title: Trans [O=Re(V)-OH] core stabilised by chelating N-heterocyclic dicarbene ligands.
abstract: Three Re(v) N-heterocyclic carbene complexes [ReO(OH)(L(Me))(2)][PF(6)](1.4)[ReO(4)](0.6), [ReO(OH)(L(iPr))(2)][PF(6)](1.4)[ReO(4)](0.6) and [ReO(OH)(L(Bn))(2)][PF(6)](1.3)[ReO(4)](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.
authors.affiliation: Institute of Materials Research and Engineering, Agency for Science Technology and Research, 3 Research Link, S117602, Singapore.
authors.forename: Regina
authors.initials: R
authors.lastname: Lum
authors.forename: Hu
authors.initials: H
authors.lastname: Zhang
authors.forename: Wenhua
authors.initials: W
authors.lastname: Zhang
authors.forename: Shi-Qiang
authors.initials: SQ
authors.lastname: Bai
authors.forename: Jin
authors.initials: J
authors.lastname: Zhao
authors.forename: T S Andy
authors.initials: TS
authors.lastname: Hor