Bartolomé Camino, Carrasco-Rando Marta, Coco Silverio, Cordovilla Carlos, Espinet Pablo, Martín-Alvarez Jose M
IU CINQUIMA/Quinmica Inorgánica, Facultad de Ciencias, Universidad de Valladolid, 47071, Valladolid, Castilla y León, Spain.
Dalton Trans. 2007 Dec 7(45):5339-45. doi: 10.1039/b711430c.
Monomeric gold(I) carbenes of the type [AuR[C(NR1R2)(NHPy-4)]] (Py-4 = 4-pyridyl) have been prepared with R = C6F5, Fmes (2,4,6-tris(trifluoromethyl)phenyl) by reaction of the corresponding isocyanide compounds [AuR(CNPy-4)] with primary or secondary amines. The single crystal X-ray diffraction structures of [Au(C6F5)[C(NEt2)(NHPy-4)]].OH2, [Au(Fmes)[C(NEt2)(NHPy-4)]], and [Au(Fmes)[C(NHMe)(NHPy-4)]] show that the presence of the NHPy-4 moiety formed induces the formation of supramolecular macrocycles only supported by hydrogen bond interactions, either with N-H groups of other molecules (tetrameric macrocycles), or with water molecules (dimeric macrocycles). Dimeric gold(I) carbenes were also produced using a diamine to form a bridging carbene, or using octafluorobiphenyl to form a Au-C6F4-C6F4-Au bridge, but the solid state structures of these dimers could not be solved. Most of the complexes herein described display luminescent properties.
通过相应的异腈化合物[AuR(CNPy-4)]与伯胺或仲胺反应，制备了[AuR[C(NR1R2)(NHPy-4)]]（Py-4 = 4-吡啶基）类型的单体金（I）卡宾，其中R = C6F5、Fmes（2,4,6-三（三氟甲基）苯基）。[Au(C6F5)[C(NEt2)(NHPy-4)]].OH2、[Au(Fmes)[C(NEt2)(NHPy-4)]]和[Au(Fmes)[C(NHMe)(NHPy-4)]]的单晶X射线衍射结构表明，所形成的NHPy-4部分的存在仅通过氢键相互作用诱导超分子大环的形成，这些氢键相互作用要么与其他分子的N-H基团（四聚体大环），要么与水分子（二聚体大环）。还使用二胺形成桥连卡宾或使用八氟联苯形成Au-C6F4-C6F4-Au桥来制备二聚体金（I）卡宾，但这些二聚体的固态结构无法解析。本文所述的大多数配合物都具有发光性质。
