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Tetra-kis(picolinato-?N,O)zirconium(IV) dihydrate.

ABSTRACT: In the title compound, [Zr(C(6)H(4)NO(2))(4)]·2H(2)O, the Zr(IV) atom is located on a crystallographic fourfold rotoinversion axis ([Formula: see text]) and is coordinated by four picolinate anions with Zr-O and Zr-N distances of 2.120?(2) and 2.393?(2)?Å, respectively. An approximate square-anti-prismatic coordination polyhedron of the N,O-coordination ligand atoms is formed, with a distortion towards dodeca-hedral geometry. The crystal packing is stabilized by inter-molecular ?-? inter-actions between adjacent picolinate rings [centroid-centroid distances = 3.271?(1) and 3.640?(2)?Å], as well as O-H?O hydrogen bonds between the solvent mol-ecules and the coordinated ligands, thereby linking the mol-ecules into a supra-molecular three-dimensional network.

SUBMITTER: Steyn M 

PROVIDER: S-EPMC3200838 | biostudies-other | 2011 Sep

REPOSITORIES: biostudies-other

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Tetra-kis(picolinato-κN,O)zirconium(IV) dihydrate.

Steyn Maryke M   Visser Hendrik G HG   Roodt Andreas A   Muller T J TJ  

Acta crystallographica. Section E, Structure reports online 20110817 Pt 9

In the title compound, [Zr(C(6)H(4)NO(2))(4)]·2H(2)O, the Zr(IV) atom is located on a crystallographic fourfold rotoinversion axis ([Formula: see text]) and is coordinated by four picolinate anions with Zr-O and Zr-N distances of 2.120 (2) and 2.393 (2) Å, respectively. An approximate square-anti-prismatic coordination polyhedron of the N,O-coordination ligand atoms is formed, with a distortion towards dodeca-hedral geometry. The crystal packing is stabilized by inter-molecular π-π inter-actions  ...[more]

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