摘要
μ-氧-双[三(邻氟苄基)锡]与2-吡啶甲酸或4-吡啶甲酸在苯溶剂中反应合成有机锡配合物二(2-吡啶甲酸)二(邻氟苄基)锡(1)和一维链状4-吡啶甲酸三(邻氟苄基)锡(2),经X射线衍射方法测定了新化合物的晶体结构。配合物(1)属四方晶系,空间群为I41/a,晶体学参数:a=1.5620(3)nm,b=1.5620(3)nm,c=1.9847(4)nm,α=β=γ=90°,V=4.8424(16)nm3,Z=8,Dc=1.594Mg·m-3,μ(MoKα)=11.06cm-1,F(000)=2320,R1=0.0243,wR=0.0625。配合物(2)属单斜晶系,空间群为P21/n,晶体学参数:a=0.8698(3)nm,b=1.8805(7)nm,c=1.4751(5)nm,β=90.937(6)°,V=2.4123(15)nm3,Z=4,Dc=1.564Mg·m-3,μ(MoKα)=11.07cm-1,F(000)=1136,R1=0.0288,wR2=0.0579;配合物1为单体结构,中心锡为六配位畸变八面体构型。配合物2通过4-吡啶甲酸配体氮原子的桥联,形成五配位三角双锥型的链状结构。
The Di(o-fluorobenzyl)tin Bis(2-picolinate) (1) and the one-dimensional chain tri(o-fluorobenzyl)tin 4-picolinate (2) have been synthesized. The crystal structures of the complexes were determined by X-ray diffraction.The crystal 1 belongs to Tetragonal space group 1411a with a=1.562 0(3) nm, b=1.562 0(3) nm, c=1.984 7(4) nm, α=β=γ=90°, V=4.842 4(16) nm^3, Z=8, Dc=1.594 Mg·m^-3,μ(Mo Kα)=11.06 cm^-1, F(000)=2 320, R1=0.024 3, wR=0.062 5. The crystal 2 belongs to Monoclinic space group P21/n with a=0.869 8(3) nm, b=1.880 5(7) nm, c=1.475 1(5) nm, β= 90.937(6) °, V=2.412 3(15) nm^3, Z=4, Dc=1.564 Mg·m^-3,μ(Mo Kα)=11.07 cm^-1, F(000)=1136, R1=0.028 8, wR2= 0.057 9. The crystal 1 is monomeric,with six-coordinated tin atom in a distorted octahedron geometry. In the crystal 2, the tin atom rendered five-coordinate in trigonal bipyramid structure by bridging pyridine N atom,resulting the one-dimensional chain polymer. CCDC: 283823, 1; 283822, 2.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第1期7-12,共6页
Chinese Journal of Inorganic Chemistry
基金
湖南省自然科学基金(No.05JJ40015)
衡阳市科技局(No.200425
2005KG01-09)资助项目。