Self-Assembly of Organotin(<span class="smallCaps">IV) Moieties with the Schiff-Base Ligands Pyruvic Acid Isonicotinyl Hydrazone and Pyruvic Acid Salicylhydrazone: Synthesis, Characterization, and Crystal Structures of Monomeric or Polymeric ComplexesHandong Yin; Min Hong; Haolong Xu; Zhongjun Gao; Gang Li; Daqi Wang · 2005