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Pérez‐Bitrián A, Hoffmann KF, Krause KB, Thiele G, Limberg C, Riedel S. Unravelling the Role of the Pentafluoroorthotellurate Group as a Ligand in Nickel Chemistry. Chemistry 2022; 28:e202202016. [PMID: 35851723 PMCID: PMC9825845 DOI: 10.1002/chem.202202016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Indexed: 01/11/2023]
Abstract
The pentafluoroorthotellurate group (teflate, OTeF5 ) is able to form species, for which only the fluoride analogues are known. Despite nickel fluorides being widely investigated, nickel teflates have remained elusive for decades. By reaction of [NiCl4 ]2- and neat ClOTeF5 , we have synthesized the homoleptic [Ni(OTeF5 )4 ]2- anion, which presents a distorted tetrahedral structure, unlike the polymeric [NiF4 ]2- . This high-spin complex has allowed the study of the electronic properties of the teflate group, which can be classified as a weak/medium-field ligand, and therefore behaves as the fluoride analogue also in ligand-field terms. The teflate ligands in [NEt4 ]2 [Ni(OTeF5 )4 ] are easily substituted, as shown by the formation of [Ni(NCMe)6 ][OTeF5 ]2 by dissolving it in acetonitrile. Nevertheless, careful reactions with other conventional ligands have enabled the crystallization of nickel teflate complexes with different coordination geometries, i.e. [NEt4 ]2 [trans-Ni(OEt2 )2 (OTeF5 )4 ] or [NEt4 ][Ni(bpyMe2 )(OTeF5 )3 ].
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Affiliation(s)
- Alberto Pérez‐Bitrián
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie – Anorganische ChemieFreie Universität BerlinFabeckstraße 34/3614195BerlinGermany
| | - Kurt F. Hoffmann
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie – Anorganische ChemieFreie Universität BerlinFabeckstraße 34/3614195BerlinGermany
| | - Konstantin B. Krause
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Günther Thiele
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie – Anorganische ChemieFreie Universität BerlinFabeckstraße 34/3614195BerlinGermany
| | - Christian Limberg
- Institut für ChemieHumboldt-Universität zu BerlinBrook-Taylor-Straße 212489BerlinGermany
| | - Sebastian Riedel
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie – Anorganische ChemieFreie Universität BerlinFabeckstraße 34/3614195BerlinGermany
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Tholen P, Brown CN, Keil C, Bayir A, Zeng HH, Haase H, Thompson RB, Lengyel I, Yücesan G. A 2,7-dichlorofluorescein derivative to monitor microcalcifications. MOLECULAR SYSTEMS DESIGN & ENGINEERING 2022; 7:1415-1421. [PMID: 37927331 PMCID: PMC10624163 DOI: 10.1039/d2me00185c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Herein, we report the crystal structure of 2,7-dichlorofluorescein methyl ester (DCF-ME) and its fluorescence response to hydroxyapatite binding. The reported fluorophore is very selective for staining the bone matrix and provides turn-on fluorescence upon hydroxyapatite binding. The reported fluorophore can readily pass the cell membrane of the C2C12 cell line, and it is non-toxic for the cell line. The reported fluorophore DCF-ME may find applications in monitoring bone remodeling and microcalcification as an early diagnosis tool for breast cancer and age-related macular degeneration.
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Affiliation(s)
- Patrik Tholen
- Institute for Food Chemistry and Toxicology, Germany, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Connor N Brown
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Claudia Keil
- Institute for Food Chemistry and Toxicology, Germany, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Ali Bayir
- The Department of Chemistry, Yıldız Technical University, 34220, Esenler, Istanbul, Turkey
| | - Hui-Hui Zeng
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Hajo Haase
- Institute for Food Chemistry and Toxicology, Germany, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
| | - Richard B Thompson
- Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, Maryland 21201, USA
| | - Imre Lengyel
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University Belfast, Belfast BT9 7BL, UK
| | - Gündoğ Yücesan
- Institute for Food Chemistry and Toxicology, Germany, Technische Universität Berlin, Gustav-Meyer-Allee 25, 13355 Berlin, Germany
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3
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Stogniy MY, Anufriev SA, Shmal'ko AV, Antropov SM, Anisimov AA, Suponitsky KY, Filippov OA, Sivaev IB. The unexpected reactivity of 9-iodo-nido-carborane: from nucleophilic substitution reactions to the synthesis of tricobalt tris(dicarbollide) Na[4,4',4''-(MeOCH 2CH 2O) 3-3,3',3''-Co 3(μ 3-O)(μ 3-S)(1,2-C 2B 9H 10) 3]. Dalton Trans 2021; 50:2671-2688. [PMID: 33533344 DOI: 10.1039/d0dt03857a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An unusual reactivity of 9-iodo-nido-carborane [9-I-7,8-C2B9H11]- towards nucleophiles under strong basic conditions was revealed. The nucleophilic substitution of iodine with O- and N-nucleophiles results in [9-RO-7,8-C2B9H11]- (R = H, CH2CH2OMe) and [9-L-7,8-C2B9H11] (L = Py, NEt3, Me2NCH2CH2NMe2), respectively. Reaction of [9-I-7,8-C2B9H11]- with CoCl2 in 1,2-dimethoxyethane in the presence of t-BuOK, depending on the order of addition of the reagents, leads either to a diastereomeric mixture of diiodo derivatives cobalt bis(dicarbollide) rac-[4,4'-I2-3,3'-Co(1,2-C2B9H10)2]- and meso-[4,7'-I2-3,3'-Co(1,2-C2B9H10)2]- or to the corresponding mixture of 2-methoxyethoxy derivatives rac-[4,4'-(MeOCH2CH2O)2-3,3'-Co(1,2-C2B9H10)2]- and meso-[4,7'-(MeOCH2CH2O)2-3,3'-Co(1,2-C2B9H10)2]-. In the presence of accidental admixture of sodium thiosulfate, the reactions of 9-iodo-nido-carborane and 9-(2'-methoxyethoxy)-nido-carborane with CoCl2 in 1,2-dimethoxyethane were found to produce additionally unprecedented tricobalt tris(dicarbollide) cluster Na[4,4',4''-(MeOCH2CH2O)3-3,3',3''-Co3(μ3-O)(μ3-S)(1,2-C2B9H10)3], the central fragment of which is a trigonal bipyramid with apical oxygen and sulfur atoms, and the base is formed by the Co3 triangle flanked by three dicarbollide ligands. In addition, the 2-methoxyethoxy substituents of the dicarbollide ligands chelate the sodium cation in such a way that they form a helix whose rotation direction depends on the enantiomer of the parent ligand. Thus, in this case, induction of the helical chirality of the complex occurs due to the point chirality of the initial inorganic ligand. It is worth noting that in the case of symmetrically substituted 2-methoxyethoxy derivative of nido-carborane [10-MeOCH2CH2O-7,8-C2B9H11]- only formation of the corresponding cobalt bis(dicarbollide) complex [8,8'-(MeOCH2CH2O)2-3,3'-Co(1,2-C2B9H10)2]- was observed.
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Affiliation(s)
- Marina Yu Stogniy
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Str., Moscow, 119991, Russia.
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Cui X, Bai F, Li H, Guo J, Liu B, Kim I. Alkoxy-Substituted Dicyclopentadienedichloropalladium(II) Complexes for the Vinyl Polymerization of 5-Ethylidene-2-Norbornene. Macromol Res 2019. [DOI: 10.1007/s13233-019-7124-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Nguyen XB, Nakano Y, Duggan NM, Scott L, Breugst M, Lupton DW. N‐Heterocyclic Carbene Catalyzed (5+1) Annulations Exploiting a Vinyl Dianion Synthon Strategy. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xuan B. Nguyen
- School of Chemistry Monash University Clayton 3800 Victoria Australia
| | - Yuji Nakano
- School of Chemistry Monash University Clayton 3800 Victoria Australia
| | | | - Lydia Scott
- School of Chemistry Monash University Clayton 3800 Victoria Australia
| | - Martin Breugst
- Department für Chemie Universität zu Köln Greinstraße 4 50939 Köln Germany
| | - David W. Lupton
- School of Chemistry Monash University Clayton 3800 Victoria Australia
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Nguyen XB, Nakano Y, Duggan NM, Scott L, Breugst M, Lupton DW. N‐Heterocyclic Carbene Catalyzed (5+1) Annulations Exploiting a Vinyl Dianion Synthon Strategy. Angew Chem Int Ed Engl 2019; 58:11483-11490. [DOI: 10.1002/anie.201905475] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Xuan B. Nguyen
- School of Chemistry Monash University Clayton 3800 Victoria Australia
| | - Yuji Nakano
- School of Chemistry Monash University Clayton 3800 Victoria Australia
| | | | - Lydia Scott
- School of Chemistry Monash University Clayton 3800 Victoria Australia
| | - Martin Breugst
- Department für Chemie Universität zu Köln Greinstraße 4 50939 Köln Germany
| | - David W. Lupton
- School of Chemistry Monash University Clayton 3800 Victoria Australia
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Ibad MF, Schulz A, Villinger A. Facile Route to Silver Triarene Borate Salts, [Ag(arene)3][B(C6F5)4]: Thermodynamics, Structure, and Bonding. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00873] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Muhammad Farooq Ibad
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
| | - Axel Schulz
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Strasse 29a, 18059 Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Abteilung Anorganische Chemie, Universität Rostock, Albert-Einstein-Strasse 3a, 18059 Rostock, Germany
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Jenne C, Wegener B. Silver Salts of the Weakly Coordinating Anion [Me3
NB12
Cl11
]-. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800358] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Carsten Jenne
- Anorganische Chemie; Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstr. 20 42119 Wuppertal Germany
| | - Bianca Wegener
- Anorganische Chemie; Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstr. 20 42119 Wuppertal Germany
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9
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Hämmerling S, Mann L, Steinhauer S, Kuntze-Fechner MW, Radius U, Riedel S. Investigation of Organonickel-Pentafluoroorthotellurates. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sebastian Hämmerling
- Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 34/36 14195 Berlin Germany
| | - Lisa Mann
- Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 34/36 14195 Berlin Germany
| | - Simon Steinhauer
- Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 34/36 14195 Berlin Germany
| | | | - Udo Radius
- Institut für Anorganische Chemie; Julius-Maximilians-Universität Würzburg; Am Hubland 97074 Würzburg Germany
| | - Sebastian Riedel
- Institut für Chemie und Biochemie; Freie Universität Berlin; Fabeckstr. 34/36 14195 Berlin Germany
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10
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Choi JS, Bae J, Lee EJ, Jeong NC. A Chemical Role for Trichloromethane: Room-Temperature Removal of Coordinated Solvents from Open Metal Sites in the Copper-Based Metal–Organic Frameworks. Inorg Chem 2018; 57:5225-5231. [DOI: 10.1021/acs.inorgchem.8b00267] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jae Sun Choi
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
| | - Jinhee Bae
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
| | - Eun Ji Lee
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
| | - Nak Cheon Jeong
- Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science & Technology (DGIST), Daegu 42988, Korea
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11
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Bae J, Lee EJ, Jeong NC. Metal coordination and metal activation abilities of commonly unreactive chloromethanes toward metal–organic frameworks. Chem Commun (Camb) 2018; 54:6458-6471. [DOI: 10.1039/c8cc02348d] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The commonly inert chloromethanes, dichloromethane and trichloromethane, can exchange other solvents bonded at open coordination sites in metal–organic frameworks, providing a new route to activate the open coordination sites for subsequent use in applications.
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Affiliation(s)
- Jinhee Bae
- Department of Emerging Materials Science
- Daegu Gyeongbuk Institute of Science & Technology (DGIST)
- Daegu 42988
- Korea
| | - Eun Ji Lee
- Department of Emerging Materials Science
- Daegu Gyeongbuk Institute of Science & Technology (DGIST)
- Daegu 42988
- Korea
| | - Nak Cheon Jeong
- Department of Emerging Materials Science
- Daegu Gyeongbuk Institute of Science & Technology (DGIST)
- Daegu 42988
- Korea
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12
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Peryshkov DV, Strauss SH. Exceptional Structural Compliance of the B12F122– Superweak Anion. Inorg Chem 2017; 56:4072-4083. [DOI: 10.1021/acs.inorgchem.7b00051] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dmitry V. Peryshkov
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
- Department
of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Steven H. Strauss
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, United States
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13
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Sipos G, Gao P, Foster D, Skelton BW, Sobolev AN, Dorta R. In-Depth Study on Chloride Abstractions from (NHC)Ir(COD)Cl Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00864] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gellért Sipos
- School
of Chemistry and Biochemistry, University of Western Australia, M310, 35 Stirling Highway, 6009 Perth, Western Australia, Australia
| | - Pengchao Gao
- School
of Chemistry and Biochemistry, University of Western Australia, M310, 35 Stirling Highway, 6009 Perth, Western Australia, Australia
| | - Daven Foster
- School
of Chemistry and Biochemistry, University of Western Australia, M310, 35 Stirling Highway, 6009 Perth, Western Australia, Australia
| | - Brian W. Skelton
- Centre
for Microscopy, Characterisation and Analysis, University of Western Australia, 35 Stirling Highway, 6009 Perth, Western Australia, Australia
| | - Alexandre N. Sobolev
- Centre
for Microscopy, Characterisation and Analysis, University of Western Australia, 35 Stirling Highway, 6009 Perth, Western Australia, Australia
| | - Reto Dorta
- School
of Chemistry and Biochemistry, University of Western Australia, M310, 35 Stirling Highway, 6009 Perth, Western Australia, Australia
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14
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Anand M, Sunoj RB, Schaefer HF. Palladium–Silver Cooperativity in an Aryl Amination Reaction through C–H Functionalization. ACS Catal 2015. [DOI: 10.1021/acscatal.5b02639] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Megha Anand
- Center
for Computational Quantum Chemistry, University of Georgia , Athens, Georgia 30602, United States
| | - Raghavan B. Sunoj
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Henry F. Schaefer
- Center
for Computational Quantum Chemistry, University of Georgia , Athens, Georgia 30602, United States
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15
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DeBackere JR, Mercier HPA, Schrobilgen GJ. Thiazyl Trifluoride (NSF3) Adducts and Imidodifluorosulfate (F2OSN-) Derivatives of Hg(OTeF5)2. Inorg Chem 2015; 54:9989-10000. [PMID: 26413855 DOI: 10.1021/acs.inorgchem.5b01769] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reactions of Hg(OTeF5)2 with excess amounts of NSF3 at 0 °C result in the formation of NSF3 adducts having the compositions [Hg(OTeF5)2·N≡SF3]∞ (1), [Hg(OTeF5)2·2N≡SF3]2 (2), and Hg3(OTeF5)6·4N≡SF3 (3). When the reactions are carried out at room temperature, oxygen/fluorine metatheses occur yielding the F2OSN- derivatives [Hg(OTeF5)(N═SOF2)·N≡SF3]∞ (4) and [Hg3(OTeF5)5(N═SOF2)·2N≡SF3]2 (5). The proposed reaction pathway leading to F2OSN- group formation occurs by nucleophilic attack by a F5TeO- group at the sulfur(VI) atom of NSF3, followed by TeF6 elimination. Tellurium hexafluoride formation was confirmed by (19)F NMR spectroscopy. The NSF3 molecules are terminally N-coordinated to mercury, whereas the F2OSN- ligands are N-bridged to two mercury atoms. The compound series was characterized by low-temperature single-crystal X-ray diffraction and low-temperature Raman spectroscopy. Several structural motifs are observed within this structurally diverse series. These include the infinite chain structures of the related compounds, 1 and 4; 2, a dimeric structure which possesses an (HgO(μ))2 ring at its core; 3, a structure based on a cage comprised of a (HgO(μ))3 ring that is capped on each face by μ(3)-oxygen bridged F5TeO- groups; and 5, a dimeric structure possessing two distorted (Hg3O2N) rings that are formally derived from 3 by replacement of a F5TeO- group by a F2OSN- group in each ring. Quantum-chemical calculations were carried out to gain insight into the bonding of the μ(3)-oxygen bridged teflate groups observed in structure 3. Compounds 1-5 represent a novel class of neutral transition metal complexes with NSF3, providing the first examples of NSF3 coordination to mercury. Compounds 4 and 5 also provide the only examples of F2OSN- derivatives of mercury that have been characterized by single-crystal X-ray diffraction.
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Affiliation(s)
- John R DeBackere
- Department of Chemistry, McMaster University , Hamilton, Ontario L8S 4M1, Canada
| | - Hélène P A Mercier
- Department of Chemistry, McMaster University , Hamilton, Ontario L8S 4M1, Canada
| | - Gary J Schrobilgen
- Department of Chemistry, McMaster University , Hamilton, Ontario L8S 4M1, Canada
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16
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Kim HK, Yun WS, Kim MB, Kim JY, Bae YS, Lee J, Jeong NC. A Chemical Route to Activation of Open Metal Sites in the Copper-Based Metal–Organic Framework Materials HKUST-1 and Cu-MOF-2. J Am Chem Soc 2015. [DOI: 10.1021/jacs.5b06637] [Citation(s) in RCA: 155] [Impact Index Per Article: 17.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Hong Ki Kim
- Department
of Emerging Materials Science, DGIST, Daegu 711-873, Korea
| | - Won Seok Yun
- Department
of Emerging Materials Science, DGIST, Daegu 711-873, Korea
| | - Min-Bum Kim
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
| | - Jeung Yoon Kim
- Department
of Emerging Materials Science, DGIST, Daegu 711-873, Korea
| | - Youn-Sang Bae
- Department
of Chemical and Biomolecular Engineering, Yonsei University, Seoul 120-749, Korea
| | - JaeDong Lee
- Department
of Emerging Materials Science, DGIST, Daegu 711-873, Korea
| | - Nak Cheon Jeong
- Department
of Emerging Materials Science, DGIST, Daegu 711-873, Korea
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17
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DeBackere JR, Mercier HPA, Schrobilgen GJ. Pentafluoro-oxotellurate(VI) anions of mercury(II); syntheses and structures of [Hg(OTeF5)4](2-), [Hg(OTeF5)5](3-), [Hg2(OTeF5)6](2-), [Hg(OTeF5)4](2-)·Hg(OTeF5)2, and [Hg2(OTeF5)7](3-)·Hg(OTeF5)2. Inorg Chem 2015; 54:1606-26. [PMID: 25608035 DOI: 10.1021/ic502602p] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mercury(II) anions derived from the F5TeO- (teflate) group were synthesized and structurally characterized. The salts, [N(CH2CH3)4]2[Hg(OTeF5)4], [N(CH3)4]3[Hg(OTeF5)5], [N(CH2CH3)4]3[Hg(OTeF5)5], [N(CH3)4]2[Hg2(OTeF5)6], Cs2[Hg(OTeF5)4]·Hg(OTeF5)2, and {Cs3[Hg2(OTeF5)7]·Hg(OTeF5)2}·4SO2ClF, were obtained by reaction of Hg(OTeF5)2 with [M][OTeF5] (M = [N(CH3)4](+), [N(CH2CH3)4](+), Cs(+)) and were characterized by low-temperature single-crystal X-ray diffraction and low-temperature Raman spectroscopy. Unlike in the extensively fluorine-bridged solid-state structures of [HgF3](-) and [HgF4](2-), the less basic and more sterically demanding teflate ligands of the Hg(II) anions show less tendency to bridge. The anions exhibit a variety of structural motifs, ranging from well-isolated tetrahedral [Hg(OTeF5)4](2-) and square-pyramidal [Hg(OTeF5)5](3-) to the chain structures, [Hg2(OTeF5)6](2-) and [Hg2(OTeF5)7](3-)·Hg(OTeF5)2. The geometrical parameters and vibrational frequencies of [Hg(OTeF5)4](2-) (S4), [Hg(OTeF5)5](3-) (C1), and [Hg2(OTeF5)6](2-) (D2) anions, as well as the hypothetical [Hg3(OTeF5)8](2-) (C1) anion, were calculated using density functional theory methods (PBE1PBE/def2-TZVPP), which aided in the assignment of the Raman spectra of [Hg(OTeF5)4](2-), [Hg(OTeF5)5](3-), [Hg2(OTeF5)6](2-), and Cs2[Hg(OTeF5)4]·Hg(OTeF5)2. The calculated geometries were used to assess the effects of solid-state interionic interactions on the anion geometries. For the most part, the gross gas-phase trigonal bipyramidal (tbp) geometry of [Hg(OTeF5)5](3-) adheres to the predicted VSEPR geometry but contrasts with the solid-state anion structures, which have square-pyramidal geometries or geometries that lie between square pyramidal- and tbp-geometries. However, the bond length order calculated for the Hg-O bonds of tbp-[Hg(OTeF5)5](3-), Hg-Oeq > Hg-Oax, is opposite to that predicted by the VSEPR model of molecular geometry. Natural bond orbital analyses provided the associated Mayer bond orders, Mayer valencies, and natural population analysis charges.
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Affiliation(s)
- John R DeBackere
- Department of Chemistry, McMaster University , Hamilton, Ontario L8S 4M1, Canada
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18
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Monacelli F, Viola E. The reaction of μ-oxo-bis(phthalocyaninato)iron(III) with hydrogen sulphide in the presence of pyridine: Evidence for axial coordination of dichloromethane. J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s1088424605000265] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The oxo-bridged complex ( py ) FePc - O - FePc ( py ) ( py = pyridine , Pc = phthalocyaninato dianion) reacts in dichloromethane with hydrogen sulphide giving elementary sulphur and the reduced ( py )2( FePc ) complex in the stoichiometric ratio 1:1. Under excess py and H2S , the reaction is first-order and the rate constant at a given py concentration is an increasing function of the reducing agent concentration, with asymptotic tendency to a limiting value. This latter depends on the pyridine concentration being higher the lower is the base concentration. When the reaction is carried out in pure pyridine, the rate constant is, instead, a strictly linear function of [ H2S ], with zero intercept. A reaction mechanism is proposed where the dichloromethane is directly involved in the axial coordination about the iron centers and H2S competes efficiently with both pyridine and solvent.
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Affiliation(s)
- Fabrizio Monacelli
- Chemistry Department, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy
| | - Elisa Viola
- Chemistry Department, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Rome, Italy
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Monacelli F, Viola E. The reaction of [bispyridinotetrakis(t-butyl)phthalocyaninato]iron(II) with dioxygen to give μ-oxo-bis[tetrakis(t-butyl)phthalocyaninato]iron(III). J PORPHYR PHTHALOCYA 2012. [DOI: 10.1142/s108842460600003x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The reaction of [bispyridinotetrakis(t-butyl)phthalocyaninato]iron(II), ( py )2 FePc t, with dioxygen in CH 2 Cl 2, gives almost quantitatively the oxo-bridged μ-oxo-bis[tetrakis(t-butyl)phthalocyaninato]iron(III) as the final, stable product. The reaction order with respect to the starting complex changes within a run. For t = 0, the rate is proportional to the ratio [Formula: see text] (Equation 1) where y0 is the initial absorbance of the solution and a1 and a2 are linear functions of [O2]. For t > 0, the instantaneous rate is instead described by the equation Rate = b [O2][A]/([A]0 - [A]) (Equation 2), where A is ( py )2 FePc t and the coefficient b is again proportional to [ O 2]. A mechanism is proposed implying the presence of trace amounts of ( py )(S) FePc t (S = axially bound CH 2 Cl 2) in equilibrium with ( py )2 FePc t. Both species are able to generate the transient pentacoordinate ( py ) FePc t that may react with py and S, giving back the hexacoordinate precursors, or with dioxygen, giving ultimately the μ-oxo complex. At t = 0, the species ( py )(S) FePc t, expected to be much more labile than ( py )2 FePc t, is at its maximum concentration and is assumed to give the prevaling contribution to the instantaneous rate. As the reaction proceeds, and free pyridine accumulates in the solution, the concentration of ( py )(S) FePc t decreases rapidly and the transient ( py ) FePc t is produced essentially by the bispyridino complex. This fact and the still growing concentration of free pyridine account for the Equation 2. Finally, when the py concentration is buffered by addition of small amounts of base, the reaction attains a simple first order law. Present data further support the iron(III) formulation of the final μ-oxo product and are inconsistent with the iron(II) hypothesis put forward by some authors.
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Affiliation(s)
- Fabrizio Monacelli
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Elisa Viola
- Dipartimento di Chimica, Università di Roma “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
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20
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Wang Z, Zhu L, Yin F, Su Z, Li Z, Li C. Silver-Catalyzed Decarboxylative Chlorination of Aliphatic Carboxylic Acids. J Am Chem Soc 2012; 134:4258-63. [DOI: 10.1021/ja210361z] [Citation(s) in RCA: 207] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhentao Wang
- Department of Chemistry, University of Science and Technology of China, Hefei,
Anhui 230026, People’s Republic of China
| | - Lin Zhu
- Department of Chemistry, University of Science and Technology of China, Hefei,
Anhui 230026, People’s Republic of China
| | - Feng Yin
- Department of Chemistry, University of Science and Technology of China, Hefei,
Anhui 230026, People’s Republic of China
| | - Zhongquan Su
- Key Laboratory of Synthetic
Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, People’s Republic of China
| | - Zhaodong Li
- Key Laboratory of Synthetic
Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, People’s Republic of China
| | - Chaozhong Li
- Key Laboratory of Synthetic
Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, People’s Republic of China
- Department of Chemistry, University of Science and Technology of China, Hefei,
Anhui 230026, People’s Republic of China
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21
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Hofer M, Nevado C. Unexpected Outcomes of the Oxidation of (Pentafluorophenyl)triphenylphosphanegold(I). Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100956] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Silver(I)-organic networks constructed with flexible silver-ethynide supramolecular synthon o-, m-, p-Cl–C6H5OCH2CC⊃Agn (n = 4, 5). J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Rocks SS, Brennessel WW, Machonkin TE, Holland PL. Solution and Structural Characterization of Iron(II) Complexes with Ortho-Halogenated Phenolates: Insights Into Potential Substrate Binding Modes in Hydroquinone Dioxygenases. Inorg Chem 2010; 49:10914-29. [DOI: 10.1021/ic101377u] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sara S. Rocks
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - William W. Brennessel
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Timothy E. Machonkin
- Department of Chemistry, Whitman College, Walla Walla, Washington 99362, United States
| | - Patrick L. Holland
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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24
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Cheng TY, Szalda DJ, Franz JA, Morris Bullock R. Structural and computational studies of Cp(CO)2(PCy3)MoFBF3, a complex with a bound ligand. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2009.02.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Dub P, Belkova N, Filippov O, Daran JC, Epstein L, Lledós A, Shubina E, Poli R. Solvent-Dependent Dihydrogen/Dihydride Stability for [Mo(CO)(Cp*)H2(PMe3)2]+[BF4]âDetermined by Multiple Solventâ
â
â
Anionâ
â
â
Cation Non-Covalent Interactions. Chemistry 2010; 16:189-201. [DOI: 10.1002/chem.200901613] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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26
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Wang SMJ, Zhao L, Mak TCW. Coordination networks constructed with the multinuclear silver–ethynide supramolecular synthon 4-nitrophenyl–CC⊃Agn(n = 3, 4, 5). Dalton Trans 2010; 39:2108-21. [DOI: 10.1039/b917789b] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Wang SM, Mak TC. Coordination networks constructed with supramolecular synthon RX–CC⊃Agn (n=4, 5; RX=halophenyl). Polyhedron 2009. [DOI: 10.1016/j.poly.2009.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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28
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Decken A, Knapp C, Nikiforov G, Passmore J, Rautiainen J, Wang X, Zeng X. Silver(I) Complexes of the Weakly Coordinating Solvents SO2and CH2Cl2: Crystal Structures, Bonding, and Energetics of [Ag(OSO)][Al{OC(CF3)3}4], [Ag(OSO)2/2][SbF6], and [Ag(CH2Cl2)2][SbF6]. Chemistry 2009; 15:6504-17. [DOI: 10.1002/chem.200802498] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Menjón B, Martínez-Salvador S, Gómez-Saso M, Forniés J, Falvello L, Martín A, Tsipis A. Oxidative Addition of Halogens to Homoleptic Perfluoromethyl or Perfluorophenyl Derivatives of Platinum(II): A Comparative Study. Chemistry 2009; 15:6371-82. [DOI: 10.1002/chem.200900323] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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30
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Zang SQ, Cheng PS, Mak TCW. Silver⋯X–aryl (X = I and Br) interaction in a network assembly with a flexible polynuclear silver–ethynide supramolecular synthon. CrystEngComm 2009. [DOI: 10.1039/b900308h] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Cheng TY, Szalda DJ, Hanson JC, Muckerman JT, Bullock RM. Four-Electron-Donor Hemilabile η3-PPh3 Ligand that Binds through a C═C Bond Rather than an Agostic C−H Interaction, and Displacement of the C═C by Methyl Iodide or Water. Organometallics 2008. [DOI: 10.1021/om800401d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tan-Yun Cheng
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000, and Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
| | - David J. Szalda
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000, and Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
| | - Jonathan C. Hanson
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000, and Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
| | - James T. Muckerman
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000, and Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
| | - R. Morris Bullock
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000, and Chemical Sciences Division, Pacific Northwest National Laboratory, P.O. Box 999, K2-57, Richland, Washington 99352
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32
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Wulfsberg G, Kravchenko E, Morgunov V, Miller S, Anderson O, Barnes T, Briggs R, MacDougall P. Silver dichloroacetate: A compound with weak Ag–Cl bonding interactions and an extraordinary range of 35Cl NQR frequencies. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2007.12.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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33
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Kubas GJ. Fundamentals of H2 Binding and Reactivity on Transition Metals Underlying Hydrogenase Function and H2 Production and Storage. Chem Rev 2007; 107:4152-205. [DOI: 10.1021/cr050197j] [Citation(s) in RCA: 796] [Impact Index Per Article: 46.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Gregory J. Kubas
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
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34
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Cross JB, Vreven T, Meroueh SO, Mobashery S, Schlegel HB. Computational investigation of irreversible inactivation of the zinc-dependent protease carboxypeptidase A. J Phys Chem B 2007; 109:4761-9. [PMID: 16851559 DOI: 10.1021/jp0455172] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Zinc proteases are ubiquitous and the zinc ion plays a central function in the catalytic mechanism of these enzymes. A novel class of mechanism-based inhibitors takes advantage of the zinc ion chemistry in carboxypeptidase A (CPA) to promote covalent attachment of an inhibitor to the carboxylate of Glu-270, resulting in irreversible inhibition of the enzyme. The effect of the active site zinc ion on irreversible inactivation of CPA was probed by molecular orbital (MO) calculations on a series of active site models and the Cl(-) + CH(3)Cl S(N)2 reaction fragment. Point charge models representing the active site reproduced energetics from full MO calculations at 12.0 A separation between the zinc and the central carbon of the S(N)2 reaction, but at 5.0 A polarization played an important role in moderating barrier suppression. ONIOM MO/MO calculations that included the residues within 10 A of the active site zinc suggest that about 75% of the barrier suppression arises from the zinc ion and its ligands. A model of the pre-reactive complex of the 2-benzyl-3-iodopropanoate inactivator with CPA was constructed from the X-ray structure of l-phenyl lactate bound in the active site of the enzyme. The model was fully solvated and minimized by using the AMBER force field to generate the starting structure for the ONIOM QM/MM calculations. Optimization of this structure led to the barrierless S(N)2 displacement of the iodide of the inhibitor by Glu-270, assisted by interaction of the zinc ion with the leaving group. The resulting product is in good agreement with the X-ray structure of the covalently modified enzyme obtained by irreversible inhibition of CPA by 2-benzyl-3-iodopropanoate.
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Affiliation(s)
- Jason B Cross
- Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA
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35
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Bao M, Hayashi T, Shimada S. Cationic Organobismuth Complex with 5,6,7,12-Tetrahydrodibenz[c,f][1,5]azabismocine Framework and Its Coordination Complexes with Neutral Molecules. Organometallics 2007. [DOI: 10.1021/om0611453] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ming Bao
- National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Teruyuki Hayashi
- National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Shigeru Shimada
- National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
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36
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Moxham GL, Brayshaw SK, Weller AS. [Ir(PPh3)2(H)2(ClCH2CH2Cl)][BArF4]: a well characterised transition metal dichloroethane complex. Dalton Trans 2007:1759-61. [PMID: 17471370 DOI: 10.1039/b702399e] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of [Ir(PPh(3))(2)(COD)][BAr(F)(4)] with H(2) in dichloroethane solution results in [Ir(PPh(3))(2)(H)(2)(ClCH(2)CH(2)Cl)][BAr(F)(4)], which has been fully characterised by X-ray crystallography, NMR spectroscopy and ESI-MS. Its activity towards alkene hydrogenation has been compared with analogous CH(2)Cl(2) complexes.
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37
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Holloway CE, Nevin WA, Melnik M. REVIEW: HETEROMETALLIC SILVER COMPOUNDS; CLASSIFICATION AND ANALYSIS OF CRYSTALLOGRAPHIC AND STRUCTURAL DATA. J COORD CHEM 2006. [DOI: 10.1080/00958979408024215] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Clive E. Holloway
- a Department of Chemistry , York University , 4700 Keele St., North York, Ontario, M3J 1P3, Canada
| | - W. Andrew Nevin
- a Department of Chemistry , York University , 4700 Keele St., North York, Ontario, M3J 1P3, Canada
- c Central Research Laboratories, Kaneka Corporation , 2-80, 1-Chome, Yoshida-Cho, Hyogo-Ku, Kobe, Japan , 652
| | - Milan Melnik
- b Department of Inorganic Chemistry , Slovak Technical University , 81237, Bratislava, Slovak Republic
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Holloway CE, Melnik M, Nevin WA, Liu W. SILVER COORDINATION AND ORGANOMETALLIC COMPOUNDS: CLASSIFICATION AND ANALYSIS OF CRYSTALLOGRAPHIC AND STRUCTURAL DATA. J COORD CHEM 2006. [DOI: 10.1080/00958979508033088] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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39
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Sigwalt P, Moreau M. Carbocationic polymerization: Mechanisms and kinetics of propagation reactions. Prog Polym Sci 2006. [DOI: 10.1016/j.progpolymsci.2005.09.003] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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40
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Zhang J, Barakat KA, Cundari TR, Gunnoe TB, Boyle PD, Petersen JL, Day CS. Synthesis of the Five-Coordinate Ruthenium(II) Complexes [(PCP)Ru(CO)(L)][BAr‘4] {PCP = 2,6-(CH2PtBu2)2C6H3, BAr‘4 = 3,5-(CF3)2C6H3, L = η1-ClCH2Cl, η1-N2, or μ-Cl−Ru(PCP)(CO)}: Reactions with Phenyldiazomethane and Phenylacetylene. Inorg Chem 2005; 44:8379-90. [PMID: 16270976 DOI: 10.1021/ic051074k] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of (PCP)Ru(CO)(Cl) (1) with NaBAr'4 yields the bimetallic product [[(PCP)Ru(CO)](2)(mu-Cl)][BAr'4] (2). The monomeric five-coordinate complexes [(PCP)Ru(CO)(eta1-ClCH2Cl)][BAr'4] (3) and [(PCP)Ru(CO)(eta1-N2)][BAr'4] (4) are synthesized upon reaction of (PCP)Ru(CO)(OTf) (6) with NaBAr'4 in CH2Cl2 or C6H5F, respectively. The solid-state structures of 2, 3, and 4 have been determined by X-ray diffraction studies of single crystals. The reaction of 3 with PhCHN2 or PhCCH affords carbon-carbon coupling products involving the aryl group of the PCP ligand in transformations that likely proceed via the formation of Ru carbene or vinylidene intermediates. Density functional theory and hybrid quantum mechanics/molecular mechanics calculations were performed to investigate the bonding of weak bases to the 14-electron fragment [(PCP)Ru(CO)]+ and the energetics of different isomers of the product carbene and vinylidene complexes.
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Affiliation(s)
- Jubo Zhang
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, USA
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41
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B–C activation in highly alkylated carborane monoanions partnered with cationic transition metal fragments: observations and comments. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2004.09.048] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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42
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Vij A, Wilson WW, Vij V, Corley RC, Tham FS, Gerken M, Haiges R, Schneider S, Schroer T, Wagner RI. Methyl Tin(IV) Derivatives of HOTeF5 and HN(SO2CF3)2: A Solution Multinuclear NMR Study and the X-ray Crystal Structures of (CH3)2SnCl(OTeF5) and [(CH3)3Sn(H2O)2][N(SO2CF3)2]. Inorg Chem 2004; 43:3189-99. [PMID: 15132626 DOI: 10.1021/ic049785q] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The new tin(IV) species (CH(3))(2)SnCl(OTeF(5)) was prepared via either the solvolysis of (CH(3))(3)SnCl in HOTeF(5) or the reaction of (CH(3))(3)SnCl with ClOTeF(5). It was characterized by NMR and vibrational spectroscopy, mass spectrometry, and single crystal X-ray diffraction. (CH(3))(2)SnCl(OTeF(5)) crystallizes in the monoclinic space group P2(1)/n (a = 5.8204(8) A, b =10.782(1) A, c =15.493(2) A, beta = 91.958(2) degrees, V = 971.7(2) A(3), Z = 4). NMR spectroscopy of (CH(3))(3)SnX, prepared from excess Sn(CH(3))(4) and HX (X = OTeF(5) or N(SO(2)CF(3))(2)), revealed a tetracoordinate tin environment using (CH(3))(3)SnX as a neat liquid or in dichloromethane-d(2) (CD(2)Cl(2)) solutions. In acetone-d(6) and acetonitrile-d(3) (CD(3)CN) solutions, the tin atom in (CH(3))(3)SnOTeF(5) was found to extend its coordination number to five by adding one solvent molecule. In the strong donor solvent DMSO, the Sn-OTeF(5) bond is broken and the (CH(3))(3)Sn(O=S(CH(3))(2))(2)(+) cation and the OTeF(5)(-) anion are formed. (CH(3))(3)SnOTeF(5) and (CH(3))(3)SnN(SO(2)CF(3))(2) react differently with water. While the Te-F bonds in the OTeF(5) group of (CH(3))(3)SnOTeF(5) undergo complete hydrolysis that results in the formation of [(CH(3))(3)Sn(H(2)O)(2)](2)SiF(6), (CH(3))(3)SnN(SO(2)CF(3))(2) forms the stable hydrate salt [(CH(3))(3)Sn(H(2)O)(2)][N(SO(2)CF(3))(2)]. This salt crystallizes in the monoclinic space group P2(1)/c (a = 7.3072(1) A, b =13.4649(2) A, c =16.821(2) A, beta = 98.705(1) degrees, V = 1636.00(3) A(3), Z = 4) and was also characterized by NMR and vibrational spectroscopy.
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Affiliation(s)
- Ashwani Vij
- Air Force Research Laboratory/PRSP and ERC Incorporated, Space and Missile Propulsion Division, Edwards Air Force Base, California 93524, USA.
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KUBAS GREGORYJ. HETEROLYTIC SPLITTING OF HH, SiH, AND OTHER σ BONDS ON ELECTROPHILIC METAL CENTERS. ADVANCES IN INORGANIC CHEMISTRY 2004. [DOI: 10.1016/s0898-8838(04)56005-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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44
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Patmore NJ, Ingleson MJ, Mahon MF, Weller AS. Investigation of the synthesis of {Mo(η5-C5H5)(CO)3}+fragments partnered with the monoanionic carboranes [closo-CB11H11Br]−, [closo-CB11H6Br6]−and [closo-HCB11Me11]−by silver salt metathesis and hydride abstraction. Dalton Trans 2003. [DOI: 10.1039/b303537a] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Cheng TY, Bullock RM. Hydride Transfer from (η5-C5Me5)(CO)2MH (M = Fe, Ru, Os) to Trityl Cation: Different Products from Different Metals and the Kinetics of Hydride Transfer. Organometallics 2002. [DOI: 10.1021/om020012o] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Tan-Yun Cheng
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
| | - R. Morris Bullock
- Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973-5000
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Carpentier JF, Wu Z, Lee CW, Strömberg S, Christopher JN, Jordan RF. d0 Metal Olefin Complexes. Synthesis, Structures, and Dynamic Properties of (C5R5)2Zr(OCMe2CH2CH2CHCH2)+ Complexes: Models for the Elusive (C5R5)2Zr(R)(Olefin)+ Intermediates in Metallocene-Based Olefin Polymerization Catalysis. J Am Chem Soc 2000. [DOI: 10.1021/ja000989p] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jean-François Carpentier
- Contribution from the Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Zhe Wu
- Contribution from the Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Chul Woo Lee
- Contribution from the Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Staffan Strömberg
- Contribution from the Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Joseph N. Christopher
- Contribution from the Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
| | - Richard F. Jordan
- Contribution from the Department of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637
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Gerken M, Kolb P, Wegner A, Mercier HP, Borrmann H, Dixon DA, Schrobilgen GJ. Tetrachloro- and tetrabromoarsonium(V) cations: raman and 75As, 19F NMR spectroscopic characterization and X-ray crystal structures of [AsCl4][As(OTeF5)6] and [AsBr4][AsF(OTeF5)5] . Inorg Chem 2000; 39:2813-24. [PMID: 11232818 DOI: 10.1021/ic000118g] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The salts [AsX4][As(OTeF5)6] and [AsBr4][AsF(OTeF5)5] (X = Cl, Br) have been prepared by oxidation of AsX3 with XOTeF5 in the presence of the OTeF5 acceptors As(OTeF5)5 and AsF(OTeF5)4. The mixed salts [AsCl4][Sb(OTeF5)6-nCl(n-2)] and [AsCl4][Sb(OTeF5)6-nCl(n)] (n > or = 2) have also been prepared. The AsBr4+ cation has been fully structurally characterized for the first time in SO2ClF solution by 75As NMR spectroscopy and in the solid state by a single-crystal X-ray diffraction study of [AsBr4][AsF(OTeFs)5]: P1, a = 9.778(4) A, b = 17.731(7) A, c = 18.870(8) A, alpha = 103.53(4)degrees, beta = 103.53(4) degrees, gamma = 105.10(4) degrees, V = 2915(2) A3, Z = 4, and R1 = 0.0368 at -183 degrees C. The crystal structure determination and solution 75As NMR study of the related [AsCl4][As(OTeF5)6] salt have also been carried out: [AsCl4][As(OTeF5)6], R3, a = 9.8741(14) A, c = 55.301(11) A, V= 4669(1) A3, Z = 6, and R1 = 0.0438 at -123 degrees C; and R3, a = 19.688(3) A, c = 55.264(11) A, V= 18552(5) A3, Z = 24, and R1 = 0.1341 at -183 degrees C. The crystal structure of the As(OTeF5)6- salt reveals weaker interactions between the anion and cation than in the previously known AsF6- salt. The AsF(OTeF5)5- anion is reported for the first time and is also weakly coordinating with respect to the AsBr4+ cation. Both cations are undistorted tetrahedra with bond lengths of 2.041(5)-2.056(3) A for AsCl4+ and 2.225(2)-2.236(2) A for AsBr4+. The Raman spectra are consistent with undistorted AsX4+ tetrahedra and have been assigned under Td point symmetry. The 35Cl/37Cl isotope shifts have been observed and assigned for AsCl4+, and the geometrical parameters and vibrational frequencies of all known and presently unknown PnX4+ (Pn = P, As, Sb, Bi; X = F, Cl, Br, I) cations have been calculated using density functional theory methods.
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Affiliation(s)
- M Gerken
- Department of Chemistry, McMaster University, Hamilton, Ontario, Canada
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Higgins SJ, Stuart CA, Mills A. Silver(I)-mediated isomerisation of trans-[RuCl2(P-P)2] (P-P=4-membered ring chelate diphosphine ligand) and its application in the syntheses of [RuCl(L)(P-P)2]+ (L=neutral ligand). INORG CHEM COMMUN 2000. [DOI: 10.1016/s1387-7003(00)00055-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Dinger MB, Scott MJ. Alkali salts of C3-symmetric, linked aryloxides: selective binding of substrates with metal aggregates. Inorg Chem 2000; 39:1238-54. [PMID: 12526416 DOI: 10.1021/ic991309q] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The lithium, sodium, and potassium salts of tris(3,5-dialkyl-2-hydroxyphenyl)methanes (tert-butyl, tert-pentyl, methyl) have been prepared by reaction of the triarylmethane with n-butyllithium, sodium hydride, and potassium hydride, respectively. These compounds are all hexanuclear aggregates composed of two triarylmethane units. Whereas the lithium salt is compact and cannot bind oxygen-donor solvent molecules, the sodium and potassium systems have vacant coordination sites that can interact with solvents. For the sodium compounds, the solvent can be subsequently removed, and the resulting coordinatively unsaturated compounds have been shown to selectively bind oxygen-donor substrates (ethers, aldehydes, and ketones) of suitable size and shape. The paper reports the synthesis and characterization of these novel compounds, including thirteen crystal structures of the salts and their adducts.
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Affiliation(s)
- M B Dinger
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200, USA
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