Determinations of the Energy and the Entropy Change Due to Hydrogen Bonding by the Use of the Near Ultraviolet Absorption—the Effect of the Chlorine Atom on the Proton-donating and the Proton-accepting Powers

1954 ◽  
Vol 76 (11) ◽  
pp. 3070-3073 ◽  
Author(s):  
Saburo Nagakura

1957 ◽  
Vol 26 (4) ◽  
pp. 881-886 ◽  
Author(s):  
S. Nagakura ◽  
M. Gouterman




1963 ◽  
Vol 85 (22) ◽  
pp. 3621-3624 ◽  
Author(s):  
Alsoph H. Corwin ◽  
David G. Whitten ◽  
Earl W. Baker ◽  
George G. Kleinspehn


1946 ◽  
Vol 14 (2) ◽  
pp. 101-112 ◽  
Author(s):  
H. Sponer ◽  
Hildegard Stücklen




1974 ◽  
Vol 52 (13) ◽  
pp. 2513-2515 ◽  
Author(s):  
R. A. Back ◽  
C. Willis

The near-ultraviolet absorption spectrum of diimide in liquid ammonia at −50 °C is shifted about 500 Å to the red compared with the gas-phase spectrum, with λmax = 4000 Å. The spectrum is also broadened and the vibrational structure largely obscured. It is suggested that hydrogen bonding is responsible for these changes.Diimide is much more stable in liquid ammonia between −65 and −38 °C than in the gas phase at room temperature. A first-order decay is observed with Arrhenius parameters of A = 1.9 × 103 s−1 and E = 6.6 kcal/mol; this is always preceded by a more rapid, higher-order initial decay which may be related to the rapid decomposition observed during vaporization.



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