Studies on bismuth carboxylates—synthesis and characterization of a new structural form of bismuth(III) dipicolinate

Journal of Chemical Sciences

K C Kumara Swamy1¹  O Anjaneyulu¹ 

[1] School of Chemistry, University of Hyderabad, Hyderabad 500046, India$$

关键词: Bismuth;    picolinic acid;    dipicolinic acid;    X-ray crystal structure;    coordination polymer;    carboxylate.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

Synthesis and X-ray structure of a new bismuth dipicolinate cooordination polymer, {[Bi((2,6-O2C)2C5H3N)((2-HO2C-6-O2C)C5H3N)(H2O)]2.5H2O}𝑛 (7) are presented. Compound 7 has dimeric units with a Bi2O2 skeleton that are linked by additional weak Bi-O interactions leading to a polymeric structure. The overall coordination number at bismuth is 9 [two Bi-N and seven Bi-O bonds]. New routes to a second crystalline modification (4′) of the previously reported coordination polymer, bismuth tris(picolinate), [Bi(2-O2C-C5H4N)3]𝑛 (4), are described; bond parameters in the two crystalline forms (4 and 4′) are compared. In both the compounds 4′ and 7, bismuth has a distorted tricapped trigonal prismatic geometry.

【 授权许可】

Unknown