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A third polymorph of the zwitterionic complex trichlorido-((dimethylphosphoryl)methanaminium-κ O)zinc(II). ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2023. [DOI: 10.1515/znb-2023-0308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Abstract
By the reaction of (dimethylphosphoryl)methanamine (dpma) with one equivalent of zinc(II) chloride in a concentrated hydrochloric acid solution and subsequent slow evaporation of the solvent, the title compound (dpmaH)ZnCl3 was obtained in quantitative yield. The primary reaction product mainly consists of larger brick-shaped colorless and smaller cuboide colorless crystals. Long-time storage over several months of these crystals in the mother liquor yielded a third polymorph (P21/n; a = 9.6639(1); b = 10.0271(1); c = 11.2446(1) Å; β = 98.964(1)°) of this compound. Similar to the two other modifications, its crystal structure consists of a zwitterionic dpmaHZnCl3 complex containing the cationic dpmaH+ ligand, which coordinates the zinc atom through its oxygen atom. Hydrogen bonds connect neighboring zwitterionic complexes to a layered structure. The motif of a hydrogen bonded dimer, similar to that found in the chain structure of polymorph I, is also present, but in the title structure these dimers form hydrogen bonds in two dimensions.
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2
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Blackman AG, Jelley RE, Krenske EH, Gahan LR, Bernhardt PV. Does H 3O + Really Act as a Ligand in the Solid State? Inorg Chem 2021; 60:13071-13079. [PMID: 34424671 DOI: 10.1021/acs.inorgchem.1c01485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The evidence for the existence of metal complexes containing H3O+ as a ligand in the solid state is examined. Each of the 68 examples in the Cambridge Structural Database in which H3O+ is bound to a transition metal, lanthanoid, actinoid, or main group metal ion is detailed and critically appraised. It is concluded that none of the reported examples of complexes containing coordinated H3O+ have been unequivocally characterized and that they result from either curation errors or misinterpretations of the crystallographic data. These conclusions are supported by computational techniques, which show that three purported H3O+ complexes based on the 1,4,7,10,13,16,21,24-octa-azabicyclo(8.8.8)hexacosane azacryptand skeleton are better described as aqua complexes, with protonation occurring at the amine ligand.
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Affiliation(s)
- Allan G Blackman
- Department of Chemistry, Centre for Biomedical and Chemical Sciences, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
| | - Rebecca E Jelley
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Elizabeth H Krenske
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Lawrence R Gahan
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
| | - Paul V Bernhardt
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland 4072, Australia
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García-Raso A, Terrón A, Balle B, López-Zafra A, Frontera A, Barceló-Oliver M, Fiol JJ. Crystal structures of N6-modified-amino acid nucleobase analogs( iii): adenine–valeric acid, adenine–hexanoic acid and adenine–gabapentine. NEW J CHEM 2020. [DOI: 10.1039/d0nj02538k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
H-bonding networks, anion–π and π–π interactions in the crystal structures of N6-modified-amino acid adenine analogs are investigated by means of DFT calculations and X-ray crystallography analysis.
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Affiliation(s)
- Angel García-Raso
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Angel Terrón
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Bartomeu Balle
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Adela López-Zafra
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | | | - Juan J. Fiol
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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García-Raso A, Terrón A, López-Zafra A, García-Viada A, Barta A, Frontera A, Lorenzo J, Rodríguez-Calado S, Vázquez-López EM, Fiol JJ. Crystal structures of N6-modified-amino acid related nucleobase analogs (II): hybrid adenine-β-alanine and adenine-GABA molecules. NEW J CHEM 2019. [DOI: 10.1039/c9nj02279a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
H-Bonding networks and anion–π interactions in the crystal structures of N6-modified-amino acid adenine analogs are investigated using X-ray crystallography and DFT calculations.
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Affiliation(s)
- Angel García-Raso
- Departament de Química
- Universitat de les Illes Balears
- Crta. de Valldemossa km 7.5
- 07122 Palma (Baleares)
- Spain
| | - Angel Terrón
- Departament de Química
- Universitat de les Illes Balears
- Crta. de Valldemossa km 7.5
- 07122 Palma (Baleares)
- Spain
| | - Adela López-Zafra
- Departament de Química
- Universitat de les Illes Balears
- Crta. de Valldemossa km 7.5
- 07122 Palma (Baleares)
- Spain
| | | | - Agostina Barta
- Departament de Química
- Universitat de les Illes Balears
- Crta. de Valldemossa km 7.5
- 07122 Palma (Baleares)
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- Crta. de Valldemossa km 7.5
- 07122 Palma (Baleares)
- Spain
| | - Julia Lorenzo
- Instituto de Biotecnología y Biomedicina
- Departamento de Bioquímica y Biologia Molecular
- Universidad Autónoma de Barcelona
- Barcelona
- Spain
| | - Sergi Rodríguez-Calado
- Instituto de Biotecnología y Biomedicina
- Departamento de Bioquímica y Biologia Molecular
- Universidad Autónoma de Barcelona
- Barcelona
- Spain
| | - Ezequiel M. Vázquez-López
- Instituto de Investigación Sanitaria Galicia Sur/Universidade de Vigo
- Departamento de Química Inorgánica
- Facultade de Química
- Edificio Ciencias Experimentais
- E-36310 Vigo
| | - Juan J. Fiol
- Departament de Química
- Universitat de les Illes Balears
- Crta. de Valldemossa km 7.5
- 07122 Palma (Baleares)
- Spain
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Karthikeyan A, Zeller M, Thomas Muthiah P. Supramolecular architectures in metal(II) (Cd/Zn) halide/nitrate complexes of cytosine/5-fluorocytosine. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:789-796. [PMID: 29973418 DOI: 10.1107/s2053229618007672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 05/23/2018] [Indexed: 11/10/2022]
Abstract
Three new metal(II)-cytosine (Cy)/5-fluorocytosine (5FC) complexes, namely bis(4-amino-1,2-dihydropyrimidin-2-one-κN3)diiodidocadmium(II) or bis(cytosine)diiodidocadmium(II), [CdI2(C4H5N3O)2], (I), bis(4-amino-1,2-dihydropyrimidin-2-one-κN3)bis(nitrato-κ2O,O')cadmium(II) or bis(cytosine)bis(nitrato)cadmium(II), [Cd(NO3)2(C4H5N3O)2], (II), and (6-amino-5-fluoro-1,2-dihydropyrimidin-2-one-κN3)aquadibromidozinc(II)-6-amino-5-fluoro-1,2-dihydropyrimidin-2-one (1/1) or (6-amino-5-fluorocytosine)aquadibromidozinc(II)-4-amino-5-fluorocytosine (1/1), [ZnBr2(C4H5FN3O)(H2O)]·C4H5FN3O, (III), have been synthesized and characterized by single-crystal X-ray diffraction. In complex (I), the CdII ion is coordinated to two iodide ions and the endocyclic N atoms of the two cytosine molecules, leading to a distorted tetrahedral geometry. The structure is isotypic with [CdBr2(C4H5N3O)2] [Muthiah et al. (2001). Acta Cryst. E57, m558-m560]. In compound (II), each of the two cytosine molecules coordinates to the CdII ion in a bidentate chelating mode via the endocyclic N atom and the O atom. Each of the two nitrate ions also coordinates in a bidentate chelating mode, forming a bicapped distorted octahedral geometry around cadmium. The typical interligand N-H...O hydrogen bond involving two cytosine molecules is also present. In compound (III), one zinc-coordinated 5FC ligand is cocrystallized with another uncoordinated 5FC molecule. The ZnII atom coordinates to the N(1) atom (systematic numbering) of 5FC, displacing the proton to the N(3) position. This N(3)-H tautomer of 5FC mimics N(3)-protonated cytosine in forming a base pair (via three hydrogen bonds) with 5FC in the lattice, generating two fused R22(8) motifs. The distorted tetrahedral geometry around zinc is completed by two bromide ions and a water molecule. The coordinated and nonccordinated 5FCs are stacked over one another along the a-axis direction, forming the rungs of a ladder motif, whereas Zn-Br bonds and N-H...Br hydrogen bonds form the rails of the ladder. The coordinated water molecules bridge the two types of 5FC molecules via O-H...O hydrogen bonds. The cytosine molecules are coordinated directly to the metal ion in each of the complexes and are hydrogen bonded to the bromide, iodide or nitrate ions. In compound (III), the uncoordinated 5FC molecule pairs with the coordinated 5FC ligand through three hydrogen bonds. The crystal structures are further stabilized by N-H...O, N-H...N, O-H...O, N-H...I and N-H...Br hydrogen bonds, and stacking interactions.
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Affiliation(s)
- Ammasai Karthikeyan
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620 024, Tamilnadu, India
| | - Matthias Zeller
- Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN 47907, USA
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García-Raso A, Terrón A, Bauzá A, Frontera A, Molina JJ, Vázquez-López EM, Fiol JJ. Crystal structures of N6-modified-aminoacid/peptide nucleobase analogs: hybrid adenine–glycine and adenine–glycylglycine molecules. NEW J CHEM 2018. [DOI: 10.1039/c8nj02147c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Anion–π interactions in crystal structures of N6-modified-aminoacid and dipeptide adenine analogs are investigated using X-ray crystallography and DFT calculations.
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Affiliation(s)
- Angel García-Raso
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
| | - Angel Terrón
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
| | - Jhon J. Molina
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
| | - Ezequiel M. Vázquez-López
- Instituto de Investigación Sanitaria Galicia Sur/Universidade de Vigo
- Departamento de Química Inorgánica
- Facultade de Química
- Edificio Ciencias Experimentais
- E-36310 Vigo
| | - Juan J. Fiol
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
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Mendes RF, Venkatramaiah N, Tomé JPC, Almeida Paz FA. Crystal structure of a compact three-dimensional metal-organic framework based on Cs + and (4,5-di-cyano-1,2-phenyl-ene)bis-(phospho-nic acid). Acta Crystallogr E Crystallogr Commun 2016; 72:1794-1798. [PMID: 27980833 PMCID: PMC5137611 DOI: 10.1107/s2056989016016765] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 10/19/2016] [Indexed: 11/11/2022]
Abstract
A new metal-organic framework compound, poly[[μ7-dihydrogen (4,5-di-cyano-1,2-phenyl-ene)diphospho-nato]-(oxonium)caesium], [Cs(C8H4N2O6P2)(H3O)] n (I), based on Cs+ and the organic linker 4,5-di-cyano-1,2-phenyl-ene)bis-(phospho-nic acid, (H4cpp), containing two distinct coordinating functional groups, has been prepared by a simple diffusion method and its crystal structure is reported. The coordination polymeric structure is based on a CsO8N2 complex unit comprising a monodentate hydro-nium cation, seven O-atom donors from two phospho-nium groups of the (H2cpp)2- ligand, and two N-atom donors from bridging cyano groups. The high level of connectivity from both the metal cation and the organic linker allow the formation of a compact and dense three-dimensional network without any crystallization solvent. Topologically (I) is a seven-connected uninodal network with an overall Schäfli symbol of {417.64}. Metal cations form an undulating inorganic layer, which is linked by strong and highly directional O-H⋯O hydrogen-bonding inter-actions. These metallic layers are, in turn, connected by the organic ligands along the [010] direction to form the overall three-dimensional framework structure.
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Affiliation(s)
- Ricardo F. Mendes
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
| | | | - João P. C. Tomé
- Department of Chemistry, QOPNA, University of Aveiro, 3810-193 Aveiro, Portugal
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Filipe A. Almeida Paz
- Department of Chemistry, CICECO - Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal
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Karthikeyan A, Jeeva Jasmine N, Thomas Muthiah P, Perdih F. Supra-molecular hydrogen-bonding patterns in the N(9)-H protonated and N(7)-H tautomeric form of an N(6) -benzoyl-adenine salt: N (6)-benzoyl-adeninium nitrate. Acta Crystallogr E Crystallogr Commun 2016; 72:140-3. [PMID: 26958373 PMCID: PMC4770981 DOI: 10.1107/s2056989015024871] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2015] [Accepted: 12/29/2015] [Indexed: 11/10/2022]
Abstract
In the title molecular salt, C12H10N5O(+)·NO3 (-), the adenine unit has an N (9)-protonated N(7)-H tautomeric form with non-protonated N(1) and N(3) atoms. The dihedral angle between the adenine ring system and the phenyl ring is 51.10 (10)°. The typical intra-molecular N(7)-H⋯O hydrogen bond with an S(7) graph-set motif is also present. The benzoyl-adeninium cations also form base pairs through N-H⋯O and C-H⋯N hydrogen bonds involving the Watson-Crick face of the adenine ring and the C and O atoms of the benzoyl ring of an adjacent cation, forming a supra-molecular ribbon with R 2 (2)(9) rings. Benzoyl-adeninum cations are also bridged by one of the oxygen atoms of the nitrate anion, which acts as a double acceptor, forming a pair of N-H⋯O hydrogen bonds to generate a second ribbon motif. These ribbons together with π-π stacking inter-actions between the phenyl ring and the five- and six-membered adenine rings of adjacent mol-ecules generate a three-dimensional supra-molecular architecture.
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Affiliation(s)
- Ammasai Karthikeyan
- School of Chemistry, Bharathidasan University, Tiruchirappalli 620024, Tamilnadu, India
| | | | | | - Franc Perdih
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Vecna pot 113, PO Box 537, SI-1000 Ljubljana, Slovenia
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Karthikeyan A, Swinton Darious R, Thomas Muthiah P, Perdih F. Supramolecular hydrogen-bonding patterns in two cocrystals of the N(7)–H tautomeric form ofN6-benzoyladenine:N6-benzoyladenine–3-hydroxypyridinium-2-carboxylate (1/1) andN6-benzoyladenine–DL-tartaric acid (1/1). ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2015; 71:985-90. [DOI: 10.1107/s2053229615018094] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 09/27/2015] [Indexed: 11/11/2022]
Abstract
Two novel cocrystals of the N(7)—H tautomeric form ofN6-benzoyladenine (BA), namelyN6-benzoyladenine–3-hydroxypyridinium-2-carboxylate (3HPA) (1/1), C12H9N5O·C6H5NO3, (I), andN6-benzoyladenine–DL-tartaric acid (TA) (1/1), C12H9N5O·C4H6O6, (II), are reported. In both cocrystals, theN6-benzoyladenine molecule exists as the N(7)—H tautomer, and this tautomeric form is stabilized by intramolecular N—H...O hydrogen bonding between the benzoyl C=O group and the N(7)—H hydrogen on the Hoogsteen site of the purine ring, forming anS(7) motif. The dihedral angle between the adenine and phenyl planes is 0.94 (8)° in (I) and 9.77 (8)° in (II). In (I), the Watson–Crick face of BA (N6—H and N1; purine numbering) interacts with the carboxylate and phenol groups of 3HPA through N—H...O and O—H...N hydrogen bonds, generating a ring-motif heterosynthon [graph setR22(6)]. However, in (II), the Hoogsteen face of BA (benzoyl O atom and N7; purine numbering) interacts with TA (hydroxy and carbonyl O atoms) through N—H...O and O—H...O hydrogen bonds, generating a different heterosynthon [graph setR22(4)]. Both crystal structures are further stabilized by π–π stacking interactions.
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