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Linear and Helical Chains in Hydrothermally Synthesized Coordination Polymers [Co(bpdc)(H 2 O) 2 ] and [Ni(bpdc)(H 2 O) 3 ]·H 2 O Involving in situ Ligand Synthesis
Author(s) -
Zhang XianMing,
Wu HaiShun,
Chen XiaoMing
Publication year - 2003
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300060
Subject(s) - chemistry , supramolecular chemistry , crystallography , hydrothermal synthesis , coordination polymer , hydrogen bond , hydrothermal circulation , crystal structure , pyridine , reagent , hydrothermal reaction , stereochemistry , medicinal chemistry , organic chemistry , molecule , chemical engineering , engineering
Hydrothermal treatment of M(MeCO 2 ) 2 (M = Co or Ni) and 1,10‐phenanthroline‐5,6‐dione (pdon) resulted in two chain‐like coordination polymers [Co(bpdc)(H 2 O) 2 ] and [Ni(bpdc)(H 2 O) 3 ]·H 2 O. X‐ray single‐crystal structural analysis revealed that the organic reagent pdon was transformed in situ into 2,2′‐bipyridine‐3,3′‐dicarboxylate (bpdc). The different coordination modes concomitant with the difference of the dihedral angles between two bpdc pyridine rings results in simple linear chains and helical chains in 1 and 2 , respectively. The one‐dimensional coordination chains of 1 and 2 are further extended into two‐dimensional supramolecular arrays by hydrogen‐bond interactions. A possible mechanism for the new hydrolysis reaction with the formation of bpdc under hydrothermal conditions was also discussed. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)