Departamento de Química Inorgánica-Instituto de Síntesis Química y Catálisis Homogénea (ISQCH), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain.
J Am Chem Soc. 2013 Mar 27;135(12):4712-5. doi: 10.1021/ja401523x. Epub 2013 Mar 19.
The first three-coordinate gold(I) N-heterocyclic carbene (NHC) complexes have been prepared with the nido-carborane diphosphine. The complexes are brightly luminescent and present very high quantum yield values. The carbene ligand is able to modulate the energy of the emissions and, depending upon the substituent, the luminescence changes from blue to green. Theoretical calculations corroborate that the emissions are phosphorescence and arise from charge transfer (LML'CT) transitions from nido-carborane ligand (L) to metal/ligand group "gold(I)-NHC ligand" (ML').
首例三坐标金（I）氮杂环卡宾（NHC）配合物已采用笼型二膦基 nido-碳硼烷制备而成。这些配合物具有很强的发光性，呈现出非常高的量子产率值。卡宾配体能够调节发射能，并且根据取代基的不同，发光从蓝色变为绿色。理论计算证实，这些发光为磷光，源于从 nido-碳硼烷配体（L）到金属/配体基团“金（I）-NHC 配体”（ML'）的电荷转移（LML'CT）跃迁。
