三苄基和三丁基锡4-吡啶甲酸酯聚合物的合成、性质及晶体结构  

Synthesis and Crystal Structure of the Polymeric Tribenzyltin 4-Picolinate and Tributyltin 4-Picolinate

作　　者：尹汉东[1] 王传华[1] 王勇[1] 马春林[1] 

机构地区：[1]聊城师范学院化学系,聊城252059

出　　处：《高等学校化学学报》2002年第7期1309-1313,共5页Chemical Journal of Chinese Universities

基　　金：教育部骨干教师基金;山东省自然科学基金 (批准号 :Q98B0 1117)

摘　　要：用三苄基氯化锡及三丁基氯化锡与 4-吡啶甲酸钠反应 ,分别合成了三苄基锡 4-吡啶甲酸酯 (1 )和三丁基锡 -4-吡啶甲酸酯 (2 ) ,并进行了红外光谱、核磁共振氢谱及质谱表征 .X射线单晶衍射分析结果表明 ,化合物 1属单斜晶系 ,P2 1 /n空间群 ,晶胞参数 :a=0 .965 64(8) nm,b=1 .640 85 (1 4) nm,c=1 .4940 3 (1 3 ) nm,β=97.681 (2 ) 0 ,V=2 .3 460 (3 ) nm3,Z=4,Dc=1 .45 6g/cm3.化合物 2属单斜晶系 ,P2 1 /n空间群 ,晶胞参数 :a=0 .96673 (1 4) nm,b=2 .3 845 (4 ) nm,c=0 .970 71 (1 4) nm,β=1 1 2 .463 (3 ) o ,V=2 .0 679(5 ) nm3,Z=4,Dc=1 .3 2 4g/cm3.两个化合物均通过 4-吡啶甲酸配体的氮原子桥联 。Tribenzyltin 4 picolinate(1) and tributyltin 4 picolinate(2) were synthesized by the reaction of sodium 4 picolinate with the tribenzyltin chlorideor tributyltin chloride and were characterized by IR, 1H NMR and MS. Their crystal structures were determined by X ray single crystal diffraction. The crystal 1 crystallizes in monoclinic, space group P2 1/n with a =0.965 64(8) nm, b =1.640 85(14) nm, c = 1.494 03(13) nm, β =97.681(2) o, V =2.346 0(3) nm 3, Z=4, D c=1.456 g/cm 3, and crystal 2 in monoclinic, space group P2 1/c with a =0.966 73(14) nm, b =2.384 5(4) nm, c =0.970 71(14) nm, β =112.463(3) o, V =2.067 9(5) nm 3, Z=4, D c=1.324 g/cm 3. In crystals 1 and 2, the tin atom rendered five coordinate in trigonal bipyramidal structure by bridging pyridine N atom and the resulted structures are one dimensional infinite chain polymer.

关 键 词：三丁基锡4-吡啶甲酸酯 聚合物 合成 性质 一维无限链 晶体结构 三苄基锡4-吡啶甲酸酯 

分 类 号：O634.43[理学—高分子化学] O633.5[理学—化学]