Metal complexes of fluorophosphines. 10. Mononuclear and binuclear chromium, molybdenum, and tungsten carbonyl derivatives of (alkylamino)bis(difluorophosphines)

1982 ◽  
Vol 21 (1) ◽  
pp. 319-329 ◽  
Author(s):  
R. B. King ◽  
T. W. Lee
Keyword(s):  
Metal Complexes ◽  
Carbonyl Derivatives ◽  
Tungsten Carbonyl ◽  
Derivatives Of ◽  
And Tungsten

Chromium, molybdenum and tungsten carbonyl derivatives of distibinomethane ligands †

1998 ◽  
pp. 825-832 ◽  
Author(s):  
Angela M. Hill ◽  
Nicholas J. Holmes ◽  
Anthony R. J. Genge ◽  
William Levason ◽  
Michael Webster ◽  
...  
Keyword(s):  
Carbonyl Derivatives ◽  
Tungsten Carbonyl ◽  
Derivatives Of ◽  
And Tungsten

Synthesis and Characterization of Diarylthiourea Derivatives of Tungsten Carbonyl

2004 ◽  
Vol 59 (5) ◽  
pp. 554-558 ◽  
Author(s):  
Amar Srivastava ◽  
A.K. Shrimal ◽  
Amar Nath
Keyword(s):  
Ir Spectra ◽  
Ultra Violet ◽  
Mixed Ligand ◽  
Force Constants ◽  
Synthesis And Characterization ◽  
Carbonyl Derivatives ◽  
Tungsten Carbonyl ◽  
Derivatives Of

Abstract Reactions of five sym-diarylthioureas (L), viz,, sym-diphenylthiourea (dptu), sym-di-o-tolylthiourea (dottu), sym-di-p-tolylthiourea (dpttu), sym-di-o-anisylthiourea (doatu) and sym-di-α- naphthylthiourea (dαntu) with W(CO)6 have been performed both by reflux and ultra-violet irradiation methods in which only monosubstituted products [(L)W(CO)5] are obtained. Several mixed ligand tungsten carbonyl derivatives, viz., [(o-phen or 2,2’-bipy)(L)W(CO)3] and [(Ph3P or Ph3As)(L)W(CO)4] have also been synthesized. Halogenation of [(L)W(CO)5] yielded heptacoordinated [(L)W(CO)4X2] (X = Br or I). The complexes have been characterized by microanalytical data, conductivity and IR measurements. The C-O stretching force constants and CO-CO stretch-stretch interaction constants of [(L)W(CO)5] derivatives have also been evaluated from the IR spectra.

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