The Raman Spectra of Phosphorus Methyl and Arsenic Methyl and the Force Constants of the Methyl Compounds of the Fifth Group Elements

摘要: The Raman spectra of P(CH3)3 and As(CH3)3 have been photographed studied in relation to the methyl compounds nitrogen, antimony bismuth. low lying frequencies all these molecules can be interpreted terms a pyramidal structure with groups acting as units. existence only two lines Sb(CH3)3 Bi(CH3)3 is attributed an accidental degeneracy resulting from relatively large mass central atom particular value apex angle. computed two‐constant valence force potential function are good agreement those observed. constants obtained tabulated.