Trans [OReV–OH] core stabilised by chelating N-heterocyclic dicarbene ligands

Abstract

Three Re(V) N-heterocyclic carbene complexes [ReO(OH)(L^Me)₂][PF₆]_1.4[ReO₄]_0.6, [ReO(OH)(L^iPr)₂][PF₆]_1.4[ReO₄]_0.6 and [ReO(OH)(L^Bn)₂][PF₆]_1.3[ReO₄]_0.7 (L^Me = 1,1′-methylene-bis(3-methylimidazole-2-ylidene); L^iPr = 1,1′-methylene-bis(3-isopropylimidazole-2-ylidene) and L^Bn = 1,1′-methylene-bis(3-benzylimidazole-2-ylidene)) with trans oxo and hydroxo at axial positions have been synthesized.