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Crystal structure of tetra-kis-[?-3-carboxy-1-(1,2,4-triazol-4-yl)adamantane-?2 N 1:N 2]tetra-fluoridodi-?2-oxido-dioxidodisilver(I)divanadium(V) tetra-hydrate.

ABSTRACT: The crystal structure of the title mol-ecular complex, [Ag2{VO2F2}2(C13H17N3O2)4]·4H2O, supported by the heterofunctional ligand tr-ad-COOH [1-(1,2,4-triazol-4-yl)-3-carb-oxy-adamantane] is reported. Four 1,2,4-triazole groups of the ligand link two AgI atoms, as well as AgI and VV centres, forming the heterobimetallic coordination cluster {AgI 2(VVO2F2)2(tr)4}. VV exists as a vanadium oxofluoride anion and possesses a distorted trigonal-bipyramidal coordination environment [VO2F2N]. A carb-oxy-lic acid functional group of the ligand stays in a neutral form and is involved in hydrogen bonding with solvent water mol-ecules and VO2F2 - ions of adjacent mol-ecules. The extended hydrogen-bonding network is responsible for the crystal packing in the structure.

SUBMITTER: Senchyk GA

PROVIDER: S-EPMC6658938 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature

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Crystal structure of tetra-kis-[μ-3-carboxy-1-(1,2,4-triazol-4-yl)adamantane-κ2 N 1:N 2]tetra-fluoridodi-μ2-oxido-dioxidodisilver(I)divanadium(V) tetra-hydrate.

Senchyk Ganna A GA Lysenko Andrey B AB Rusanov Eduard B EB Domasevitch Kostiantyn V KV

Acta crystallographica. Section E, Crystallographic communications 20190517 Pt 6

The crystal structure of the title mol-ecular complex, [Ag2{VO2F2}2(C13H17N3O2)4]·4H2O, supported by the heterofunctional ligand tr-ad-COOH [1-(1,2,4-triazol-4-yl)-3-carb-oxy-adamantane] is reported. Four 1,2,4-triazole groups of the ligand link two AgI atoms, as well as AgI and VV centres, forming the heterobimetallic coordination cluster {Ag ...[more]

PMID: 31391971

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Project description:The asymmetric unit of the title compound, [{Sn(C4H9)2(C6H5COO)}2O]2, consists of two half molecules, completed by application of inversion symmetry. Both mol-ecules adopt a ladder structure typical for this class of dimeric tetra-organodistannoxane di-carboxyl-ates characterized by a centrosymmetric four-membered (Sn-O)2 ring of rhomboidal shape that is extended on both sides by folded six-membered Sn-O-C rings. To a first approximation, both kinds of Sn atoms (Sn i and Sn o ) are trigonal-bipyramidally coordinated. The bond angles between the n-butyl groups are widened [135.64 (7)-146.20 (7)°] in comparison with an ideal trigonal bipyramid. Sn-O bond lengths within the {R2SnO3} coordination sphere depend strongly on the position of the corresponding O atom - axial (ax) or equatorial (eq) - as well as on the functionality of the carboxyl-ate groups which exhibit μ2 (-COO i ) and μ1 (-COO o ) coordination modes, respectively. In summary, the following sequence of distances [mean values] is found: d(Sn o -Oμ3) eq [2.024 (2) Å] < d(Sn i -Oμ3) eq [2.044 (2) Å] < d(Sn i -Oμ3) ax [2.158 (6) Å] < d(Sn o -Oμ1-carb) ax [2.182 (6) Å] < d(Sn i -Oμ2-carb) ax [2.250 (2) Å] ≃ d(Sn o -Oμ2-carb) ax [2.247 (12) Å]. The n-butyl groups adopt an anti-anti conformation with exception of two disordered outer n-butyl groups of the second mol-ecule which exhibit gauche-anti and anti-gauche conformations. Weak intra-molecular Sn⋯O inter-actions between the different O atoms of the outer carboxyl groups with the inner, as well as outer, Sn atoms give rise to a strongly distorted octa-hedral coordination at these Sn atoms. Inter-molecular inter-actions between the individual mol-ecules are restricted to van der Waals and O⋯H-C inter-actions of which a nearly linear very short C-H⋯O contact between the H atom of the phenyl group of one of the mol-ecules with the outer non-coordinating C=O group of the other molecule is the most prominent. It gives rise to a chain-like arrangement of the mol-ecules along [111]. The two n-butyl groups attached to the outer Sn atom of one mol-ecule are disordered over two sets of sites with occupancies of 0.806 (3)/0.194 (3) and 0.702 (3)/0.298 (3).

Dataset Information

Crystal structure of tetra-kis-[?-3-carboxy-1-(1,2,4-triazol-4-yl)adamantane-?2 N 1:N 2]tetra-fluoridodi-?2-oxido-dioxidodisilver(I)divanadium(V) tetra-hydrate.

Publications

Crystal structure of tetra-kis-[μ-3-carboxy-1-(1,2,4-triazol-4-yl)adamantane-κ<sup>2</sup> <i>N</i> <sup>1</sup>:<i>N</i> <sup>2</sup>]tetra-fluoridodi-μ<sub>2</sub>-oxido-dioxidodisilver(I)divanadium(V) tetra-hydrate.

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