RYDBERG STATES IN ALKYL CHLORIDES

Abstract

Electronic spectra of several alkyl chlorides in the energy range $55 000 cm^{-1}$ to $90 000 cm^{-1}$ will be presented with intensities and oscillator strengths. Correlations of absorption bands arising from the non-bonding electrons of chlorine will be given, and an oscillator strength sum rule for these transitions is obtained. Deviation from this rule in n-butyl chloride reveals a possible $\sigma^{*} \leftarrow \sigma$ transition in that compound.