# Journal of Applied Spectroscopy

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 935-938

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 893-897

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 888-892

_{4}films, we studied the exciton–phonon interaction, which made it possible to interpret the absorption edge as the absorption of autolocalized excitons. The temperature dependence of the forbidden band gap is investigated.

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 791-795

*n*=

*n*

_{o}−

*n*

_{e}) of Rhodamine 6G and 4C solutions in glycerol upon excitation in the UV region of the absorption spectrum. The observed spectral dependences of Δ

*n*of the above dye solutions excited in the UV (short-wavelength) and visible...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 919-923

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 818-824

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 825-833

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 852-856

*n*

^{+}-type porous silicon of low (10–50%) porosity exhibit photoluminescence in the region 400–500 nm after a 5-month storage in an air atmosphere. The spectrum of blue photoluminescence of the least porous but strongly oxidized films has maxima at 417, 435, and 465 nm. The same spectrum structure manifests itself upon the introduction of an Er

^{3+}- and Yb

^{3+}-containing complex...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 786-790

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 763-769

_{2}, regardless of the polymer type, induces absorption in the pigment at 2.88 and ∼2.50 eV,...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 864-870

_{10}H

_{12}[Py(X)]

_{2}, C

_{2}B

_{9}H

_{11}Py(X), and C

_{2}B

_{9}H

_{10}BrPy(X) and of the salts of klozo-hydroborate anions B

_{10}H

_{10}

^{2−}and B

_{12}H

_{12}

^{2−}with the cations of quaternary pyridine bases (Py(X) is the pyridine and its derivatives) were investigated. The derivatives of decaborane(14) 6,9-bis(pyridine)-nido-decaborane(12) and 6,9-bis(3,4-dimethylpyridine)-nido...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 939-942

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 842-851

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 898-903

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 796-805

_{2}group is located in the β-position of pyrrole rings or in the para-position of meso-phenyl substituents, an intense line of the mode within the range...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 755-762

*N-*deuterated derivative in

*n-*octane at 77 K have been investigated, and the frequencies of normal vibrations in electronic states

*S*

_{0}and

*S*

_{1}have been determined. Calculation of normal vibrations of these molecules has been done and, on its basis, the experimental data are interpreted. It is shown that in the spectra,...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 929-931

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 770-777

^{1}H and

^{13}C and the yields of reaction products, the photolysis of methanol-

*d*

_{4}solutions of acetylpropionyl peroxide is investigated within the temperature interval 193–333 K. Polarization of all the protons of ethylethanoate is detected; it is shown that the latter is formed in several chemical reactions. The role of...

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 778-785

Journal of Applied Spectroscopy > 2000 > 67 > 5 > 904-909

^{16}O and

^{18}O have been identified. The thermal donors were formed during heat treatment of Ge:O crystals at 300 and 350°C. Absorption spectra were measured at room temperature and at 10 K. The formation of the thermal donors was accompanied by the appearance of three absorption...