Zobrazeno 1 - 10
of 22
pro vyhledávání: '"R.P. Brint"'
Publikováno v:
Journal of Molecular Spectroscopy. 216:151-158
The 3A2(nπ*)→1A1X (T1→S0) phosphorescence excitation spectrum of jet-cooled xanthione was investigated in the region 14 920–17 600 cm−1. The structure observed is shown to be due to the T1←S0 absorption and an assignment in terms of the vi
Publikováno v:
Journal of Molecular Spectroscopy. 214:80-86
The T1←S0 absorption spectrum of 4H-pyran-4-thione (PT) was measured in a static cell at room temperature (550–620 nm) and in a seeded cold supersonic jet (580–600 nm) using the cavity ring-down (CRD) method. In the static cell absolute extinct
Publikováno v:
Chemical Physics Letters. 287:403-411
The very sensitive cavity ring-down method has been applied to the measurement of the absorption of 4-H-1-benzopyrane-4-thione (BPT) in a supersonic jet in the wavelength region of the S0→T1 and S0→S1 transition between 15800 and 16650 cm−1. Th
Publikováno v:
The Journal of Physical Chemistry A. 101:7735-7741
The solvent spectral shifts of the S0 f T1 origin bands of jet-cooled 4H-pyran-4-thione (PT) and 4H-1benzopyran-4-thione (BPT) were observed in phosphorescence excitation spectra. Van der Waals complexes (1:1) of seed molecules with the carrier gas w
Publikováno v:
Chemical Physics. 217:83-98
The phosphorescence excitation spectrum of isolated 4-H-1-benzopyrane-4-thione molecules (BPT) in a pulsed supersonic jet was investigated by direct excitation of the first excited triplet state, S 0 → T 1 . The electronic origin at 15828 cm −1 i
Publikováno v:
Chemical Physics Letters. 264:605-613
The multiphoton (one-colour) excitation spectrum of jet-cooled 4-H-1-benzopyrane-4-thione (BPT) is investigated in the wavelength region from 570 to 640 nm. The emission from BPT after multiphoton excitation was detected in two wide ranges in the blu
Publikováno v:
Journal of Organometallic Chemistry. 258:C57-C60
Comparison of the 57 Fe Mossbauer spectra of series of related M 3 , M 4 and M 5 clusters has enabled correlations to be made between the Mossbauer parameters δ (isomer shift) and q (quandrupole splitting), and the type of iron site present, viz. Fe
Publikováno v:
Journal of Organometallic Chemistry. 247:61-70
The 57 Fe Mossbauer spectra of related iron cluster carbides and nitrides were measured at liquid nitrogen temperatures. The isomer shift and quadrupole splitting parameters are reported. A correlation of quadrupole splittings with the known or impli
Publikováno v:
Inorganic and Nuclear Chemistry Letters. 16:391-396
The isoelectronic-isolobal description of units in boranes, metalloboranes, and metallo-clusters is examined with self-consistent charge calculations. The two electron-three orbital model is appropriate for {BH} units in boranes but metallo units use
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