Postsynthetic Modification of Dicarbene-Derived Metallacycles via Photochemical [2 + 2] Cycloaddition
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资源简介：
Molecular squares obtained from two olefin-bridged bis(NHC) ligands, NHC–Ar–CC–Ar–NHC, and two Ag+ or Au+ ions undergo postsynthetic modifications via a UV-irradiation-initiated [2 + 2] cycloaddition reaction to yield the corresponding cyclobutane-bridged dinuclear tetrakis(NHC) complexes. The tetrakis(NHC) ligand can be liberated from the AgI complexes as the tetraimidazolium salt. For the AuI complexes, the substituents at N3 and N3′ of the dicarbene ligands determine the outcome of the reaction in the solid state.
创建时间：
2016-02-19
