Spectroscopic study of the effect of methyl and phenyl substituents on the basicity of phosphine ligands in tungsten carbonyl derivatives

1986 ◽  
Vol 25 (20) ◽  
pp. 3675-3680 ◽  
Author(s):  
G. Michael Bancroft ◽  
Lisa Dignard-Bailey ◽  
Richard J. Puddephatt
2004 ◽  
Vol 59 (5) ◽  
pp. 554-558 ◽  
Author(s):  
Amar Srivastava ◽  
A.K. Shrimal ◽  
Amar Nath

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.


Author(s):  
Angela M. Hill ◽  
Nicholas J. Holmes ◽  
Anthony R. J. Genge ◽  
William Levason ◽  
Michael Webster ◽  
...  

2017 ◽  
Vol 360 (4) ◽  
pp. 676-681 ◽  
Author(s):  
Duo Wei ◽  
Antoine Bruneau-Voisine ◽  
Téo Chauvin ◽  
Vincent Dorcet ◽  
Thierry Roisnel ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document