离子型化合物{[Ph_2Sn]_2[2,6-Py(CO_2)_2]_3H_2O}^(2-)[HNEt_3]_2^+的合成及晶体结构研究

Synthesis and Crystal Structure of a Novel Ionic Organotin {[Ph_2Sn]_2[2,6-Py(CO_2)_2]_3H_2O}^(2-)[HNEt_3]_2^+

在三乙胺作碱的条件下 ,用三苯基氯化锡和 2 ,6 -吡啶二甲酸以 1∶ 1摩尔比反应 ,合成了离子型有机锡化合物 { [Ph2 Sn]2 [2 ,6 -Py( CO2 ) 2 ]3 H2 O} 2 - [HNEt3 ]+2 。用 X-射线单晶衍射测定了该化合物的晶体结构。化合物为单斜晶系 ,空间群 P2 1 /n,a=1 .70 73( 7) nm,b=1 .74 47( 7) nm,c=2 .4 333( 1 0 ) nm,β=1 0 9.6 94 ( 7)°,Z=4 ,V=6 .82 4 ( 5 ) nm3 ,Dx=1 .2 82 g/cm3 ,μ=0 .793mm- 1 ,F( 0 0 0 ) =2 6 96 ,R1 =0 .0 5 6 3,WR2 =0 .1 5 39。

A novel ionic organotin compound { 2[2,6-Py(CO 2) 2] 3H 2O} 2- + 2 was synthesized by the reaction of Ph 3SnCl with 2,6-pyridine dicarboxylic acid in 1∶1 molar ratio in the presence of organic base Et 3N. The structure were characterized by elemental analysis, IR and 1H NMR, and the crystal structure were determined by X-ray single crystal diffraction. The crystal belongs to monoiclinic with space group P2 1/n, a=1.7073(7)nm, b=1.7447(7)nm, c=2.4333(10)nm, β=109.694(7)°, Z=4,V=6.824(5)nm 3, D x=1.282g/cm 3,μ=0.793mm -1, F(000)=2696, R 1=0.0563, WR 2=0.1539. In the crystals of compound, the tin atoms rendered seven-coordinate in a distorted pengonal bipyramidal structure.