Poly[(mu6-4-amino-3,5,6-trichloropyridine-2-carboxylato)aquacaesium

Smith, Graham (2013) Poly[(mu6-4-amino-3,5,6-trichloropyridine-2-carboxylato)aquacaesium. Acta Crystallographica. Section E : Structure Reports Online, 69, m22-m23.

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Abstract

In the structure of the title complex, [Cs(C6H2Cl3N2O2)(H2O)]n, the caesium salt of the commercial herbicide picloram, the Cs+ cation lies on a crystallographic mirror plane, which also contains the coordinating water molecule and all non-H atoms of the 4-amino-3,5,6-trichloropicolinate anion except the carboxylate O-atom donors. The irregular CsCl4O5 coordination polyhedron comprises chlorine donors from the ortho-related ring substituents of the picloramate ligand in a bidentate chelate mode, with a third chlorine bridging [Cs-Cl range 3.6052 (11)-3.7151 (11) Å] as well as a bidentate chelate carboxylate group giving sheets extending parallel to (010). A three-dimensional coordination polymer structure is generated through the carboxylate group, which also bridges the sheets down [010]. Within the structure, there are intra-unit water O-HOcarboxylate and amine N-HNpyridine hydrogen-bonding interactions.

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ID Code: 56665
Item Type: Journal Article
Refereed: Yes
Keywords: crystal structure, caesium complex, metal-herbicide complex, tordon, picloram
DOI: 10.1107/S1600536812049562
ISSN: 1600-5368
Subjects: Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 2013 International Union of Crystallography
Deposited On: 24 Jan 2013 23:15
Last Modified: 05 Feb 2013 05:46

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