Effect of Flexible Bis(Benzimidazole) Ligands on the Structures of Cobalt(II) Coordination Polymers Derived from 2,6‐Naphthalenedicarboxylic Acid

Abstract

Abstract. The cobalt(II) coordination polymers{[Co(L1)(nda)]· 2H 2 O} n (1) and [Co(L2) 2 (nda)] n (2), [L1 = 1,2-bis(2-methylbenzimidazol-1-ylmethyl)benzene, L2 = 1,4-bis(5,6-dimethylbenzimidazol-1-ylmethyl)benzene, H 2 nda = 2,6-naphthalenedicarboxylic acid] were hydrothermally synthesized by self-assembly of cobalt chloride with H 2 nda and different semi-rigid bis(benzimidazole) derivatives and characterized by IR spectroscopy, elemental analysis, and X-ray single-