Hydrothermal synthesis, crystal structures of two new transition metal coordination chain polymers with mixed ligands

Hydrothermal reactions of fumaric acid, 1,10-phenanthroline or 2,2′-bipyridine and transition metal cations gave rise to two complexes, [Zn(Hmal)(1,10-phen)(H2O)]n (1) and [Cu(Hmal)(2,2′-bipy)]n · 3nH2O (2) (malic acid=H3mal). The photoluminescence spectrum and the interesting second-order non-linear optical (NLO) property for compound 1 have been studied.