The First Spectroscopic Observation of an Equilibrium between a Digermene and Germylenes and Experimental Determination of a Bond Dissociation Energy of a Ge-Ge Double Bond

1998 ◽  
Vol 27 (3) ◽  
pp. 239-240 ◽  
Author(s):  
Kuniyuki Kishikawa ◽  
Norihiro Tokitoh ◽  
Renji Okazaki
Keyword(s):  
Double Bond ◽  
Experimental Determination ◽  
Bond Dissociation Energy ◽  
Dissociation Energy ◽  
Spectroscopic Observation ◽  
Bond Dissociation

scholarly journals [(ClImDipp)PP(Dipp)][GaCl4]: a polarized, cationic diphosphene

2016 ◽  
Vol 52 (7) ◽  
pp. 1409-1412 ◽  
Author(s):  
Kai Schwedtmann ◽  
Michael H. Holthausen ◽  
Chris H. Sala ◽  
Felix Hennersdorf ◽  
Roland Fröhlich ◽  
...  
Keyword(s):  
Double Bond ◽  
Lewis Acid ◽  
Bond Dissociation Energy ◽  
Dissociation Energy ◽  
Bond Dissociation

The reaction of neutral diphosphanide [(ClImDipp)P–P(Cl)(Dipp)] with the Lewis acid GaCl3 yields cationic diphosphene [(ClImDipp)PP(Dipp)]+, which is explained by a low P–Cl bond dissociation energy. The polarized PP double bond in [(ClImDipp)PP(Dipp)]+, allows for its utilization as acceptor for nucleophiles, such as Cl− or PMe3.

Determination of the heat of formation of trimethylindium and calculation of the mean In—CH3 bond dissociation energy

1968 ◽  
Vol 46 (10) ◽  
pp. 1633-1634 ◽  
Author(s):  
W. D. Clark ◽  
S. J. W. Price
Keyword(s):  
Bond Dissociation Energy ◽  
Dissociation Energy ◽  
Chloroform Solution ◽  
Kinetic Studies ◽  
Heat Of Formation ◽  
Enthalpy Of Reaction ◽  
Kcal Mole ◽  
Bond Dissociation ◽  
The Mean

The enthalpy of reaction of In(CH3)3,c with a chloroform solution of bromine is −162.5 kcal mole−1. With this value ΔHf0298[In(CH3)3,c] = 29.5 kcal mole−1 and ΔHf0298[In(CH3)3,g] = 41.1 kcal mole−1. Combining the latter with ΔHf0298[CH3,g] = 33.2 kcal mole−1 and ΔHf0298[In,g] = 58.2 kcal mole−1 then gives E(In—CH3) = 38.9 kcal mole−1. From previous kinetic studies D[(CH3)2In—CH3] + D[In—CH3] = 87.9 kcal mole−1. Hence D[CH3In—CH3] = 28.8 kcal mole−1.

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