Premium
Effect of Organic Dicarboxylates with Different Rigidity on the Construction of Cobalt(II) Complexes with a Semi‐rigid Tripyridyl‐bis‐amide Ligand
Author(s) -
Wang XiuLi,
Chen NaiLi,
Liu GuoCheng,
Huang JingJing,
Luan Jian,
Qu Yun
Publication year - 2014
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201300299
Subject(s) - chemistry , supramolecular chemistry , amide , ligand (biochemistry) , crystallography , hydrogen bond , coordination complex , stereochemistry , cobalt , crystal structure , pyridine , coordination polymer , ion , electrochemistry , medicinal chemistry , inorganic chemistry , molecule , metal , receptor , organic chemistry , electrode , biochemistry
Three coordination compounds with dimensions from 0D to 2D, namely, [Co(bppdca) 2 (HL1) 2 ] ( 1 ) [Co(bppdca)(L2)(H 2 O)] · 2H 2 O ( 2 ) and [Co(bppdca)(L3)] · 3H 2 O ( 3 ) [bppdca = N , N ′‐bis(pyridine‐3‐yl)pyridine‐2,6‐dicarboxamide, H 2 L1 = 2,5‐pyridinedicarboxylic acid, H 2 L2 = 4,4′‐oxybisbenzoic acid, H 2 L3 = 2‐carboxymethylsulfanyl nicotinic acid] were hydrothermally synthesized and structurally characterized. Single crystal X‐ray diffraction analysis reveals that complex 1 is a discrete 0D complex, in which the bppdca ligand and the H 2 L1 act as the terminal groups to coordinate with the Co II ions. In coordination polymer 2 , two bppdca ligands coordinate in anti configuration with two Co II ions to generate a 28‐membered Co 2 (bppdca) 2 loop, which is further extended into 1D ladder‐like double chain by pairs of L2 ligands. In 3 , the Co II ions are linked by bppdca ligands to generate 1D wave‐like chain, which is further connected by the L3 to form a 2D network. Finally, the coordination compounds 1 – 3 are extended into 3D supramolecular frameworks through the hydrogen bonding interactions. The Co II ions and the bppdca ligands in the title coordination compounds exhibit different coordination characters and conformations. The effect of organic dicarboxylates with different rigidity and length on the structures of Co II coordination compounds was investigated. In addition, the fluorescence and electrochemical behaviors of coordination compounds 1 – 3 were reported.