Negative ion photoelectron spectroscopy of coordinatively unsaturated Group VI metal carbonyls of chromium, molybdenum, and tungsten: Cr(CO)3, Mo(CO)3, and W(CO)3

1992 ◽  
Vol 114 (13) ◽  
pp. 5257-5268 ◽  
Author(s):  
Ashfaq A. Bengali ◽  
Sean M. Casey ◽  
Chun Lin Cheng ◽  
Jonathan P. Dick ◽  
P. Thomas Fenn ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Negative Ion ◽  
Metal Carbonyls ◽  
Group Vi ◽  
Unsaturated Group ◽  
And Tungsten

ChemInform Abstract: Negative Ion Photoelectron Spectroscopy of Coordinatively Unsaturated Group VI Metal Carbonyls: Cr(CO)3, Mo(CO)3, and W(CO)3.

ChemInform ◽  
2010 ◽  
Vol 23 (40) ◽  
pp. no-no
Author(s):  
A. A. BENGALI ◽  
S. M. CASEY ◽  
C.-L. CHENG ◽  
J. P. DICK ◽  
P. T. FENN ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Negative Ion ◽  
Metal Carbonyls ◽  
Group Vi ◽  
Unsaturated Group

Gas-phase study of the group VI transition metal tricarbonyl complexes by negative-ion photoelectron spectroscopy

1992 ◽  
Author(s):  
Ashfaq A. Bengali ◽  
Sean M. Casey ◽  
Chun-Lin Cheng ◽  
Jonathan P. Dick ◽  
P. T. Fenn ◽  
...  
Keyword(s):  
Transition Metal ◽  
Gas Phase ◽  
Photoelectron Spectroscopy ◽  
Negative Ion ◽  
Group Vi ◽  
Phase Study

scholarly journals Negative ion photoelectron spectroscopy confirms the prediction that D3h carbon trioxide (CO3) has a singlet ground state

2016 ◽  
Vol 7 (2) ◽  
pp. 1142-1150 ◽  
Author(s):  
David A. Hrovat ◽  
Gao-Lei Hou ◽  
Bo Chen ◽  
Xue-Bin Wang ◽  
Weston Thatcher Borden
Keyword(s):  
Gas Phase ◽  
Ground State ◽  
Photoelectron Spectroscopy ◽  
Radical Anion ◽  
Negative Ion ◽  
Singlet Ground State

The CO3 radical anion (CO3˙−) has been formed by electrospraying carbonate dianion (CO32−) into the gas phase.

ChemInform Abstract: 1,1,1-TRIS(HYDROXYMETHYL)PROPANEPHOSPHITE DERIVATIVES OF GROUP VI METAL CARBONYLS

1979 ◽  
Vol 10 (17) ◽  
Author(s):  
S. C. TRIPATHI ◽  
S. C. SRIVASTAVA ◽  
D. P. PANDEY ◽  
R. P. CHATURVEDI
Keyword(s):  
Metal Carbonyls ◽  
Group Vi ◽  
Derivatives Of

Carbonyl halides of the Group VI transition metals. XI. Dithiocyanatocarbonyl derivatives of molybdenum and tungsten(II)

1968 ◽  
Vol 21 (6) ◽  
pp. 1435 ◽  
Author(s):  
R Colton ◽  
GR Scollary
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Ammonium Chloride ◽  
Pure State ◽  
Ammonium Thiocyanate ◽  
Donor Ligands ◽  
Group Vi ◽  
Derivatives Of ◽  
And Tungsten

Reaction of ammonium thiocyanate with dihalocarbonyls of molybdenum and tungsten(11) leads to the elimination of ammonium chloride and the formation of a dithiocyanatocarbonyl complex of the transition metal. Although the thiocyanatocarbonyls themselves have not been isolated in a pure state, a number of substituted derivatives with phosphorus donor ligands have been prepared and characterized. In general these complexes are less stable than the corresponding carbonyl halide derivatives.

Studies in polymerization. XIII. The activated initiation of vinyl polymerization by metal carbonyls

1962 ◽  
Vol 268 (1335) ◽  
pp. 553-566 ◽  
Keyword(s):  
Kinetic Mechanism ◽  
Molybdenum Hexacarbonyl ◽  
Metal Carbonyls ◽  
Group Vi ◽  
Radical Intermediates ◽  
Vinyl Polymerization ◽  
Organic Halogen ◽  
Halogen Compounds ◽  
Iodine Compounds ◽  
Reaction Proceeds

It has been found that the hexaearbonyls of group VI metals in the presence of some organic halogen compounds are active initiators of vinyl polymerization. Molybdenum hexacarbonyl is the most active, and halogen compounds containing —CC1 3 , —CBr 3 are generally more effective than those with fewer halogen atoms joined to a single carbon. Fluorine and iodine compounds are inactive. A study has been made of the initiation of the polymerization of methyl methacrylate by the Cr(CO) 6 + CCl 4 system. The polymerization is markedly retarded by carbon monoxide. It is shown that the reaction proceeds through free-radical intermediates, and a kinetic mechanism for initiation is derived (equation (4)) leading to the expression (5) for the rate of chain starting. This quantity may be calculated from (5) with the aid of the numerical values in table 3. Kinetic observations are in satisfactory agreement with this mechanism. The nature of the participating reactions is discussed.

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