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Poly[(?6-4-amino-3,5,6-trichloro-pyridine-2-carboxyl-ato)aqua-caesium].

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 mol-ecule and all non-H atoms of the 4-amino-3,5,6-trichloro-picolinate anion except the carboxyl-ate 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 carboxyl-ate group giving sheets extending parallel to (010). A three-dimensional coordination polymer structure is generated through the carboxyl-ate group, which also bridges the sheets down [010]. Within the structure, there are intra-unit water O-H?Ocarboxyl-ate and amine N-H?Npyridine hydrogen-bonding inter-actions.

SUBMITTER: Smith G

PROVIDER: S-EPMC3588279 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature

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Poly[(μ6-4-amino-3,5,6-trichloro-pyridine-2-carboxyl-ato)aqua-caesium].

Smith Graham G

Acta crystallographica. Section E, Structure reports online 20121208 Pt 1

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 mol-ecule and all non-H atoms of the 4-amino-3,5,6-trichloro-picolinate anion except the carboxyl-ate 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 ...[more]

PMID: 23476323

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