Synthesis and Structural Characterization of Two Lead(Ⅱ) Complexes of Bis(3,5-dimethylpyrazolyl)methane

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2006,（6）
• 页码范围: 811-816
• 页数: 6页
• 语种: 英文

摘要

Reactions of lead(Ⅱ) nitrate or perchlorate with bis(3,5-dimethylpyrazolyl)methane (dmpzm), produced two new Pb(Ⅱ) chelated complexes [Pb(dmpzm)2X2] (X=NO3- 1, ClO4- 2). Both compounds were structurally characterized by elemental analysis, IR spectroscopy, thermal analysis, and single crystal X-ray diffraction. Both compounds are mononuclear with a distorted square antiprismatic PbN4O4 coordination geometry incorporating a pair of O,O'-bidentate anions and N,N'-bidentate dmpzm ligands. In the crystals of 1 or 2, the methyl or methylene groups of dmpzm ligand interact with the oxygen atoms of nitrates or perchlorates to afford intra- and intermolecular hydrogen bonding, thereby forming a two-dimensional network 1 or a three-dimensional structure 2.