The excircd singlet (n r;\*) state of planar ethylene is calculated in ;I CT0 basis set by a second-order perturbation method. It is shown that the transition energy is nearly independent of the Rydberg character of the x\* orbital and therefore electron correlation is introdnced.
Analysis of the Rydberg transition in ethylene sulphide
β Scribed by N. Basco; R.D. Morse
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 217 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Prominent fcaturcs of the vxuum ultraviolet spectrum of ethylene sulphide have been assigned to three Rydbcrg scrics. All rhrce convege to an ionization limit of 9.051 eV (73 000 cm-' ). The Rydberg orbitals of each series are classified xcordins to the magnitude of the qwntum defect (6).
π SIMILAR VOLUMES
Two Rydberg series are found in the electronic absorption spectra of the three difluorobenzenes which conveige to the lowest ionization potential. Superimposed to the first ionization continuum bands belonging to a Rydberg series related to a higher IP are found. The problem of its assignment is dis
Ethylene sulphide-propylene sulphide copolymers, prepared with anionic type catalysts, have been investigated by t3C NMR. The peaks have been assigned both in terms of diad and triad monomer sequences and in terms of tacticity. It has been shown that the propylene sulphide monomer units were directi