Desigen of Organic Structure in the Solid State: Hydrogen Bonded Molecular “Zigzag Ribbon” Built Up by Cis-Dibiimidazolate Ni(Ii) Complexes

Abstract The cis-[Ni(Hbim)2(en)] (Hbim− = 2,2′-biimidazolate monoanion; en = ethylenediamine) (1) is synthesized and its crystal structure is characterized by X-ray crystal analysis (Crystal data: monoclinic, P21 /n (No. 14), a = 8.970(2) Å. b = 16.872(3) Å, c = 12.389(2) Å, β= 91.82(2)°, V= 1874.0(6) Å3, Z = 4). The crystal structure comprises one-dimensional zigzag-ribbon structures built up by alternate arrangements of Δ and A optical isomers of the building block 1. The zigzag-ribbon structure is supported by complementary intermolecular hydrogen bonds of Hbim− ligands contained the building block 1.