title: Synthesis, characterization, and electronic structures of a methyl germyliumylidene ion and germylone-group VI metal complexes.
abstract: The reaction of germylone (L)Ge (1) [L = 3-Ad-1-{C((t)Bu) = N(Mes)}C3H4N2] with 1 equivalent of MeOTf afforded a germyliumylidene ion [(L)GeMe](+)OTf(-) (2), while reactions with M(CO)5(thf) (M = Cr, Mo, W) gave the corresponding germylone-metal complexes [(L)Ge]M(CO)5 (3-5). The former possesses a pyramidal Ge center, whereas the latter display a planar geometry around the Ge atom. Computational studies showed a unique bonding interaction between 1 and the M(CO)5 unit, which involves a σ-donation as well as a weak π-back-donation.
authors.affiliation: Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore 637371, Singapore. rkinjo@ntu.edu.sg.
authors.forename: Bochao
authors.initials: B
authors.lastname: Su
authors.forename: Rakesh
authors.initials: R
authors.lastname: Ganguly
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Li
authors.forename: Rei
authors.initials: R
authors.lastname: Kinjo
mesh_terms: D002857:Chromium / Q000737:chemistry*; D003198:Computer Simulation; D056831:Coordination Complexes / Q000737:chemistry*; D005857:Germanium / Q000737:chemistry*; D008958:Models, Molecular; D015394:Molecular Structure; D008982:Molybdenum / Q000737:chemistry*; D014414:Tungsten / Q000737:chemistry*
chemical_list: D056831:Coordination Complexes; C000611702:germylene; C000611703:germylone; D005857:Germanium; D002857:Chromium; D008982:Molybdenum; D014414:Tungsten