Safyanova IS, Bondar OA, Pavlishchuk AV, Omelchenko IV, Iskenderov TS, Kalibabchuk VA. Crystal structure of poly[(μ
3-4-amino-1,2,5-oxa-diazole-3-hydroxamato)thallium(I)].
Acta Crystallogr E Crystallogr Commun 2020;
76:328-331. [PMID:
32148870 PMCID:
PMC7057383 DOI:
10.1107/s2056989020001577]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 02/04/2020] [Indexed: 11/24/2022]
Abstract
The title compound represents the thallium(I) salt of a substituted 1,2,5-oxa-diazole, [Tl(C3H3N4O3)] n , with amino- and hydroxamate groups in the 4- and 3- positions of the oxa-diazole ring, respectively. In the crystal, the deprotonated hydroxamate group represents an inter-mediate between the keto/enol tautomers and forms a five-membered chelate ring with the thallium(I) cation. The coordination sphere of the cation is augmented to a distorted disphenoid by two monodentately binding O atoms from two adjacent anions, leading to the formation of zigzag chains extending parallel to the b axis. The cohesion within the chains is supported by π-π stacking [centroid-centroid distance = 3.746 (3) Å] and inter-molecular N-H⋯N hydrogen bonds.
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