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A series of (benzimidazolylidene)pentacarbonylchromium(0) complexes were synthesized by the addition of lithium 1,2-phenylenediamides to Cr(CO) 6 in the presence of 12-crown-4, followed by the treatment of chlorotrimethylsilane. X-ray crystal structural analysis revealed a rather single-bond-like character between Cr and the carbene carbon. One reversible oxidation process was observed in...
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