Synthesis of carboxylate derivatives of molybdenum and tungsten based on joint insertion of CO2 and PhNCS or N, N′-dicyclohexylcarbodiimide into M-Cl bonds

• Published in: Inorganic materials Vol. 49; no. 6; pp. 638 - 642
• Main Authors: Ovchinnikova, N. A., Martynova, E. A., Minaeva, N. A., Ellert, O. G.
• Format: Journal Article
• Language: English
• Published: Dordrecht SP MAIK Nauka/Interperiodica 01-06-2013
• Subjects: Attachment; Carbon dioxide; Chemistry; Chemistry and Materials Science; Derivatives; Dichloroethane; Industrial Chemistry/Chemical Engineering; Infrared radiation; Inorganic Chemistry; Insertion; Ligands; Materials Science; Molybdenum; Dichloroethane; Dicyclohexylcarbodiimide; Phenyl Isothiocyanate; Methyl Isocyanate; Carbon Dioxide Molecule
• ISSN: 0020-1685; 1608-3172
• DOI: 10.1134/S0020168513050105

Reactions of the higher molybdenum and tungsten chlorides with phenyl isothiocyanate or with
N
,
N
′-dicyclohexylcarbodiimide and carbon dioxide in dichloroethane are the first to demonstrate the possibility of insertion of carbon dioxide in combination with other heterocumulenes into transition metal-halogen bonds. IR spectroscopy and elemental analysis data show that the reactions result in the attachment of the ligands at the same metal-chlorine bond and the formation of heteromolecular insertion products with the compositions
and
where
x
= 4 and 5 for the Mo and W derivatives, respectively.