Relativistic effects in general lead to a radial contraction of the s and p orbitals and to an expansion of the d this is particularly true in the case of Hf because of the increase of relativistic effects with Z2.[351 The result is a volume contraction of the Hf phosphide because of its smaller, st
Electron and singlet energy transfer in rigid supramolecular systems
โ Scribed by Andrew H.A. Clayton; Kenneth P. Ghiggino; James M. Lawson; Michael N. Paddon-Row
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 770 KB
- Volume
- 80
- Category
- Article
- ISSN
- 1010-6030
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Intramolecular transfer processes in porphyrin-phthalocyanine heterodimers covalently linked by an oxygen atom (restricted conformation) and/or by a flexible chain of variable length were investigated. Fluorescence spectroscopy shows that singlet-singlet energy transfer from the porphyrin to the pht
Intramolecular singlet-singlet energy transfer is reported in a series of compounds containing a 1,4-dimethoxy-naphthalene chromophore as the energy donor and a cyclic ketone as the energy acceptor connected by rigid, elongated, saturated hydrocarbon bridges with an effective length of 4,6, and 8 C-
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a โFull Textโ option. The original article is trackable v
Metastable electronically-excited NFIZ+, t)' = 0 molecules are produced by the rapid reactions of ground state O(3P), N(4S') and H(2S) atoms with NF2 radicals generated by thermal dissociation of Fi$?4 in a flow system, The IA, v' = 0 state of HP has also been detected from the reactions H+NF2, 0 tN
The emission spectra of polyaeenaphthylene (PA&T) and polyvinyluaphthalene (PVN) tihus and solutions have heen compared at room temperature and 77ยฐK. In organic glasses at 77'K, normal fluoresceuee and phosphorescence are observed for both polymers. Quenching of PAcN phosphorescence by piperylene in