Excess volumes of mixtures of tetrabutyltin with branched and linear alkanes

1975 ◽  
Vol 71 (0) ◽  
pp. 1181 ◽  
Author(s):  
Geneviève Delmas ◽  
Pierre de Saint-Romain ◽  
Patricia Purves
Keyword(s):  
Excess Volumes ◽  
Linear Alkanes

Excess volumes and refractive indices in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems at 298.15 K

1987 ◽  
Vol 52 (12) ◽  
pp. 2839-2843 ◽  
Author(s):  
Jan Linek
Keyword(s):  
Methyl Ether ◽  
Excess Molar Volumes ◽  
Excess Volumes ◽  
Refractive Indices ◽  
Molar Volumes ◽  
Vibrating Tube Densimeter ◽  
Ether System

Excess molar volumes in the benzene-tert-amyl methyl ether and cyclohexane-tert-amyl methyl ether systems were measured by a vibrating-tube densimeter at 298.15 K and compared with the data for the methanol-tert-amyl methyl ether system determined previously. Besides, the refractive indices in both the systems were measured at the same temperature.

Intermolecular hydrogen transfer in unsaturated hydrocarbons induced by dimeric titanocene

1983 ◽  
Vol 48 (10) ◽  
pp. 2924-2936 ◽  
Author(s):  
Karel Mach ◽  
Lidmila Petrusová ◽  
Helena Antropiusová ◽  
Vladimír Hanuš ◽  
František Tureček ◽  
...  
Keyword(s):  
Hydrogen Transfer ◽  
Titanium Content ◽  
Esr Spectra ◽  
Stable Complex ◽  
Catalytic Complex ◽  
Substitution Reactions ◽  
Unsaturated Hydrocarbons ◽  
Linear Alkanes ◽  
Saturated And Aromatic Hydrocarbons ◽  
Intermolecular Hydrogen Transfer

μ-(η5 : η5-Fulvalene)-di-μ-hydrido-bis(η5-cyclopentadienyltitanium) and μ-(η5 : η5-fulvalene)-μ-chloro-μ-hydrido-bis(cyclopentadienyltitanium) form a thermally stable complex which catalyzes the intermolecular hydrogen transfer in unsaturated hydrocarbons, in addition to isomerizations and cyclizations. Cyclic hydrocarbons disproportionate under catalysis to saturated and aromatic hydrocarbons, while linear olefins yield predominantly linear alkanes and high molecular weight tar. The catalyst enables the hydrocarbon system to approach the thermodynamic equilibrium through a series of substitution reactions between alkyl- and allyltitanocene-like species and olefins and dienes. The catalytic complex was characterized by UV and ESR spectra. About one half of overall titanium content could be converted to mononuclear η3-allyltitanocene-like species, stable up to 400 °C. This exceptional thermal stability is ascribed to a firmly bound allyl containing ligand.

Excess volumes of (a polar liquid + an aromatic hydrocarbon) at the temperature 298.15 K

1995 ◽  
Vol 27 (12) ◽  
pp. 1349-1353 ◽  
Author(s):  
Wang Haijun ◽  
Su Zhongxing ◽  
Zhou Xiaoxian
Keyword(s):  
Aromatic Hydrocarbon ◽  
Excess Volumes ◽  
Polar Liquid

Excess enthalpies and excess volumes for (butane + butan-1-ol) at the temperatures (298.15, 323.15, and 348.15) K and pressures (5, 10, and 15) MPa

1994 ◽  
Vol 26 (12) ◽  
pp. 1275-1286 ◽  
Author(s):  
J.T. Sipowska ◽  
L.R. Lemon ◽  
J.B. Ott ◽  
P.R. Brown ◽  
B.G. Marchant
Keyword(s):  
Excess Volumes ◽  
Excess Enthalpies

scholarly journals Oxidation of Organic Compounds with Peroxides Catalyzed by Polynuclear Metal Compounds

Catalysts ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 186
Author(s):  
Georgiy B. Shul’pin ◽  
Lidia S. Shul’pina
Keyword(s):  
Catalytic Reactions ◽  
Metal Salts ◽  
Polynuclear Complexes ◽  
Simple Metal ◽  
Metal Compounds ◽  
Mononuclear Complexes ◽  
Iron Copper ◽  
Linear Alkanes ◽  
Oxidation Of Organic Compounds ◽  
Nickel Manganese

The review describes articles that provide data on the synthesis and study of the properties of catalysts for the oxidation of alkanes, olefins, and alcohols. These catalysts are polynuclear complexes of iron, copper, osmium, nickel, manganese, cobalt, vanadium. Such complexes for example are: [Fe2(HPTB)(m-OH)(NO3)2](NO3)2·CH3OH·2H2O, where HPTB-¼N,N,N0,N0-tetrakis(2-benzimidazolylmethyl)-2-hydroxo-1,3-diaminopropane; complex [(PhSiO1,5)6]2[CuO]4[NaO0.5]4[dppmO2]2, where dppm-1,1-bis(diphenylphosphino)methane; (2,3-η-1,4-diphenylbut-2-en-1,4-dione)undecacarbonyl triangulotriosmium; phenylsilsesquioxane [(PhSiO1.5)10(CoO)5(NaOH)]; bi- and tri-nuclear oxidovanadium(V) complexes [{VO(OEt)(EtOH)}2(L2)] and [{VO(OMe)(H2O)}3(L3)]·2H2O (L2 = bis(2-hydroxybenzylidene)terephthalohydrazide and L3 = tris(2-hydroxybenzylidene)benzene-1,3,5-tricarbohydrazide); [Mn2L2O3][PF6]2 (L = 1,4,7-trimethyl-1,4,7-triazacyclononane). For comparison, articles are introduced describing catalysts for the oxidation of alkanes and alcohols with peroxides, which are simple metal salts or mononuclear metal complexes. In many cases, polynuclear complexes exhibit higher activity compared to mononuclear complexes and exhibit increased regioselectivity, for example, in the oxidation of linear alkanes. The review contains a description of some of the mechanisms of catalytic reactions. Additionally presented are articles comparing the rates of oxidation of solvents and substrates under oxidizing conditions for various catalyst structures, which allows researchers to conclude about the nature of the oxidizing species. This review is focused on recent works, as well as review articles and own original studies of the authors.

ChemInform Abstract: EXCESS VOLUMES IN THE CRITICAL SOLUTION REGION

1982 ◽  
Vol 13 (7) ◽  
Author(s):  
T. E. BLOCK ◽  
N. F. JUDD ◽  
I. A. MCLURE ◽  
C. M. KNOBLER ◽  
R. L. SCOTT
Keyword(s):  
Excess Volumes ◽  
Solution Region
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