Quantum-chemical calculations are reported, based on an upgraded version of the QCFF/PI Hamiltonian, of ground ( 1A) and excited ( 1B) state properties of 4a,4b\_dihydrophenanthrene (DHP), the second most important product of cis-stilbene deactivation. The computed equilibrium geometries and adiabat
Resonance Raman spectra of 4a,4b-dihydrophenanthrene, the photocyclization product of cis-stilbene
β Scribed by Jon-Marc Rodier; Xiaopei Ci; Anne B. Myers
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 698 KB
- Volume
- 183
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract An Extended __HΓΌckel__ MO treatment of the system __cis__βstilbene (I)β4a, 4bβdihydrophenanthrene (II) indicates that the concerted photocyclisation is a conrotatory process of the first excited electronic state. The activation energies for the photocyclisation and for the thermal ring
Transient resonance Raman spectra of transstilbene in n-hexane have been obtained using two pulsed lasers at 266 and 585 nm. The former was used to pump the molecule to the fust excited singlet state (Sr) and the latter to proble spontaneous Raman scattering in resonance with the S, + Sr electronic