Inverters, electronic

Figure 2 Energy surfaces corresponding to the normal, barrierless, and inverted electron-transfer reactivity regions of Marcus theory.

Hetero-Diels-Alder reaction with inverted electron demand between a, 3-unsatu-rated carbonyl compounds (1-oxa-l,3-butadienes 11 Scheme 6) and enol ethers provides an access to 6-alkoxy-3,4-dihydro-2/f-pyrans 12 [31,32]. These heterocycles are also useful... 

Moreover, it is important to point out an inverted electron flux from the ion to the chloromethane molecule tempting to equilibrate the destabilized system. Finally, the last part of the dynamic trajectory, beyond 78 fs, corresponds to the effective formation of a... 

Dang X. and Hupp J. T. (1999), Interfacial charge-transfer pathways evidence for Mareus-type inverted electron transfer in metal oxide semiconductor/inorganic dye systems , J. Chem. Soc. 121, 8399-8400. 

Two significant aspects of the symmetry observed in the analysis of periodicity are the inverted electronic energy levels and the approach of Z/N —> 1 for all nuclides. The inversion is explained by the computational observation that electronic sub-levels respond differently to compression of an atom. 

The energy gap for this transfer is <0.15 eV. The Ne(2s) state, which contains four sublevels, decays radiatively to the 2p configuration, which is 0.7 eV lower in energy and contains ten sublevels, with a lifetime of about 10 sec. An inverted electronic energy level distribution is maintained because the decay of the 2p state to the Is configuration is much more rapid, with a lifetime of about 10 sec. Thus the 2p level becomes depleted relative to the... 

Fry, P.W., Itskevich, I.E., Mowbray, D.J., Skolnick, M.S., Finley, J.J., Barker, J.A., et al., 2000. Inverted electron-hole alignment in InAs-GaAs self-assembled quantum dots. Phys. Rev. Lett. 84, 733. 

Based upon the Jorgensen theory, the f-d transitions can be treated analogously to electron-transfer spectra. Since the f-d transitions in 5f-elements depend upon the atomic number Z in a way opposite to that observed for electron transfer transitions, they can be discussed as being due to inverted electron transfer. ... 

Fine-Structure Constants. Analysis of 115 transitions in the P, Q, and R branches of the fundamental band of NH" [7], [10, p. 85] and of 52 Q- and R-branch transitions in the fundamental band of NH" [6], [10, p. 85] gave the spin-orbit coupling constants A for the lowest vibrational levels v = 0 and 1 of the inverted electronic ground state X rij. Slightly higher are the values derived in the first study of the fundamental vibration-rotation spectrum of " NH" (48 R-branch transitions) by autodetachment spectroscopy [3]. The following results were obtained ... 

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