Browsing by Author "Mollère, Phillip D."
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Item Open Access Photoelectron spectra and molecular properties. 15, The effects of α- and β-silyl substituents on π-systems(1972) Mollère, Phillip D.; Bock, Hans; Becker, Gerd; Fritz, GerhardThe photoelectron spectra of substituted ethylenes, H 2 C=CHX (X = H, CH 3, SiH 3, CH 2CH 3, CH 2SiH 3) are discussed in the light of results of CNDO-type molecular orbital calculations. The characteristic shifts of the first bands are explained in terms of a qualitative model for the substituent effects of α- and β-silyl groups upon π-systems.Item Open Access Photoelectron spectra and molecular properties. 20, Dimethyl ether, methoxysilane, and disiloxane(1973) Bock, Hans; Mollère, Phillip D.; Becker, Gerd; Fritz, GerhardThe photoelectron (PE) spectra of methyl and silyl ethers are assigned and correlated on the basis of CNDO/2-SCF-MO calculations. The dynamic behavior of the individual orbitals is discussed in terms of electronic and geometric perturbations of the ether system.Item Open Access Photoelectron spectra and molecular properties. 21, Dimethyl sulfide, methyl silyl sulfide, and disilyl sulfide(1973) Mollère, Phillip D.; Bock, Hans; Becker, Gerd; Fritz, GerhardThe photoelectron spectra of methyl and silyl sulfides are assigned on the basis of modified CNDO-SCF-MO calculations. The orbital sequence (2b1, 4a1, 3b2) is found to be independent of conformation. The static geometry of the sulfides is in keeping with a smaller charge shift to sulfur accompanying the carbon-silicon exchange. Comparison of the results wit those of the analogous ethers lends support to the previous assignment of the latter.