Synthesis and Structure of a Novel Chain-like Inorganic-organic Hybrid Constructed from Isopolyanion and Oxalato-bridged Dinuclear Copper Complex

A novel inorganic-organic hybrid based on isopolyanion,{[Cu2(phen)2(μ-ox)][H2Mo8O26]}·4EtOH·Et2O(1) (phen=phenanthroline,ox=oxalate),was synthesized under open-air mild reaction conditions,and characterized by elemental analysis,IR,ICP,TG and single crystal X-ray diffraction analysis.The crystal structure belongs to triclinic system with space group Pī and cell parameters:a=1.1075(5) nm,b=1.1608(5) nm,c=1.3333(5) nm,α=91.683(5)o,β=113.996(5)o,γ=112.170(5)o,V=1.4159(10) nm3,Mr=2017.44,Z=1,Dc=2.366 g/cm3 and F(000)=980.0.The structure of hybrid 1 is a 1D chain constructed of alternating octamolybdate isopolyanions [β-(Mo8O26)4-] and oxalato-bridged dinuclear copper complex cations [Cu2(phen)2(μ-ox)]2+.Ultimately,a 3D supramolecular network was formed by hydrogen bond interactions among the adjacent chains.The result shows that hybrid 1 is the first example of inorganic-organic hybrid constructed from isopolyanion and oxalato-bridged dinuclear copper complex fragment (CCDC No.665101).