Synthesis, Properties and Crystal Structure of Seven-coordinated Organotin Complex [nBu2Sn(OOCC5H4N-2)2(H20)]

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2002,（12）
• 页码范围: 1608-1611
• 页数: 4页
• 语种: 英文

摘要

A novel seven-coordinated organotin complex [nBu2Sn-(OOCC5H4N-2)2(H2O)] was unexpectedly synthesized by reaction of nBu3SnCl with 2-pyridinecarboxylic acid in 1:1 molar ratio in the presence of organic base Et3N. The crystal structure was determined by single crystal X-ray diffraction analysis. The crystal belongs to rhombohedral with space group R3c, a = 1.5807(3) mn, b = 1.5807(3) nm, c = 1.5807(3)nm, a = 105.717(2)°, β = 105.717(2)°, γ = 105.717(2)°, Z =6, V = 3.397 (8) nm3, De = 1.452 g/cm3, μ = 1.158mm-1, F(000) = 1512, R1 = 0.0447, wR2 = 0.1038. In crystal, the tin atoms rendered seven-coordinate in a distorted pentagonal bipyramidal geometry. The two-dimensional network structure was formed by H-bonding interaction between the free oxygen atoms of carboxyi groups and the coordinated water molecules.