• Most molecular carbido complexes are clusters, usually featuring carbide as a six-fold bridging ligand. (wikipedia.org)
  • Ligand backbones included one, two, and three-atom bridges between the donor atoms. (caltech.edu)
  • A family of zirconocene, yttrocene, and scandocene complexes have been prepared utilizing an easily modified doubly bridged ligand array, (1,2-SiMe_2)_2{η^5-C_5H_2-4-R}{η^5-C_5H-3,5-CHMe_2)_2}, developed in our laboratories. (caltech.edu)
  • In contrast, metallocarbyne compounds are generally constitutionally heterobimetallic, with complexes containing varying coordination geometries being common. (wikipedia.org)
  • For Ruthenium coordination complexes, bridging Ru-Cl bond lengths have been observed to lie in the range of 1.76-1.8 Å. (wikipedia.org)
  • Cumulenic compounds generally bridge two metal atoms of the same element and are symmetrical. (wikipedia.org)
  • These polymaleimide derivatives can be active catalysts for the selective oxidation of heterocyclic compounds to quinoline and indole via the recycling of -C=O and -C-OH groups, which was confirmed by tracing the reaction with GC-MS using maleimide as the catalyst and by FT-IR analysis with polymaleimide as the catalyst. (nature.com)
  • Such properties have facilitated the development of a rich and diverse reaction chemistry for compounds of the group 4 transition metals with pentamethylcyclopentadienyl ancillary ligands. (caltech.edu)
  • Use of a swivel frit assembly in the synthesis of air sensitive compounds is described along procedures for the addition of gases, volatile and nonvolatile liquids and solutions to reaction mixtures. (caltech.edu)
  • Although utilized extensively, several limitations are known to be associated with the Avidin-Biotin system, which include nonspecific binding generally attributed to the basicity of the Avidin molecule, nonspecific binding attributed to the presence of carbohydrate residues on the Avidin molecule, and background interference associated with the presence of endogenous Biotin, which is ubiquitous in both eukaryotic and prokaryotic cells. (justia.com)
  • These properties have allowed the development of a rich chemistry of group 3 and 4 d-block and f-block transition metal compounds with pentamethylcyclopentadienyl ancillary ligands. (caltech.edu)
  • Furthermore, the steric bulk of the pentamethylcyclopentadienyl group discourages oligomerization through singleatom bridges (H, O, N), thus rendering permethylmetallocene derivatives monomeric. (caltech.edu)
  • Bridging carbido ligands can be subdivided into three classes: cumulenic LnM=C=M'Ln, metallocarbyne LnM≡C−M'Ln, and polar covalent LnM≡C:→M'Ln. (wikipedia.org)
  • The same division between electronegative and electropositive parts is evident in the covalent nonionic compound SiCl 4 , which can be named silicon tetrachloride , though an equally valid substitutive name is tetrachlorosilane. (encyclopedia.com)