Hydrothermal Assembly and Structural Characterization of an Octamolybdate Supported Copper(Ⅰ) Tetramer:Cu2(1,10-phen)2(4,4'-bpy)2Mo8O26·4H2O

摘要

A hydrothermal reaction of copper acetate with ammonium molybdate, 4,4'-bpy (4,4'-bipyridine) and 1,10-phen (1,10-phenanthroline) led to the formation of brown crystals of [Cu2(1,10-phen)2(4,4'-bpy)]2 [Mo8O26]@4H2O 1. Single-crystal X-ray analysis has revealed that 1 C68H56N12O30Cu4Mo8 crystallizes in the triclinic system, space group P ī with a = 11.270(3), b = 13.113(6), c = 13.906(3)A, α = 103.33(4),α = 98.54(2),β= 101.29(2)°, V = 1920.1(1)A3, Mr = 2542.9(3), Z = 1, Dc = 2.199 g/cm3, μ= 2.435 mm-1, F(000)= 1240, the final R = 0.0445, wR = 0.1082 and S = 1.021 for 5052 observed reflections with I>σ2(I).It consists of copper Ⅰ tetramer units and α-[Mo8O26]4- anions, which are further attached into a three-dimensional framework through hydrogen bonding and π-π stacking interactions.