Ab initio calculations ~vc the equilibrium stn~cturc 01 the ammonia dimcr czuion as a complcn between the ammonium ion (N;if ) and the aminyl radical (NH2). Dissocialion energies of this calion are e~~lua~cd IO be about 1.0 and 1.7 CV [or the wo signiticant channels inlo NH; +NH, and NH, +NH;. respe
Endor spectrum and heat of dissociation of the 9,10-dipropylanthracene dimer cation
β Scribed by Fujito Nemoto; Kazuhiko Ishizu
- Publisher
- Elsevier Science
- Year
- 1981
- Tongue
- English
- Weight
- 252 KB
- Volume
- 84
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
The ENDOR spectrum of fhe V.lO-d~propylant~cne (DPA) Q~IO". genmntcd by ou&tlon ,=.f DPA m CHIC& =,,_ mnmg = 10% CF,COOH and 6% (CFsCO)IO. stihrblts clwl~ the evlstence of the duner and monomer cation species The heat of dlssoclatlon of the dlmer catlon m CH2C12 IS estimated to be 22 3 kJ mol-'
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Long-lived radical cation dimers of diethyl sulfide, di-n-propyl sulfide and di-n-butyl sulfide have been prepared via an association reaction of the dialkyl sulfide radical cation with the dialkyl sulfide in the cell of a Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometer. Under l
The dirner radical cation of dimethyl sclenide has been identified in a y-irradiated single crysti of the parent compound. its main (even%) ESR spectrum showing hyperf& coupling to twelve equivalent hydrogen% Also, the relative intensity of the naturally abundant "SC satellite spectrum is in agreem
EPR, ENDOR and TRIPLE resonance spectra were recorded for 1-amino-9,lO-anthraquinone (1-aminoAQ), 2-aminoAQ, 1,2-diaminoAQ, 1,4-diaminoAQ, 1,5diaminoAQ and 2,CdiaminoAQ anion radicals in the solution phase. The rotation of the amino groups is discussed with reference to the experimental data. Rotati