Synthesis and characterization of new inorganic-organic hybrid materials of the Cu(II)-phenanthroline-oxovanadate system

Reactions in the CuSO4-phen-KVO3-H2O (KOH, ethanol) systems yielded two new compounds [Cu-2(phen)(2)V4O12] . 5H(2)O, 1, and [Cu(phen)(3)](VO3)(2) . 20H(2)O, 2 (phen = 1,10-, phenanthroline). A structure, containing a V4O124- cluster to which Cu(phen) fragments are attached through Cu-O bonds, was proposed for 1, while 2 is probably constructed from discrete [Cu(phen)(3)](2+) ions and polymeric (VO3)(n)(n-) chains. Compounds 1 and 2 represent new types in the group of Cu(II)-1,10-phenathroline-oxovanadate compounds.