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Two new cadmium(II) coordination polymers based on bis(1,2,4‐triazol‐1‐yl)alkane ligands and pyrazine‐2,3‐dicarboxylic acid
Author(s) -
Xia Jun,
Gong XiaoLin,
Fan Xing
Publication year - 2015
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229615016496
Subject(s) - pyrazine , butane , supramolecular chemistry , hydrogen bond , chemistry , dicarboxylic acid , coordination polymer , crystallography , stereochemistry , molecule , crystal structure , polymer chemistry , organic chemistry , catalysis
Assemblies of pyrazine‐2,3‐dicarboxylic acid and Cd II in the presence of bis(1,2,4‐triazol‐1‐yl)butane or bis(1,2,4‐triazol‐1‐yl)ethane under ambient conditions yielded two new coordination polymers, namely poly[[tetraaqua[μ 2 ‐1,4‐bis(1,2,4‐triazol‐1‐yl)butane‐κ 2 N 4 : N 4′ ]bis(μ 2 ‐pyrazine‐2,3‐dicarboxylato‐κ 3 N 1 , O 2 : O 3 )dicadmium(II)] dihydrate], {[Cd 2 (C 6 H 2 N 2 O 4 ) 2 (C 8 H 12 N 6 )(H 2 O) 4 ]·2H 2 O} n , (I), and poly[[diaqua[μ 2 ‐1,2‐bis(1,2,4‐triazol‐1‐yl)ethane‐κ 2 N 4 : N 4′ ]bis(μ 3 ‐pyrazine‐2,3‐dicarboxylato‐κ 4 N 1 , O 2 : O 3 : O 3′ )dicadmium(II)] dihydrate], {[Cd 2 (C 6 H 2 N 2 O 4 ) 2 (C 6 H 8 N 6 )(H 2 O) 2 ]·2H 2 O} n , (II). Complex (I) displays an interesting two‐dimensional wave‐like structure and forms a distinct extended three‐dimensional supramolecular structure with the help of O—H...N and O—H...O hydrogen bonds. Complex (II) has a three‐dimensional framework structure in which hydrogen bonds of the O—H...N and O—H...O types are found.