1
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Corfield PWR. erythro-{1-Bromo-1-[(1-phenyl-eth-yl)sulfon-yl]eth-yl}benzene. IUCRDATA 2024; 9:x240189. [PMID: 38586521 PMCID: PMC10993556 DOI: 10.1107/s2414314624001895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2024] [Accepted: 02/26/2024] [Indexed: 04/09/2024] Open
Abstract
The title compound, C16H17BrO2S, crystallizes as the erythro (RR/SS) isomer of a pair of sulfones that were diastereomeric due to chirality of the α-carbon atoms on the sulfone sulfur atom. The structural analysis was pivotal in showing that the 1,3 elimination reactions of these compounds, which lead to substituted stilbenes, occur with inversion at each asymmetric carbon atom. In the crystal, C-H⋯Br and C-H⋯O hydrogen bonds link the mol-ecules into a tri-periodic inter-molecular network.
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Affiliation(s)
- Peter W. R. Corfield
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, NY 10458, USA
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2
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Kim J, Hong J, Park MJ, Lee HS. Tailoring Enantiomeric Chiral Channels in Metal-Peptide Networks: A Novel Foldamer-Based Approach for Host-Guest Interactions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2305753. [PMID: 37722669 DOI: 10.1002/adma.202305753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 08/13/2023] [Indexed: 09/20/2023]
Abstract
Designing chiral channels in organic frameworks presents an ongoing challenge due to the intricate control of size, shape, and functionality required. A novel approach is presented, which crafts enantiomeric chiral channels in metal-peptide networks (MPNs) by integrating short foldamer ligands with CuI clusters. The MPN structure serves as a 3D blueprint for host-guest chemistry, fostering modular substitution to refine chiral channel properties at the atomic scale. Incorporating hydrogen bond networks augments guest molecule interactions with the channel surface. This approach expedites enantiomer discrimination in racemic mixtures and incites adaptable guest molecules to take on specific axially chiral conformations. Distinct from traditional metal-organic frameworks (MOFs) and conventional reticular architectures, this foldamer-based methodology provides a predictable and customizable host-guest interaction system within a 3D topology. This innovation sets the stage for multifunctional materials that merge host-guest interaction systems with metal-complex properties, opening up potential applications in catalysis, sensing, and drug delivery.
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Affiliation(s)
- Jaewook Kim
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
| | - Jungwoo Hong
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
| | - Mi Jeong Park
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
| | - Hee-Seung Lee
- Department of Chemistry and Center for Multiscale Chiral Architectures (CMCA), KAIST, Daejeon, 34141, Republic of Korea
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3
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Lee J, Kim J, Jo H, Lim D, Hong J, Gong J, Ok KM, Lee HS. Cu(I)-thioether coordination complexes based on a chiral cyclic β-amino acid ligand. Commun Chem 2023; 6:252. [PMID: 37973829 PMCID: PMC10654774 DOI: 10.1038/s42004-023-01055-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023] Open
Abstract
Coordination complexes, particularly metalloproteins, highlight the significance of metal-sulfur bonds in biological processes. Their unique attributes inspire efforts to synthetically reproduce these intricate metal-sulfur motifs. Here, we investigate the synthesis and characterization of copper(I)-thioether coordination complexes derived from copper(I) halides and the chiral cyclic β-amino acid trans-4-aminotetrahydrothiophene-3-carboxylic acid (ATTC), which present distinctive structural properties and ligand-to-metal ratios. By incorporating ATTC as the ligand, we generated complexes that feature a unique chiral conformation and the capacity for hydrogen bonding, facilitating the formation of distinct geometric structures. Through spectroscopic analyses and density functional theory (DFT) calculations, we studied the complexes' optical properties, including their emission bands and variable second-harmonic generation (SHG) efficiencies, which vary based on the halide used. Our findings underscore the potential of the ATTC ligand in creating unusual coordination complexes and pave the way for further investigations into their potential applications, particularly within materials science.
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Affiliation(s)
- Jihee Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jaewook Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Hongil Jo
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, 04107, Republic of Korea
| | - Danim Lim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jungwoo Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jintaek Gong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Department of Chemistry Education, Sunchon National University, 255 Jungang-ro, Suncheon-si, Jeollanam-do, 57922, Republic of Korea
| | - Kang Min Ok
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- Department of Chemistry, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul, 04107, Republic of Korea.
| | - Hee-Seung Lee
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- Center for Multiscale Chiral Architectures (CMCA), KAIST, 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
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4
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Synthesis and photobiological evaluation of Ru(II) complexes with expanded chelate polypyridyl ligands. J Inorg Biochem 2023; 238:112031. [PMID: 36327501 DOI: 10.1016/j.jinorgbio.2022.112031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022]
Abstract
Photoreactive Ru(II) complexes capable of ejecting ligands have been used extensively for photocaging applications and for the creation of "photocisplatin" reagents. The incorporation of distortion into the structure of the coordination complex lowers the energy of dissociative excited states, increasing the yield of the photosubstitution reaction. While steric clash between ligands induced by adding substituents at the coordinating face of the ligand has been extensively utilized, a lesser known, more subtle approach is to distort the coordination sphere by altering the chelate ring size. Here a systematic study was performed to alter metal-ligand bond lengths, angles, and to cause intraligand distortion by introducing a "linker" atom or group between two pyridine rings. The synthesis, photochemistry, and photobiology of five Ru(II) complexes containing CH2, NH, O, and S-linked dipyridine ligands was investigated. All systems where stable in the dark, and three of the five were photochemically active in buffer. While a clear periodic trend was not observed, this study lays the foundation for the creation of photoactive systems utilizing an alternative type of distortion to facilitate photosubstitution reactions.
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5
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Colombo Dugoni G, Mori M, Dichiarante V, Sacchetti A, Meneghetti F. Synthesis and characterization of a novel lanthanum (III) complex with a di(2-picolyl)amine-based ligand endowed with fluorescent properties. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Corfield PWR. trans-Carbonylchloridobis(triethylphosphane-κ P)platinum(II) tetrafluoridoborate. IUCRDATA 2022; 7:x220607. [DOI: 10.1107/s2414314622006071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Accepted: 06/08/2022] [Indexed: 11/10/2022] Open
Abstract
The chemical formulation of the title compound was established as trans-[PtCl{P(C2H5)3(CO)}BF4 by single-crystal X-ray analysis, in contrast to the five-coordinate tetrafluoroethylene complex that had been anticipated. The compound had been prepared by reaction of trans-PtHCl(P(C2H5)3)2 with C2F4 in the absence of air, and the presence of the carbonyl group was not suspected. The square-planar cations and BF4
− anions are linked by C—H...F and C—H...O interactions into thick wavy (010) sheets. The present crystal-structure refinement is based on the original intensity data recorded in 1967.
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7
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Biochemical, Structural Analysis, and Docking Studies of Spiropyrazoline Derivatives. Int J Mol Sci 2022; 23:ijms23116061. [PMID: 35682740 PMCID: PMC9181777 DOI: 10.3390/ijms23116061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 02/05/2023] Open
Abstract
In this study, we evaluated the antiproliferative potential, DNA damage, crystal structures, and docking calculation of two spiropyrazoline derivatives. The main focus of the research was to evaluate the antiproliferative potential of synthesized compounds towards eight cancer cell lines. Compound I demonstrated promising antiproliferative properties, especially toward the HL60 cell line, for which IC50 was equal to 9.4 µM/L. The analysis of DNA damage by the comet assay showed that compound II caused DNA damage to tumor lineage cells to a greater extent than compound I. The level of damage to tumor cells of the HEC-1-A lineage was 23%. The determination of apoptotic and necrotic cell fractions by fluorescence microscopy indicated that cells treated with spiropyrazoline-based analogues were entering the early phase of programmed cell death. Compounds I and II depolarized the mitochondrial membranes of cancer cells. Furthermore, we performed simple docking calculations, which indicated that the obtained compounds are able to bind to the PARP1 active site, at least theoretically (the free energy of binding values for compound I and II were −9.7 and 8.7 kcal mol−1, respectively). In silico studies of the influence of the studied compounds on PARP1 were confirmed in vitro with the use of eight cancer cell lines. The degradation of the PARP1 enzyme was observed, with compound I characterized by a higher protein degradation activity.
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8
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Mori M, Fumagalli E, Castellano C, Tresoldi A, Sacchetti A, Meneghetti F. Synthesis and Characterization of a Tetradentate Bispidine-based Ligand and its Zinc(II) Complex. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120968] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Corfield PWR. [Sulfonylbis(bromomethylene)]dibenzene. IUCRDATA 2022; 7:x211351. [PMID: 36337089 PMCID: PMC9028549 DOI: 10.1107/s2414314621013511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 12/21/2021] [Indexed: 11/17/2022] Open
Abstract
The title compound crystallizes as the mesomeric isomer, which helped establish that the 1,3 elimination of bromine by triphenylphosphine occurs with inversion of configuration at each chiral carbon atom. The title compound, C14H12Br2O2S, crystallizes as the meso isomer of a diastereoisomeric pair. This structure determination was key to determining that the 1,3 elimination of bromine by triphenylphosphine occurs with inversion of the configuration at each of the two chiral carbon atoms. In the crystal, the molecules are linked by weak C—H⋯O and C—H⋯Br hydrogen bonds.![]()
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10
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Synthesis and characterization of a novel alkali mixed magnesium-aluminum phosphate with a layered structure–KMgAl(PO4)2. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Hossack CH, Butcher RJ, Cahill CL, Besson C. Structural Diversity of Lanthanide 3-Nitrotrispyrazolylborates: Tunable Nuclearity and Intra-Ligand Charge Transfer Sensitization of Visible and NIR Ln 3+ Emission. Inorg Chem 2021; 60:15724-15743. [PMID: 34605635 DOI: 10.1021/acs.inorgchem.1c02390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reported are the syntheses, crystal structures, and photophysical properties of 28, novel lanthanide compounds across five structural types, [Ln(3-NO2Tp)2(NO3)] (1-Ln, Ln = La-Tm, except Pm), [Bu4N][Ln(3-NO2Tp)(NO3)3] (2-Ln, Ln = Yb, Lu), [Eu(3-NO2Tp)2Cl(H2O)]·2iPrOH (3-Eu), [{Ln(3-NO2Tp)2}2(μ2-CO3)]·MeOH (4-Ln, Ln = La-Gd, except Pm), and [{Ln(3-NO2Tp)}4(μ2-OMe)6(μ4-O)] (5-Ln, Ln = Pr-Tb, except Pm) with the 3-nitrotrispyrazolylborate (3-NO2Tp-) ligand. The reaction of methanol or isopropanol solutions of LnX3 (X = Cl, NO3) with the tetrabutyl ammonium salt of the flexidentate 3-NO2Tp- ([Bu4N][3-NO2Tp]) yields Ln(3-NO2Tp)x complexes of various nuclearities as either monomers (1-Ln, 2-Ln, 3-Eu), dimers (4-Ln), or tetramers (5-Ln) owing to the efficient conversion of atmospheric CO2 to CO32- (dimers) or ligand controlled solvolysis of lanthanide ions (tetramers). 3-NO2Tp- is an efficient sensitizer for both the visible and near-IR (NIR) emissions of most of the lanthanide series, except thulium. Optical measurements, supported by density functional theory calculations, indicate that the dual visible and NIR Ln3+ emission arises from two intraligand charge transfer (ILCT) transitions of 3-NO2Tp-. This is the first report of lanthanide complexes with a nitro-functionalized pyrazolylborate ligand. The derivatization of the known Tp- ligand results in new coordination chemistry governed by the increased denticity of 3-NO2Tp-, imparting remarkable structural diversity and charge transfer properties to resultant lanthanide complexes.
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Affiliation(s)
- Christopher H Hossack
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, DC 20052, United States
| | - Raymond J Butcher
- Department of Chemistry, Howard University, 525 College St. N.W., Washington, DC 20059, United States
| | - Christopher L Cahill
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, DC 20052, United States
| | - Claire Besson
- Department of Chemistry, The George Washington University, 800 22nd Street, NW, Washington, DC 20052, United States
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12
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Shakunthala K, Srivastava AK, Babu GN, Keesara S, Pal S. Nickel(II) complexes with N,O‐donor thiopseudourea ligands: Syntheses, structures, and catalytic applications in Kumada–Corriu cross‐coupling reactions. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | - G. Narendra Babu
- School of Chemistry University of Hyderabad Hyderabad 500046 India
| | - Srinivas Keesara
- School of Chemistry University of Hyderabad Hyderabad 500046 India
| | - Samudranil Pal
- School of Chemistry University of Hyderabad Hyderabad 500046 India
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13
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Zhang Y, Duan Y, Su J, Liu L, Feng Y, Wu L, Zhang L, Zhang Y, Zou D, Liu Y. Inspiration for revival of old drugs: improving solubility and avoiding hygroscopicity of pipemidic acid by forming two pharmaceutical salts based on charge-assisted hydrogen bond recognitions. NEW J CHEM 2021. [DOI: 10.1039/d1nj03314j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Improving solubility and avoiding hygroscopicity of pipemidic acid by forming pharmaceutical salts based on CAHBs.
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Affiliation(s)
- Yunan Zhang
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Yu Duan
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Jin Su
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Lixin Liu
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Yanru Feng
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Lili Wu
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Lei Zhang
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Yunjie Zhang
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Dongyu Zou
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
| | - Yingli Liu
- College of pharmacy, Jiamusi University, Jiamusi 154007, China
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14
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García López J, Sansores Peraza PM, Iglesias MJ, Roces L, García-Granda S, López Ortiz F. Spiro[1,2]oxaphosphetanes of Nonstabilized and Semistabilized Phosphorus Ylide Derivatives: Synthesis and Kinetic and Computational Study of Their Thermolysis. J Org Chem 2020; 85:14570-14591. [DOI: 10.1021/acs.joc.0c01270] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jesús García López
- Área de Quı́mica Orgánica, Centro de Investigación CIAIMBITAL, Universidad de Almerı́a, 04120 Almería, Spain
| | - Pablo M. Sansores Peraza
- Área de Quı́mica Orgánica, Centro de Investigación CIAIMBITAL, Universidad de Almerı́a, 04120 Almería, Spain
| | - María José Iglesias
- Área de Quı́mica Orgánica, Centro de Investigación CIAIMBITAL, Universidad de Almerı́a, 04120 Almería, Spain
| | - Laura Roces
- Departamento de Quı́mica Fı́sica y Analı́tica, Universidad de Oviedo-CINN, C/Julián Clavería 8, 33006 Oviedo, Spain
- Servicios Cientı́fico Técnicos, Universidad de Oviedo, 33006 Oviedo, Spain
| | - Santiago García-Granda
- Departamento de Quı́mica Fı́sica y Analı́tica, Universidad de Oviedo-CINN, C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Fernando López Ortiz
- Área de Quı́mica Orgánica, Centro de Investigación CIAIMBITAL, Universidad de Almerı́a, 04120 Almería, Spain
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15
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Havrylyuk D, Heidary DK, Sun Y, Parkin S, Glazer EC. Photochemical and Photobiological Properties of Pyridyl-pyrazol(in)e-Based Ruthenium(II) Complexes with Sub-micromolar Cytotoxicity for Phototherapy. ACS OMEGA 2020; 5:18894-18906. [PMID: 32775891 PMCID: PMC7408248 DOI: 10.1021/acsomega.0c02079] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 07/10/2020] [Indexed: 05/09/2023]
Abstract
The discovery of new light-triggered prodrugs based on ruthenium (II) complexes is a promising approach for photoactivated chemotherapy (PACT). The light-mediated activation of "strained" Ru(II) polypyridyl complexes resulted in ligand release and produced a ligand-deficient metal center capable of forming covalent adducts with biomolecules such as DNA. Based on the strategy of exploiting structural distortion to activate photochemistry, biologically active small molecules were coordinated to a Ru(II) scaffold to create light-triggered dual-action agents. Thirteen new Ru(II) complexes with pyridyl-pyrazol(in)e ligands were synthesized, and their photochemical reactivity and anticancer properties were investigated. Isomeric bidentate ligands were investigated, where "regular" ligands (where the coordinated nitrogens in the heterocycles are linked by C-C atoms) were compared to "inverse" isomers (where the coordinated nitrogens in the heterocycles are linked by C-N atoms). Coordination of the regular 3-(pyrid-2-yl)-pyrazol(in)es to a Ru(II) bis-dimethylphenanthroline scaffold yielded photoresponsive compounds with promising photochemical and biological properties, in contrast to the inverse 1-(pyrid-2-yl)-pyrazolines. The introduction of a phenyl ring to the 1N-pyrazoline cycle increased the distortion in complexes and improved ligand release upon light irradiation (470 nm) up to 5-fold in aqueous media. Compounds 1-8, containing pyridyl-pyrazol(in)e ligands, were at least 20-80-fold more potent than the parent pyridyl-pyrazol(in)es, and exhibited biological activity in the dark, with half-maximal inhibitory concentration (IC50) values ranging from 0.2 to 7.6 μM in the HL60 cell line, with complete growth inhibition upon light irradiation. The diversification of coligands and introduction of a carboxylic acid into the Ru(II) complex resulted in compounds 9-12, with up to 146-fold improved phototoxicity indices compared with complexes 1-8.
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16
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Badri A, Alvarez-Serrano I, Luisa López M, Ben Amara M. Synthesis, crystal structure and charge-distribution validation of a new alluaudite-type phosphate, Na 2.22Mn 0.87In 1.68(PO 4) 3. Acta Crystallogr E Crystallogr Commun 2020; 76:1369-1372. [PMID: 32844032 PMCID: PMC7405582 DOI: 10.1107/s2056989020010191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 07/23/2020] [Indexed: 11/10/2022]
Abstract
Na2.22Mn0.87In1.68(PO4)3, sodium manganese indium tris-(phosphate) (2.22/0.87/1.68), was obtained in the form of single crystals by a flux method and was structurally characterized by single-crystal X-ray diffraction. The compound belongs to the alluaudite structure type (space group C2/c) with general formula X(2)X(1)M(1)M(2)2(PO4)3. The X(2) and X(1) sites are partially occupied by sodium [occupancy 0.7676 (17) and 1/2] while the M(1) and M(2) sites are fully occupied within a mixed distribution of sodium/manganese(II) and manganese(II)/indium, respectively. The three-dimensional anionic framework is built up on the basis of M(2)2O10 dimers that share opposite edges with M(1)O6 octa-hedra, thus forming infinite chains extending parallel to [10]. The linkage between these chains is ensured by PO4 tetra-hedra through common vertices. The three-dimensional network thus constructed delimits two types of hexa-gonal channels, resulting from the catenation of M(2)2O10 dimers, M(1)O6 octa-hedra and PO4 tetra-hedra through edge- and corner-sharing. The channels are occupied by Na+ cations with coordination numbers of seven and eight.
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Affiliation(s)
- Abdessalem Badri
- Laboratory of Interfacial and Advanced Materials, Faculty of Sciences (FSM), University of Monastir, Monastir 5000, Tunisia
| | - Inmaculada Alvarez-Serrano
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - María Luisa López
- Departamento de Química Inorgánica, Facultad de Ciencias Químicas, Universidad Complutense, 28040 Madrid, Spain
| | - Mongi Ben Amara
- Laboratory of Interfacial and Advanced Materials, Faculty of Sciences (FSM), University of Monastir, Monastir 5000, Tunisia
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17
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Shi ZP, Ren GB, Qi MH, Li Z, Xu XY. Design, screening, and properties of novel solvates of azoxystrobin based on isomorphism. CrystEngComm 2020. [DOI: 10.1039/d0ce00204f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The molecular size of the solvent is important for the formation of isomorphic azoxystrobin solvates.
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Affiliation(s)
- Zhi-Ping Shi
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Guo-Bin Ren
- State Key Laboratory of Bioreactor Engineering
- Engineering Research Centre of Pharmaceutical Process Chemistry
- Ministry of Education
- Laboratory of Pharmaceutical Crystal Engineering & Technology
- School of Pharmacy
| | - Ming-Hui Qi
- State Key Laboratory of Bioreactor Engineering
- Engineering Research Centre of Pharmaceutical Process Chemistry
- Ministry of Education
- Laboratory of Pharmaceutical Crystal Engineering & Technology
- School of Pharmacy
| | - Zhong Li
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Xiao-Yong Xu
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
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18
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Mojzych M, Bernat Z, Karczmarzyk Z. Reinvestigation of the reaction of 3-substituted 1,2,4-triazines with nitronate anions: unexpected behavior of 3-(2-ethoxyphenyl)-1,2,4-triazine in the reaction with anions of nitroalkanes. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02564-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Hou C, Rohr J, Parkin S, Tsodikov OV. How mithramycin stereochemistry dictates its structure and DNA binding function. MEDCHEMCOMM 2019; 10:735-741. [PMID: 31191864 DOI: 10.1039/c9md00100j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 03/28/2019] [Indexed: 12/16/2022]
Abstract
An aureolic acid natural product mithramycin (MTM) has been known for its potent antineoplastic properties. MTM inhibits cell growth by binding in the minor groove of double-stranded DNA as a dimer, in which the two molecules of MTM are coordinated to each other through a divalent metal ion. A crystal structure of an MTM analogue, MTM SA-Phe, in the active metal ion-coordinated dimeric form demonstrates how the stereochemical features of MTM define the helicity of the dimeric scaffold for its binding to a right-handed DNA double helix. We also show crystallographically and biochemically that MTM, but not MTM SA-Phe, can be inactivated by boric acid through formation of a large macrocyclic species, in which two molecules of MTM are crosslinked to each other through 3-side chain-boron-sugar intermolecular bonds. We discuss these structural and biochemical properties in the context of MTM biosynthesis and the design of MTM analogues as anticancer therapeutics.
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Affiliation(s)
- Caixia Hou
- University of Kentucky , Department of Pharmaceutical Sciences , College of Pharmacy , Lexington , KY 40536-0596 , USA . ;
| | - Jürgen Rohr
- University of Kentucky , Department of Pharmaceutical Sciences , College of Pharmacy , Lexington , KY 40536-0596 , USA . ;
| | - Sean Parkin
- University of Kentucky , Department of Chemistry , Lexington , KY 40506-0055 , USA .
| | - Oleg V Tsodikov
- University of Kentucky , Department of Pharmaceutical Sciences , College of Pharmacy , Lexington , KY 40536-0596 , USA . ;
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20
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Salahi S, Hazeri N, Maghsoodlou MT, García-Granda S, Torre-Fernández L. Stereoselective Synthesis of 1′,5′,7′,8′-Tetrahydro-2′H,4′H-Dispiro[[1,3] Dioxane-5,3′-Quinoline-6′,5″-[1″,3″]Dioxane]-4,4″,6,6″-Tetrone Derivatives in the Presence of Benzoic Acid as an Efficient Catalyst Via One-Pot Multicomponent Reaction. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/174751914x14017157492019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Sajjad Salahi
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, PO Box 98135-674 Zahedan, Iran
| | - Nourallah Hazeri
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, PO Box 98135-674 Zahedan, Iran
| | - Malek Taher Maghsoodlou
- Department of Chemistry, Faculty of Science, University of Sistan and Baluchestan, PO Box 98135-674 Zahedan, Iran
| | - Santiago García-Granda
- Department of Physical and Analytical Chemistry, University of Oviedo-CINN, Oviedo, Spain
| | - Laura Torre-Fernández
- Department of Physical and Analytical Chemistry, University of Oviedo-CINN, Oviedo, Spain
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21
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Ghosh S, Srivastava AK, Pal S. Dihydroxo-bridged diuranyl(vi) complexes with 2-((2-(6-chloropyridazin-3-yl)hydrazono)methyl)-4-R-phenols: structural insights and visible light driven photocatalytic activities. NEW J CHEM 2019. [DOI: 10.1039/c8nj05038d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Complexes of the {(UO2)2(μ-OH)2}2+ core with N,N,O-donor 2-((2-(6-chloropyridazin-3-yl)hydrazono)methyl)-4-R-phenolates and their visible light-induced photocatalytic organic dye degradation abilities are reported.
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Affiliation(s)
- Sabari Ghosh
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
| | | | - Samudranil Pal
- School of Chemistry
- University of Hyderabad
- Hyderabad 500 046
- India
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22
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Havrylyuk D, Howerton BS, Nease L, Parkin S, Heidary DK, Glazer EC. Structure-activity relationships of anticancer ruthenium(II) complexes with substituted hydroxyquinolines. Eur J Med Chem 2018; 156:790-799. [DOI: 10.1016/j.ejmech.2018.04.044] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 04/16/2018] [Accepted: 04/21/2018] [Indexed: 12/18/2022]
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23
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Li X, Parkin SR, Lehmler HJ. Absolute configuration of 2,2',3,3',6-pentachlorinatedbiphenyl (PCB 84) atropisomers. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:16402-16410. [PMID: 28537024 PMCID: PMC5823790 DOI: 10.1007/s11356-017-9259-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 05/10/2017] [Indexed: 05/05/2023]
Abstract
Nineteen polychlorinated biphenyl (PCB) congeners, such as 2,2',3,3',6-pentachlorobiphenyl (PCB 84), display axial chirality because they form stable rotational isomers, or atropisomers, that are non-superimposable mirror images of each other. Although chiral PCBs undergo atropselective biotransformation and atropselectively alter biological processes, the absolute structure of only a few PCB atropisomers has been determined experimentally. To help close this knowledge gap, pure PCB 84 atropisomers were obtained by semi-preparative liquid chromatography with two serially connected Nucleodex β-PM columns. The absolute configuration of both atropisomers was determined by X-ray single-crystal diffraction. The PCB 84 atropisomer eluting first and second on the Nucleodex β-PM column correspond to (aR)-(-)-PCB 84 and (aS)-(+)-PCB 84, respectively. Enantioselective gas chromatographic analysis with the β-cyclodextrin-based CP-Chirasil-Dex CB gas chromatography column showed the same elution order as the Nucleodex β-PM column. Based on earlier reports, the atropisomers eluting first and second on the BGB-172 gas chromatography column are (aR)-(-)-PCB 84 and (aS)-(+)-PCB 84, respectively. An inversion of the elution order is observed on the Cyclosil-B gas chromatography and Cellulose-3 liquid chromatography columns. These results advance the interpretation of environmental and human biomonitoring as well as toxicological studies.
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Affiliation(s)
- Xueshu Li
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, 52242, USA
| | - Sean R Parkin
- Department of Chemistry, University of Kentucky, Lexington, KY, 40506, USA
| | - Hans-Joachim Lehmler
- Department of Occupational and Environmental Health, College of Public Health, The University of Iowa, Iowa City, IA, 52242, USA.
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24
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Design, synthesis, structure elucidation and in vitro antiviral and antimicrobial evaluation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2018. [DOI: 10.1007/s13738-017-1283-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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25
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Ruiz J, García L, Vivanco M, Sol D, García-Granda S. Half-sandwich iron(ii) complexes with protic acyclic diaminocarbene ligands: synthesis, deprotonation and metalation reactions. Dalton Trans 2017; 46:10387-10398. [PMID: 28745355 DOI: 10.1039/c7dt02049j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A variety of half-sandwich iron(ii) complexes with diprotic acyclic diaminocarbene ligands (pADCs) have been obtained by reaction of the cationic complexes [Fe(Cp)(CO)2(CNR)]+ and [Fe(Cp)(CO)(CNR)2]+ with methylamine, and their acid-base behaviour was studied, revealing an easy reversible deprotonation reaction of both N-H moieties of the carbene ligands. The deprotonation process is frequently followed by a nucleophilic attack of the nitrogen atom on a vicinal carbonyl or isocyanide ligand, affording the corresponding metallacycles. Metalation of one or two N-H groups of the pADC ligands can be accomplished by reaction of the carbene complexes with either [AuCl(PPh3)] or [Ru(p-cym)Cl2]2 in the presence of KOH or LiHMDS as deprotonating agents. A number of Fe(ii)/Au(i) and Fe(ii)/Ru(ii) heterometallic complexes have been prepared in this way, some of them formally containing unique metalla-N-heterocyclic carbene ligands.
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Affiliation(s)
- Javier Ruiz
- Departamento de Química Orgánica e Inorgánica, Facultad de Química, Universidad de Oviedo, 33006 Oviedo, Spain.
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26
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Ben Hamed T, Boukhris A, Badri A, Ben Amara M. Synthesis and crystal structure of a new magnesium phosphate Na 3RbMg 7(PO 4) 6. Acta Crystallogr E Crystallogr Commun 2017; 73:817-820. [PMID: 28638634 PMCID: PMC5458299 DOI: 10.1107/s2056989017006363] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 04/27/2017] [Indexed: 11/10/2022]
Abstract
A new magnesium phosphate, Na3RbMg7(PO4)6 [tris-odium rubidium hepta-magnesium hexakis(ortho-phosphate)], has been synthesized as single crystals by the flux method and exhibits a new structure type. Its original structure is built up from MgO x (x = 5 and 6) polyhedra linked directly to each other through common corners or edges and reinforced by corner-sharing with PO4 tetra-hedra. The resulting anionic three-dimensional framework leads to the formation of channels along the [010] direction, in which the Na+ cations are located, while the Rb+ cations are located in large inter-stitial cavities.
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Affiliation(s)
- Teycir Ben Hamed
- Unité de recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia
| | - Amal Boukhris
- Unité de recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia
| | - Abdessalem Badri
- Unité de recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia
| | - Mongi Ben Amara
- Unité de recherche, Matériaux Inorganiques, Faculté des Sciences, Université de Monastir, 5019, Monastir, Tunisia
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27
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Nkhili NL, Rekik W, Naïli H, Mhiri T, Bataille T. Crystal structures and characterization of two divalent metal selenates templated by dabco, (C6H14N2)[MII(H2O)6](SeO4)2 (MII: NiII, ZnII). ARAB J CHEM 2017. [DOI: 10.1016/j.arabjc.2013.09.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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28
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Keesara S, Narendra Babu G, Pal S. An acetatopalladium(II) complex with 1‐benzyl‐
N
‐(3,5‐di‐
tert
‐butylsalicylidene)piperidin‐4‐amine: Synthesis, structure and catalytic applications in Suzuki–Miyaura coupling of arylboronic acids with hydroxyaryl halides. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Srinivas Keesara
- School of ChemistryUniversity of Hyderabad Hyderabad 500046 India
| | - G. Narendra Babu
- School of ChemistryUniversity of Hyderabad Hyderabad 500046 India
| | - Samudranil Pal
- School of ChemistryUniversity of Hyderabad Hyderabad 500046 India
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29
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Abdelbaky MS, Amghouz Z, Blanco DM, García-Granda S, García JR. Crystal structure and characterization of a novel layered copper-lithium phosphonate with antiferromagnetic intrachain Cu(II)···Cu(II) interactions. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.01.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Havrylyuk D, Heidary DK, Nease L, Parkin S, Glazer EC. Photochemical Properties and Structure-Activity Relationships of Ru II Complexes with Pyridylbenzazole Ligands as Promising Anticancer Agents. Eur J Inorg Chem 2017; 2017:1687-1694. [PMID: 29200939 PMCID: PMC5703414 DOI: 10.1002/ejic.201601450] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Indexed: 01/07/2023]
Abstract
Ruthenium complexes capable of light-triggered cytotoxicity are appealing potential prodrugs for photodynamic therapy (PDT) and photoactivated chemotherapy (PACT). Two groups of Ru(II) polypyridyl complexes with 2-(2-pyridyl)-benzazole ligands were synthesized and investigated for their photochemical properties and anticancer activity to compare strained and unstrained systems that are likely to have different biological mechanisms of action. The structure-activity relationship was focused on the benzazole core bioisosterism and replacement of coligands in Ru(II) complexes. Strained compounds rapidly ejected the 2-(2-pyridyl)-benzazole ligand after light irradiation, and possessed strong toxicity in the HL-60 cell line both under dark and light conditions. In contrast, unstrained Ru(II) complexes were non-toxic in the absence of light, induced cytotoxicity at nanomolar concentrations after light irradiation, and are capable of light-induced DNA damage. The 90-220-fold difference in light and dark IC50 values provides a large potential therapeutic window to allow for selective targeting of cells by exposure to light.
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Affiliation(s)
- Dmytro Havrylyuk
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - David K Heidary
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Leona Nease
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Edith C Glazer
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
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31
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Bellich B, Di Fonzo S, Tavagnacco L, Paolantoni M, Masciovecchio C, Bertolotti F, Giannini G, De Zorzi R, Geremia S, Maiocchi A, Uggeri F, Masciocchi N, Cesàro A. Myelography Iodinated Contrast Media. 2. Conformational Versatility of Iopamidol in the Solid State. Mol Pharm 2017; 14:468-477. [PMID: 28059514 DOI: 10.1021/acs.molpharmaceut.6b00902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The phenomenon of polymorphism is of great relevance in pharmaceutics, since different polymorphs have different physicochemical properties, e.g., solubility, hence, bioavailability. Coupling diffractometric and spectroscopic experiments with thermodynamic analysis and computational work opens to a methodological approach which provides information on both structure and dynamics in the solid as well as in solution. The present work reports on the conformational changes in crystalline iopamidol, which is characterized by atropisomerism, a phenomenon that influences both the solution properties and the distinct crystal phases. The conformation of iopamidol is discussed for three different crystal phases. In the anhydrous and monohydrate crystal forms, iopamidol molecules display a syn conformation of the long branches stemming out from the triiodobenzene ring, while in the pentahydrate phase the anti conformation is found. IR and Raman spectroscopic studies carried out on the three crystal forms, jointly with quantum chemical computations, revealed that the markedly different spectral features can be specifically attributed to the different molecular conformations. Our results on the conformational versatility of iopamidol in different crystalline phases, linking structural and spectroscopic evidence for the solution state and the solid forms, provide a definite protocol for grasping the signals that can be taken as conformational markers. This is the first step for understanding the crystallization mechanism occurring in supersaturated solution of iopamidol molecules.
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Affiliation(s)
- Barbara Bellich
- Laboratory of Physical and Macromolecular Chemistry, Department of Chemical and Pharmaceutical Sciences, University of Trieste , via Giorgieri 1, I-34127 Trieste, Italy
| | - Silvia Di Fonzo
- Elettra Sincrotrone Trieste , Area Science Park, I-34149 Trieste, Italy
| | - Letizia Tavagnacco
- Laboratory of Physical and Macromolecular Chemistry, Department of Chemical and Pharmaceutical Sciences, University of Trieste , via Giorgieri 1, I-34127 Trieste, Italy
| | - Marco Paolantoni
- Department of Chemistry, Biology and Biotechnologies, University of Perugia , via Elce di Sotto 8, I-06123 Perugia, Italy
| | | | - Federica Bertolotti
- Department of Science and High Technology, To.Sca.Lab and INSTM, University of Insubria , via Valleggio 11, I-22100 Como, Italy
| | - Giovanna Giannini
- Laboratory of Physical and Macromolecular Chemistry, Department of Chemical and Pharmaceutical Sciences, University of Trieste , via Giorgieri 1, I-34127 Trieste, Italy
| | - Rita De Zorzi
- Laboratory of Physical and Macromolecular Chemistry, Department of Chemical and Pharmaceutical Sciences, University of Trieste , via Giorgieri 1, I-34127 Trieste, Italy
| | - Silvano Geremia
- Laboratory of Physical and Macromolecular Chemistry, Department of Chemical and Pharmaceutical Sciences, University of Trieste , via Giorgieri 1, I-34127 Trieste, Italy
| | - Alessandro Maiocchi
- Centro Ricerche Bracco, Bracco Imaging SpA , via Ribes 5, I-10010 Colleretto Giacosa, Turin, Italy
| | - Fulvio Uggeri
- Centro Ricerche Bracco, Bracco Imaging SpA , via Ribes 5, I-10010 Colleretto Giacosa, Turin, Italy
| | - Norberto Masciocchi
- Department of Science and High Technology, To.Sca.Lab and INSTM, University of Insubria , via Valleggio 11, I-22100 Como, Italy
| | - Attilio Cesàro
- Laboratory of Physical and Macromolecular Chemistry, Department of Chemical and Pharmaceutical Sciences, University of Trieste , via Giorgieri 1, I-34127 Trieste, Italy.,Elettra Sincrotrone Trieste , Area Science Park, I-34149 Trieste, Italy
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32
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Mixed-valence μ3-oxo-centered triruthenium cluster [Ru3(II,III,III)(μ3-O)(μ-CH3CO2)6(H2O)3]·2H2O: Synthesis, structural characterization, valence-state delocalization and catalytic behavior. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.05.046] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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Synthesis, characterization, crystal structure and antimicrobial studies of a novel Cu(II) complex based on itaconic acid and nicotinamide. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.07.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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34
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Knyazev A, Fukin G, Rumyantcev R, Komshina M, Savushkin I, Paranyuk A. Synthesis, thermal analysis, IR spectrum and crystal structure of K2Th2(NO3)10·15H2O. Structural evolution of thorium nitrate complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.06.040] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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35
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Guercia E, Berti F, Navarini L, Demitri N, Forzato C. Isolation and characterization of major diterpenes from C. canephora roasted coffee oil. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.06.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Prabhu RN, Babu GN, Pal S. Triphenylphosphinopalladium(II) complexes with ONO-donor ligands: syntheses, structures and catalytic applications in CC cross-coupling reactions. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3544] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | - G. Narendra Babu
- School of Chemistry; University of Hyderabad; Hyderabad 500046 India
| | - Samudranil Pal
- School of Chemistry; University of Hyderabad; Hyderabad 500046 India
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37
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Corfield PWR, Cleary E, Michalski JF. Crystal structure of poly[N,N-diethyl-2-hy-droxy-ethan-1-aminium [μ3-cyanido-κ(3) C:C:N-di-μ-cyanido-κ(4) C:N-dicuprate(I)]]. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2016; 72:892-6. [PMID: 27555925 PMCID: PMC4992900 DOI: 10.1107/s2056989016008781] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 05/30/2016] [Indexed: 11/10/2022]
Abstract
In the title compound, {(C6H16NO)[Cu2(CN)3]} n , the cyanide groups link the Cu(I) atoms into an open three-dimensional anionic network, with the mol-ecular formula Cu2(CN)3 (-). One Cu(I) atom is tetra-hedrally bound to four CN groups, and the other Cu(I) atom is bonded to three CN groups in an approximate trigonal-planar coordination. The tetra-hedrally coordinated Cu(I) atoms are linked into centrosymmetric dimers by the C atoms of two end-on bridging CN groups which bring the Cu(I) atoms into close contact at 2.5171 (7) Å. Two of the cyanide groups bonded to the Cu(I) atoms with trigonal-planar surrounding link the dimeric units into columns along the a axis, and the third links the columns together to form the network. The N,N-di-ethyl-ethano-lamine mol-ecules used in the synthesis have become protonated at the N atoms and are situated in cavities in the network, providing charge neutrality, with no covalent inter-actions between the cations and the anionic network.
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Affiliation(s)
- Peter W R Corfield
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, NY 10458, USA
| | - Emma Cleary
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, NY 10458, USA
| | - Joseph F Michalski
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, NY 10458, USA
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38
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Cabeza JA, García-Álvarez P, Gobetto R, González-Álvarez L, Nervi C, Pérez-Carreño E, Polo D. [MnBrL(CO)4] (L = Amidinatogermylene): Reductive Dimerization, Carbonyl Substitution, and Hydrolysis Reactions. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00168] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Javier A. Cabeza
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Roberto Gobetto
- Dipartimento
di Chimica, Università di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Laura González-Álvarez
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Carlo Nervi
- Dipartimento
di Chimica, Università di Torino, via P. Giuria 7, 10125 Torino, Italy
| | - Enrique Pérez-Carreño
- Departamento
de Química Física y Analítica, Universidad de Oviedo, E-33071 Oviedo, Spain
| | - Diego Polo
- Departamento
de Química Orgánica e Inorgánica-IUQOEM, Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
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39
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Salahi S, Maghsoodlou MT, Hazeri N, Lashkari M, Torbati NA, Kazemian MA, García-Granda S, Torre-Fernández L. Brønsted acidic ionic liquid catalyzed synthesis of poly-substituted hydroquinolines through diastereoselective, one-pot and pseudo-eight-component reaction. JOURNAL OF SAUDI CHEMICAL SOCIETY 2016. [DOI: 10.1016/j.jscs.2014.11.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Synthesis, Structures and Luminescence Properties of Metal-Organic Frameworks Based on Lithium-Lanthanide and Terephthalate. Polymers (Basel) 2016; 8:polym8030086. [PMID: 30979178 PMCID: PMC6432550 DOI: 10.3390/polym8030086] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 03/08/2016] [Accepted: 03/10/2016] [Indexed: 11/17/2022] Open
Abstract
Metal-organic frameworks assembled from Ln(III), Li(I) and rigid dicarboxylate ligand, formulated as [LiLn(BDC)2(H2O)·2(H2O)] (MS1-6,7a) and [LiTb(BDC)2] (MS7b) (Ln = Tb, Dy, Ho, Er, Yb, Y0.96Eu0.04, Y0.93Tb0.07, and H2BDC = terephthalic acid), were obtained under hydrothermal conditions. The isostructural MS1-6 crystallize in monoclinic P21/c space group. While, in the case of Tb3+ a mixture of at least two phases was obtained, the former one (MS7a) and a new monoclinic C2/c phase (MS7b). All compounds have been studied by single-crystal and powder X-ray diffraction, thermal analyses (TGA), vibrational spectroscopy (FTIR), and scanning electron microscopy (SEM-EDX). The structures of MS1-6 and MS7a are built up of inorganic-organic hybrid chains. These chains constructed from unusual four-membered rings, are formed by edge- and vertex-shared {LnO8} and {LiO4} polyhedra through oxygen atoms O3 (vertex) and O6-O7 (edge). Each chain is cross-linked to six neighboring chains through six terephthalate bridges. While, the structure of MS7b is constructed from double inorganic chains, and each chain is, in turn, related symmetrically to the adjacent one through the c glide plane. These chains are formed by infinitely alternating {LiO4} and {TbO8} polyhedra through (O2-O3) edges to create Tb–O–Li connectivity along the c-axis. Both MS1-6,7a and MS7b structures possess a 3D framework with 1D trigonal channels running along the a and c axes, containing water molecules and anhydrous, respectively. Topological studies revealed that MS1-6 and MS7a have a new 2-nodal 3,10-c net, while MS7b generates a 3D net with unusual β-Sn topology. The photoluminescence properties Eu- and Tb-doped compounds (MS5-6) are also investigated, exhibiting strong red and green light emissions, respectively, which are attributed to the efficient energy transfer process from the BDC ligand to Eu3+ and Tb3+.
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Crystal structure of 2,2′-diamino-[1,1′-biphenyl]-4,4′-dicarboxylic acid dihydrate, C 14H 16N 2O 6. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2014-9143] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C14H16N2O6, triclinic, P1̅ (no. 2), a = 10.0254(5) Å, b = 11.2726(6) Å, c = 13.4494(7) Å, α = 111.535(2)°, β = 92.068(2)°, γ = 102.644(2)°, V = 1368.16(13) Å3, Z = 4, R
gt
(F) = 0.047, wR
ref
(F
2
) = 0.133, T = 150 K.
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Wachter E, Moyá D, Parkin S, Glazer EC. Ruthenium Complex "Light Switches" that are Selective for Different G-Quadruplex Structures. Chemistry 2016; 22:550-9. [PMID: 26560887 PMCID: PMC4703525 DOI: 10.1002/chem.201503203] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Indexed: 01/03/2023]
Abstract
Recognition and regulation of G-quadruplex nucleic acid structures is an important goal for the development of chemical tools and medicinal agents. The addition of a bromo-substituent to the dipyridylphenazine (dppz) ligands in the photophysical "light switch", [Ru(bpy)2 dppz](2+) , and the photochemical "light switch", [Ru(bpy)2 dmdppz](2+) , creates compounds with increased selectivity for an intermolecular parallel G-quadruplex and the mixed-hybrid G-quadruplex, respectively. When [Ru(bpy)2 dppz-Br](2+) and [Ru(bpy)2 dmdppz-Br](2+) are incubated with the G-quadruplexes, they have a stabilizing effect on the DNA structures. Activation of [Ru(bpy)2 dmdppz-Br](2+) with light results in covalent adduct formation with the DNA. These complexes demonstrate that subtle chemical modifications of Ru(II) complexes can alter G-quadruplex selectivity, and could be useful for the rational design of in vivo G-quadruplex probes.
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Affiliation(s)
- Erin Wachter
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506 (USA)
| | - Diego Moyá
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506 (USA)
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506 (USA)
| | - Edith C Glazer
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, KY 40506 (USA).
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Talotta C, Rubino L, Gaeta C, Capitelli F, Saviano M, Brancatelli G, Geremia S, Vasca E, Neri P. Synthesis and supramolecular features of hybrid POM/onium solid-state assemblies. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1108418] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Carmen Talotta
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | - Luca Rubino
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | | | | | - Giovanna Brancatelli
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Trieste, Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste, Trieste, Italy
| | - Ermanno Vasca
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia, Università degli Studi di Salerno, Salerno, Italy
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Álvarez-Rodríguez L, Cabeza JA, García-Álvarez P, Polo D. Amidinatogermylene Complexes of Copper, Silver, and Gold. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00828] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lucía Álvarez-Rodríguez
- Departamento de Química
Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Javier A. Cabeza
- Departamento de Química
Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Pablo García-Álvarez
- Departamento de Química
Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
| | - Diego Polo
- Departamento de Química
Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain
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45
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Rao AB, Pal S. Mono- and dinuclear platinum(II) complexes via single and double cycloplatinations of Nʹ-(arylidene)benzohydrazides. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Metal–organic frameworks assembled from lanthanide and 2,5-pyridinedicaboxylate with cubane-like [Ln4(OH)4] building units. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.05.018] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Wysocki W, Karczmarzyk Z, Rządkowska M, Szacoń E, Matosiuk D, Urbańczyk-Lipkowska Z, Kalicki P. Structural investigations of a series of 1,6-aryl-7-hydroxy-2,3-dihydroimidazo[1,2-a]pyrimidin-5(1H)-ones with potential antinociceptive activity. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Corfield PWR, Seeler U. Crystal structure of bis-(1,1,2,2-tetra-methyl-diphosphane-1,2-di-thione-κ(2) S,S')copper(I) tetra-fluorido-borate. ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS 2015; 71:716-9. [PMID: 26090159 PMCID: PMC4459368 DOI: 10.1107/s2056989015009913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Accepted: 05/22/2015] [Indexed: 11/26/2022]
Abstract
In the title salt, [Cu(C4H12P2S2)2]BF4, both diphosphine disulfide molecules bind to the CuI atom as chelating ligands via the S atoms, forming a monovalent cation with a slightly distorted tetrahedral coordination around the CuI atom. The ligand chelate rings are twisted in opposite directions, with one in the λ and one in the δ configuration. In the crystal, possible C—H⋯F hydrogen bonds may stabilize the orientation. In the title compound, [Cu(C4H12P2S2)2]BF4, both diphosphine disulfide molecules bind to the CuI atom, as chelating ligands via the S atoms, forming a monovalent cation with a slightly distorted tetrahedral coordination around the CuI atom. The average Cu—S distance is 2.350 (15) Å, with small but possibly significant differences within each chelate ring. Ligand P=S distances average 1.964 (3) Å, and the P—P distances are 2.2262 (13) and 2.2166 (14) Å. The ligand chelate rings are twisted in opposite directions, with one in the λ and one in the δ configuration. Although the anisotropic displacement parameters of the F atoms of the anion are quite large compared to that of the B atom, difference Fourier syntheses indicate only one set of sites for the F atoms. In the crystal, possible C—H⋯F hydrogen bonds may stabilize the orientation. The B—F distances, uncorrected for libration, average 1.359 (6) Å.
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Affiliation(s)
- Peter W R Corfield
- Department of Chemistry, Fordham University, 441 East Fordham Road, Bronx, NY 10458, USA
| | - Uwe Seeler
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA
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Complexes of cis -dioxomolybdenum(VI) with unsymmetrical tripodal NO 3 -donor ligands: Synthesis, characterization and catalytic applications. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.02.022] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Hydrothermal synthesis and characterization of a two-dimensional piperazinium cobalt–zinc phosphate via a metastable one-dimensional phase. J SOLID STATE CHEM 2015. [DOI: 10.1016/j.jssc.2015.01.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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