摘要
以N-杂环卡宾——1,3-双(苄基)苯并咪唑盐酸盐(L1)和1,3-双(苄基)苯并咪唑六氟磷酸盐(L2)为配体,Ag和Au为中心金属原子,经金属交换反应合成了两个新型的N-杂环卡宾金属配合物{[Ag(L1)2]BF4(1)和[Au(L2)2]BF6(2)}。1和2的结构经1H NMR,13C NMR,元素分析和X-单晶衍射表征。1(CCDC:992 423)和2(CCDC:1 047 285)均属三斜晶系,P-1空间群。1的晶胞参数a=8.371(10),b=11.006(14),c=11.335(15),α=107.756(3)°,β=93.266(2)°,γ=112.155(3)°,V=903.5(2)3,Z=1,Dc=1.455 g·cm-3,R1=0.051 0,ωR2=0.122 8。2的晶胞参数a=8.398(10),b=10.722(15),c=11.705(18),α=70.122(2)°,β=87.642(2)°,γ=69.591(2)°,V=925.4(2)3,Z=1,Dc=1.684 g·cm-3,R1=0.037 3,ωR2=0.096 6。1和2均为中心金属原子与2个配体的卡宾碳原子形成二配位体的结构模式。
Two novel N-heterocyclic carbene complexs of Ag (I) and Au (I), { [Ag ( L1 )2 ] BF4 ( 1 ) I and { [ Au (L2) 2 ] PF6 (2) I, were synthesized by transmetallation reaction, using 3-bis (benzyl) benzimidazolium chloride hydrate( L1 ) and 3-bis (benzyl) benzimidazoliumhexafluorophosphate ( L2 ) as the ligands, Ag and Au as the center metal atom. The structures were characterized by 1H NMR, 13C NMR, elemental analysis and X-ray single crystal diffraction. 1 (CCDC: 992 423 ) and 2( CCDC: 1 047 285) both belongs to triclinic and space group P-1. The cell parameters of 1 and 2 were a = 8.371(10) A, b =11.006(14) A, c=11.335(15) A, α=107.756(3)°, β=93.266(2)°, γ = 112.155(3)°, V=903.5(2) A3, Z=1, Dc=1.455 g . cm-3, R1 =0.051 0, ωRz2=0.1228; a= 8.398(10) A, b =10.722(15) A, c = 11.705(18) A, α =70. 122(2)°,β =87.642(2)°,γ =69.591 (2)°, V=925.4(2) A3, Z=1, Dc=1.684 g . cm-3, Ra =0.037 3, ωR2 =0.096 6. 1 and2 were in same struetures of one center metal atom coordinate with two carbene carbon atoms.
出处
《合成化学》
CAS
CSCD
2015年第7期616-618,622,共4页
Chinese Journal of Synthetic Chemistry
基金
浙江省大学生科研创新团队资助项目(2014R417008)
关键词
N-杂环卡宾
银配合物
金配合物
合成
晶体结构
N-heterocyclic carbene
silver complex
gold complex
synthesis
crystal structure