The nucleophilicity and electrophilicty of cyclic (alkyl) (amino) carbenes (CAACs) has been utilzed to stabilize neutral mono- and dinuclear gold complexes. These complexes are readily available by one electron reduction from the corresponding (CAAC)2M+ and (CAAC)M+Cl (M=Cu, Ag, Au), respectively. The above-mentioned complexes represent the first neutral monomeric and dimeric coinage metal complexes. These complexes have been studied by x-ray diffraction and electron paramagnetic resonance demonstrating that the additional electron is both on the metal and ligand. In addition, the Au-Au dimer has shown interesting reactivity with alkynes, alkenes, isocyanides, and boranes as well as activation of small molecules (i.e. P4).

Isolation and reactivity of neutral mono- and dinuclear coinage metal complexes of Cyclic (Alkyl)(amino) carbenes

247th National Meeting (2014)

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