Turek Jan, Panov Illia, Švec Petr, Růžičková Zdeňka, Růžička Aleš
Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10, Pardubice, Czech Republic.
Dalton Trans. 2014 Nov 7;43(41):15465-74. doi: 10.1039/c4dt01994f.
Seven coinage metal(I) complexes bearing two different triazole-based N-heterocyclic carbene (NHC) ligands, [1-tert-butyl-4-{2-[(N,N-dimethylamino)methyl]phenyl}-3-phenyl-1H-1,2,4-triazol-4-ium-5-ide and 1-tert-butyl-4-(4-methylphenyl)-3-phenyl-1H-1,2,4-triazol-4-ium-5-ide], were synthesized and fully characterized in solution by NMR spectroscopy as well as in the solid state by X-ray diffraction techniques. Furthermore, the XRD analysis showed that the bidentate coordination of the amino group substituted NHC ligand, previously observed for rhodium and palladium complexes, does not take place in the solid state structure of Au(I) complexes with various halide ligands. Nevertheless, the formation of sets of two head-to-tail oriented monomers aggregated via a weak metallophilic contact was revealed for both NHC ligands as well as for all three coinage metals with different halides. These experimental data correlate quite well with the previously published theoretical study on related complexes.
合成了七种带有两种不同三唑基氮杂环卡宾（NHC）配体的硬币金属（I）配合物，[1-叔丁基-4-{2-[(N,N-二甲基氨基)甲基]苯基}-3-苯基-1H-1,2,4-三唑-4-鎓-5-负离子和1-叔丁基-4-(4-甲基苯基)-3-苯基-1H-1,2,4-三唑-4-鎓-5-负离子]，并通过核磁共振光谱在溶液中以及通过X射线衍射技术在固态下对其进行了全面表征。此外，XRD分析表明，先前在铑和钯配合物中观察到的氨基取代的NHC配体的双齿配位在具有各种卤化物配体的Au（I）配合物的固态结构中并未发生。然而，对于两种NHC配体以及所有三种带有不同卤化物的硬币金属，均揭示了通过弱金属亲合接触聚集形成的两组头对尾取向单体。这些实验数据与先前发表的关于相关配合物的理论研究相当吻合。
