scholarly journals The Reaction of Carbon Monoxide with Organometallic Compounds. X. The Reaction of Carbon Monoxide with Phenyl Derivatives of Transition Metals

1965 ◽  
Vol 38 (4) ◽  
pp. 636-639 ◽  
Author(s):  
Membo Ryang ◽  
Kunihisa Yoshida ◽  
Hidejiro Yokoo ◽  
Shigeru Tsutsumi
Keyword(s):  
Carbon Monoxide ◽  
Transition Metals ◽  
Organometallic Compounds ◽  
Derivatives Of

Carbonyl halides of the Group VI transition metals. V. Carbon monoxide carriers and some sulphur and nitrogen derivatives of molybdenum halocarbonyls

1968 ◽  
Vol 21 (1) ◽  
pp. 15 ◽  
Author(s):  
R Colton ◽  
GR Scollary ◽  
IB Tomkins
Keyword(s):  
Carbon Monoxide ◽  
Transition Metals ◽  
Direct Interaction ◽  
Group Vi ◽  
Derivatives Of

The blue compounds MX2(CO)2(Ph3P)2 (M = Mo and W, X = Cl and Br) have been shown to absorb carbon monoxide very readily indeed to form the corresponding tricarbonyls, and as reported earlier, the tricarbonyls may be easily converted into the dicarbonyls. The dicarbonyl is therefore a carbon monoxide carrier. The compounds Mo(CO)3 dtc2 and Mo(CO)2 dtc2 (dtc = diethyldithiocarbamate) also represent a carbon monoxide carrying system, but in this case both compounds are rather unstable. The compounds MoX2(CO)2 btp2 (btp = N-n-butylthiopicolinamide; X = Cl, Br) have been prepared by direct interaction of the ligand and the appropriate halocarbonyl. Although these compounds are believed to be monomeric they do not absorb carbon monoxide.

Mass Spectra of Organometallic Compounds. IV. Some Mononuclear Fluorocarbon Derivatives of Transition Metals

1969 ◽  
Vol 23 (2) ◽  
pp. 137-147 ◽  
Author(s):  
R. B. King
Keyword(s):  
Transition Metals ◽  
Mass Spectrometer ◽  
Mass Spectra ◽  
Organometallic Compounds ◽  
Metal Fluoride ◽  
Derivatives Of ◽  
Neutral Metal

The mass spectra of the following fluorocarbon derivatives of transition metals have been investigated: (a) the perfluoroalkyl derivatives RfMo (CO)3C5H5 ( Rf = CF3 and C3F7); (b) the perfluoroacyl derivatives CF3COM(CO)3C6H5 (M = Mo and W), C3F7COM(CO)3C5H5 (M = Mo and W), and C3F7COFe(CO)2C6H6; (c) the perfluoraryl derivatives RfFe(CO)2C5H5 ( Rf/ = C6F5, p-HC6F4, 3, 4-H2C6F3, and p-CF3C6F4); (d) the hexafluorobutyne derivatives [(CF3)2C]3 MNCCH3 (M = Mo and W); and (e) the bis (trifluoromethyl)tetramethylbicyclo-[2.2,2] octatriene complexes C14H14F6Fe (CO)3 and C5H5CoC14H14F6. Unusual features observed in these mass spectra include the following: (a) Evidence for elimination of the neutral metal fluoride fragments FeF2 and C5H5CoF; (b) evidence for the elimination of neutral HF and CF2 fragments; (c) evidence for the elimination of a bridge in the bicyclo [2,2,2] octatriene derivatives; (d) decarbonylation of RfCOMo (CO)3C5H5 compounds, but not their tungsten analogs, in the mass spectrometer; and (e) evidence for the eliminations of C4F4 and CH3CN fragments in the mass spectra of the [(CF3)2C2]3MNCCH3 complexes.

Substituted carbonyl derivatives of the Group VI transition metals. IV. Reactions of some arene-metal tricarbonyls with Triaryl-phosphine and -arsine ligands

1973 ◽  
Vol 26 (3) ◽  
pp. 655 ◽  
Author(s):  
JA Bowden ◽  
R Colton ◽  
CJ Commons
Keyword(s):  
Carbon Monoxide ◽  
Solid State ◽  
Transition Metals ◽  
Steric Effects ◽  
Group Vi ◽  
Decomposition Products ◽  
Carbonyl Derivatives ◽  
Derivatives Of

The reactions of triphenylphosphine and triphenylarsine with (π- arene)M(CO)3 (M = Cr, Mo, W) to yield fac-M(CO)3(RPh3)3 (R = P, As) have been reexamined. Anomalies in the earlier literature have been resolved by the isolation of two solid state forms of each complex and by a study of the decomposition products of these compounds. Tricarbonyl complexes of tritolyl-phosphines and -arsines are also reported and their behaviour suggests steric effects initiate decomposition. In addition, a number of (π-arene)M(CO)3 compounds were shown to react with carbon monoxide to form M(CO)6.

Carbonyl halides of the Group VIII transition metals. V. Halocarbonyl derivatives of ruthenium(III) and ruthenium(II)

1971 ◽  
Vol 24 (5) ◽  
pp. 903 ◽  
Author(s):  
R Colton ◽  
RH Farthing
Keyword(s):  
Carbon Monoxide ◽  
Transition Metals ◽  
Formic Acid ◽  
Direct Reaction ◽  
Group Viii ◽  
Reaction Solution ◽  
Derivatives Of ◽  
Hydrohalic Acid

Formic acid in the appropriate hydrohalic acid both carbonylates and reduces ruthenium trihalides, but the nature of the products isolated depends upon the identity of the halogen. In the chloro system the first product is the pentachloro-carbonylruthenate(III) ion, [Ru(CO)Cl5]2-, and this is then reduced to the tetra- chlorocarbonylaquoruthenate(II) ion, [Ru(CO)(H2O)Cl4]2-. More prolonged reaction gives [Ru(CO)2Cl4]2- and the ultimate product is [Ru(CO)3Cl3]-. ��� In the bromo system there was no evidence for the formation of an aquo-ruthenium(II) species and the iodo system was even more simple as only [Ru(CO)2I4]2- and [Ru(CO)3I3]- were observed. ��� The direct reaction between carbon monoxide and RuX3 in methanol produces compounds of the type Ru(CO)X3 (X = Cl, Br) and the corresponding anions [Ru(CO)X5]- have been isolated and characterized. ��� In all cases the halocarbonyl anions could be isolated by the addition of suitable cations to the solutions. In most cases the parent halocarbonyls themselves were isolated by evaporation of the reaction solution without the addition of cations.

Approximation of adsorption heats of carbon monoxide on transition metals by means of an empirical model

1983 ◽  
Vol 48 (10) ◽  
pp. 2735-2739
Author(s):  
Jiří Fusek ◽  
Oldřich Štrouf ◽  
Karel Kuchynka
Keyword(s):  
Carbon Monoxide ◽  
Heat Capacity ◽  
Transition Metals ◽  
Molar Heat Capacity ◽  
Metal Adsorption ◽  
Heat Of Fusion ◽  
Class Structure ◽  
Fundamental Parameters ◽  
Adsorption Heats ◽  
Pauling Electronegativity

The class structure of transition metals chemisorbing carbon monoxide was determined by expressing the following fundamental parameters in the form of functions: The molar heat capacity, the 1st and 2nd ionization energy, the heat of fusion, Pauling electronegativity, the electric conductivity, Debye temperature, the atomic volume of metal. Adsorption heats have been predicted for twelve transition metals.

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.

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