两个三(2-甲基-2-苯基丙基)锡含N杂环羧酸酯的合成、结构、热稳定性、量子化学及毒性研究
Synthesis, Crystal Structure, Thermal Stability, Quantum Chemistry and Toxicity of Two Tri(2-methyl-2-Phenylpropyl)tin N-containing Heterocyclic Carboxylates
作者单位E-mail
庾江喜 功能金属有机材料湖南省普通高等学校重点实验室, 衡阳师范学院化学与材料科学系, 衡阳 421008  
冯泳兰 功能金属有机材料湖南省普通高等学校重点实验室, 衡阳师范学院化学与材料科学系, 衡阳 421008  
邝代治 功能金属有机材料湖南省普通高等学校重点实验室, 衡阳师范学院化学与材料科学系, 衡阳 421008 hnkcq@qq.com 
张复兴 功能金属有机材料湖南省普通高等学校重点实验室, 衡阳师范学院化学与材料科学系, 衡阳 421008  
蒋伍玖 功能金属有机材料湖南省普通高等学校重点实验室, 衡阳师范学院化学与材料科学系, 衡阳 421008  
朱小明 功能金属有机材料湖南省普通高等学校重点实验室, 衡阳师范学院化学与材料科学系, 衡阳 421008  
摘要: 在甲醇中氧化双[三(2-甲基-2-苯基)丙基锡]分别与吡嗪-2-甲酸、吲唑-3-甲酸反应,合成了2个三(2-甲基-2-苯基丙基)锡含N杂环羧酸酯(PhCMe2CH23Sn[O2C(C4N2H3)] (1)和(PhCMe2CH23Sn[O2C(C7N2H5)] (2)。经IR、1H 和13C NMR、元素分析和X-射线单晶衍射表征结构。配合物1属单斜晶系,空间群P21/n,晶体学参数:a=1.209 31(7) nm,b=1.818 15(11) nm,c=1.491 39(9) nm,β=93.567(3)°,Z=4,V=3.272 8(3) nm3Dc=1.302 Mg·m-3μ(Mo Kα)=0.812 mm-1F(000)=1 328,R1=0.027 5,wR2=0.067 0。配合物2属三斜晶系,空间群P1。晶体学参数:a=1.153 10(7) nm,b=1.819 73(11) nm,c=2.620 40(16) nm,α=86.866(2)°,β=87.063(2)°,γ=73.332(2)°,Z=6,V=5.255 9(6) nm3Dc=1.288 Mg·m-3μ(Mo )=0.762 mm-1F(000)=2 112,R1=0.037 4,wR2=0.092 5。12的中心锡原子均为畸变四面体构型。通过分子间C-H…O和N-H…N氢键作用,配合物2形成环状三聚体结构;两相邻三聚体间,经C-H…π作用进一步扩展成为六聚体。热重分析结果表明,12具有良好的热稳定性,分别在210、240 ℃以下可以稳定存在。毒性测试的初步结果表明,配合物1、2对石螺急性毒性较小,具有较好的环境相容性,且1的毒性低于2和苯丁锡。
关键词: 三(2-甲基-2-苯基丙基)锡含N杂环羧酸酯  晶体结构  热稳定性  量子化学  毒性
基金项目: 湖南省自然科学基金(No.13JJ3112),湖南省科技计划(No.2013TZ2025),湖南省高校创新平台开放基金(No.13K105),衡阳市科技计划(No.2012KJ30),衡阳师范学院协同创新中心培育项目(No.12XT02)及衡阳师范学院青年骨干教师培养计划(2012)资助项目。
Abstract: Two tri(2-methyl-2-phenylpropyl)tin N-containing heterocyclic carboxylates (PhCMe2CH2)3Sn[O2C(C4N2H3)] (1) and (PhCMe2CH2)3Sn[O2C(C7N2H5)] (2) were synthesized by the reactions of Pyrazine-2-carboxylic acid and Indazole-3-carboxylic acid with bis[tri(2-methyl-2-phenylpropyl)tin] oxide, respectively. Their structures were characterized by IR, 1H and 13C NMR, elemental analysis and X-ray crystal diffraction. The crystal of complex 1 belongs to monoclinic system, space group P21/n, a=1.209 31(7) nm, b=1.818 15(11) nm, c=1.491 39(9) nm, β=93.567(3)°, Z=4, V=3.272 8(3) nm3, Dc=1.302 Mg·m-3, μ(Mo )=0.812 mm-1, F(000)=1 328, R1=0.027 5, wR2=0.067 0. However, the crystal of complex 2 belongs to triclinic system, space group P1, a=1.153 10(7) nm, b=1.819 73(11) nm, c=2.620 40(16) nm, α=86.866(2)°, β=87.063(2)°, γ=73.332(2)°, Z=6, V=5.255 9(6) nm3, Dc=1.288 Mg·m-3, μ(Mo )=0.762 mm-1, F(000)=2 112, R1=0.037 4, wR2=0.092 5. The central tin atoms of them are aberrant tetrahedral configurations. A trimeric structure of complex 2 is formed by intermolecular C-H…O and N-H…N interactions, and a hexameric structure of complex 2 is further generated by C-H…π interactions between two adjacent trimers. Thermogravimetric analysis shows these complexes displayed good thermal stability, and were stable up to 210 or 240 ℃, respectively. The preliminary tests showed the complexes revealed weak toxicity against local snail, and the toxicity of complex 1 was less than that of complex 2 and bis[tri(2-methyl-2-phenylpropyl)tin] oxide. It may mean that the complexes are of good environmental compatibility. CCDC: 956893, 1; 956892, 2.
Keywords: tri(2-methyl-2-phenylpropyl)tin N-containing heterocyclic carboxylate  crystal structure  thermal stability  quantum chemistry  toxicity
投稿时间:2014-04-26 修订日期:2014-06-26
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庾江喜,冯泳兰,邝代治,张复兴,蒋伍玖,朱小明.两个三(2-甲基-2-苯基丙基)锡含N杂环羧酸酯的合成、结构、热稳定性、量子化学及毒性研究[J].无机化学学报,2014,30(10):2353-2359.
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