New Metal Carbonyl Complexes of Mixed Group 15/16 Anions: Structural Characterization of [Fe(As3Se3)2(CO)]2-, [Mn(As3Se5)(CO)3]2-, and [Fe2(AsTe4)2(CO)4]2-

1995 ◽  
Vol 34 (17) ◽  
pp. 4385-4391 ◽  
Author(s):  
Thomas M. Martin ◽  
Paul T. Wood ◽  
George L. Schimek ◽  
William T. Pennington ◽  
Joseph W. Kolis
Keyword(s):  
Structural Characterization ◽  
Metal Carbonyl ◽  
Mixed Group ◽  
Carbonyl Complexes ◽  
Metal Carbonyl Complexes ◽  
Group 15

scholarly journals Synthesis and Characterization of Group-6 Metal Carbonyl Complexes of Aroyl Hydrazone Derivatives

2012 ◽  
Vol 9 (2) ◽  
pp. 807-817 ◽  
Author(s):  
Mohd Saleem ◽  
Mohita Sharma ◽  
Simpy Mahajan ◽  
H. N. Sheikh ◽  
B. L. Kalsotra
Keyword(s):  
Benzoic Acid ◽  
Metal Carbonyl ◽  
Carbonyl Oxygen ◽  
Azomethine Nitrogen ◽  
Carbonyl Complexes ◽  
H Nmr ◽  
Metal Carbonyl Complexes ◽  
Secular Equations ◽  
Ir Bands

Carbonyl complexes of Chromium, molybdenum and tungsten of composition, [M(CO)4L-L], (where M= Cr, Mo or W and L-L= benzoic acid[1-(Furan-2-yl)methylene]hydrazide (BFMH), benzoic acid[(thiophene-2-yl)methylene]hydrazide (BTMH), benzoic acid[1-(thiophene-2-yl)ethylidene] hydrazide (BTEH), benzoic acid (phenylmethylene)hydrazide (BPMH) and benzoic acid[1-(anisol-3-yl)methylene] hydrazide (BAMH) are reported. These have been prepared by refluxing metal carbonyls and the ligands in 1:1molar ratio. The complexes were characterized by elemental analysis, IR spectra, UV-vis spectra,1H NMR, TGA/DTA, conductivity and magnetic susceptibility measurements. The IR bands suggest that in all the complexes the ligands behave as neutral bidentate chelating type coordinating metal through carbonyl oxygen and azomethine nitrogen. The CO force constants and CO-CO interaction constants for these derivatives have been calculated using Cotton-Kraihanzel secular equations, which indicate poorπ-bonding ability of the coordinated ligands.

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