Contra-thermodynamic Behavior in Intermolecular Hydrogen Transfer of Alkylperoxy Radicals

ChemPhysChem ◽  
2007 ◽  
Vol 8 (13) ◽  
pp. 1969-1978 ◽  
Author(s):  
Jim Pfaendtner ◽  
Linda J. Broadbelt
Keyword(s):  
Hydrogen Transfer ◽  
Thermodynamic Behavior ◽  
Intermolecular Hydrogen Transfer ◽  
Alkylperoxy Radicals

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.

A study of intermolecular hydrogen transfer from naphthenes to 1-hexene over zeolite catalysts

2016 ◽  
Vol 516 ◽  
pp. 153-159 ◽  
Author(s):  
O.V. Potapenko ◽  
V.P. Doronin ◽  
T.P. Sorokina ◽  
O.V. Krol ◽  
V.A. Likholobov
Keyword(s):  
Hydrogen Transfer ◽  
Zeolite Catalysts ◽  
Intermolecular Hydrogen Transfer

Cooperative effects of different temperatures and pressures on the initial and subsequent decomposition reactions of the nitrogen-rich energetic crystal 3,3′-dinitroamino-4,4′-azoxyfurazan

2016 ◽  
Vol 18 (10) ◽  
pp. 7093-7099 ◽  
Author(s):  
Qiong Wu ◽  
Weihua Zhu ◽  
Heming Xiao
Keyword(s):  
Hydrogen Transfer ◽  
Bond Breaking ◽  
Cooperative Effects ◽  
Decomposition Reactions ◽  
Different Temperatures ◽  
Intermolecular Hydrogen Transfer ◽  
Subsequent Decomposition

The initiation mechanisms of 3,3′-dinitroamino-4,4′-azoxyfurazan at different temperatures and pressures are bimolecular intermolecular hydrogen transfer and unimolecular N–NO2 bond breaking.

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