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Updated: May 24, 2026

Palladium N-Heterocyclic Carbene Complexes: Synthesis from Benzimidazolium Salts and Catalytic Activity in Carbon-carbon Bond-forming Reactions
Published on: July 30, 2017
catena-Poly[[[diaqua-diformatonickel(II)]-μ-1,4-bis-(1H-benzimidazol-1-yl)benzene] dihydrate]
Hui Li1, Hong Sun, Xiaochuan Chai
1Department of Applied Chemistry, Yuncheng University, Yuncheng, Shanxi 044000, People's Republic of China.
Abstract:
In the title one-dimensional coordination polymer, {[Ni(CHO(2))(2)(C(20)H(14)N(4))(H(2)O)(2)]·2H(2)O}(n), the Ni(II) atom lies on a crystallographic inversion centre. It is coordinated by two formate O atoms, two water O atoms and two N atoms from two 1,4-bis-(1H-benzimidazol-1-yl)benzene (bzb) ligands, resulting in a distorted trans-NiN(2)O(4) octa-hedral coordination geometry. The bzb mol-ecule acts as a bridging ligand to connect the metal atoms into a chain propagating in [1[Formula: see text][Formula: see text]]. The dihedral angle between the benzimidazole ring and the central benzene ring in the ligand is 38.16 (9)°. In the crystal, O-H⋯O hydrogen bonds crosslink the chains into (010) sheets.
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