Photoelectron spectrum methanol

The thermal decomposition of some 3,5-disubstituted-l,2,4-thiadiazoles has been studied and some nonisothermal kinetic parameters have been reported <1986MI239>. Polarographic measurements of a series of methylated 5-amino-l,2,4-thiadiazoles show that thiadiazoles are not reducible in methanolic lithium chloride solution, while thiadiazolines are uniformily reduced at 0.5 = — 1.6 0.02 V. This technique has been used to assign structures to compounds which may exist theoretically as either thiadiazoles or thiadiazolines <1984CHEC(6)463>. The photoelectron spectrum for 1,2,4-thiadiazole has been published <1996CHEC-II(4)307>. 

Fig. 6. He 11(40.8 eV) ultraviolet photoelectron spectrum of CH3OH adsorbed on Cu(llO). (la) Clean Cu(llO) (Ib) Cu(llO) with CH3OH adsorbed at 140 K (Ic) Cu(llO) with CHjOH adsorbed at 140 K and heated to 300 K. Part II shows the difference spectra and the spectrum for gaseous methanol (38). Reprinted with permission of North-Holland Publishing Company, Amsterdam (in press).

Methanol and other lower aliphatic alcohols have been studied in detail by use of the quasiequilibrium theory of mass spectra by Friedman et This was the reason that alcohols were the first larger molecules to be studied in the tandem machine at Stockholm. It is therefore interesting to find that the comparison of the breakdown graph and photoelectron spectrum of methanol in Fig. 10 indicates that the mass-spectrometric dissociation of at least this alcohol does not seem to be ruled by any statistical laws. 

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