Zobrazeno 1 - 10
of 80
pro vyhledávání: '"B.P. Asthana"'
Publikováno v:
Journal of Raman Spectroscopy. 33:720-725
Raman spectra of terephthalidine-bis-heptylaniline (TB7A) were recorded in the region 1125–1225 cm−1 from room temperature to 10 K at 18 different temperatures. The splitting of the ∼1165 cm−1 band, and the variation of the ratio of integrate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6785b312d0758c9b7d09fa72646f7d09
https://doi.org/10.1002/jrs.906
https://doi.org/10.1002/jrs.906
Hydrogen-Bonded Pyridine−Water Complexes Studied by Density Functional Theory and Raman Spectroscopy
Publikováno v:
The Journal of Physical Chemistry A. 105:9983-9989
Density functional theory (DFT) at the B3LYP/6-31++G(d,p) level was employed to obtain the optimized geometries and vibrational spectra of several pyridine(Py)−water(W) complexes with stoichiometric ratios ranging from 2:1 (Py2W) to 1:3 (PyW3). The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27a3e6634820d13ae0702783a6e31bfa
https://doi.org/10.1021/jp0122272
https://doi.org/10.1021/jp0122272
Publikováno v:
Chemical Physics Letters. 326:123-128
The technique of scanning multichannel Raman difference spectroscopy was used to determine the precise wavenumber shifts of the ν1 (C–H)/(C–D) and ν2 (CN) stretching modes in (CH3CN+CD3CN) mixtures with respect to pure CH3CN/CD3CN as a funct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a142a0ab908dbf78b9fb9133eac3de5e
https://doi.org/10.1016/s0009-2614(00)00728-4
https://doi.org/10.1016/s0009-2614(00)00728-4
Publikováno v:
Chemical Physics Letters. 296:611-618
The shifts and linewidth changes of three vibrational modes of C 6 H 5 Cl were studied in hydrogen-bonded binary mixtures C 6 H 5 Cl+CH 3 OH at various mole fractions of C 6 H 5 Cl, C =0.05, 0.1, 0.2, 0.3, 0.5, 0.7 and 0.9. The study reveals that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d095529465d45b4500b9b3f842cec994
https://doi.org/10.1016/s0009-2614(98)01037-9
https://doi.org/10.1016/s0009-2614(98)01037-9
Publikováno v:
Chemical Physics Letters. 209:390-396
The linewidths and frequency shifts of the two components of ν 1 (CN) stretching modes separated by ≈ 11 cm −1 have been studied as a function of temperature in the range 0 to – 175°C. Although the frequency shifts are quite small, 4–5 c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55f6d0f6f6abea003349ee5a9305e697
https://doi.org/10.1016/0009-2614(93)80036-o
https://doi.org/10.1016/0009-2614(93)80036-o
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 49:53-72
The IR and Raman spectra of 8-azaguanine and 8-azaadenine have been studied. The spectra of 8AG have been critically examined and compared with those of guanine and 9-methylguanine. Similarly, the spectra of 8-azaadenine have been examined and compar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1578e56b69a14bdc4e2dedb71bf9c77e
https://doi.org/10.1016/0584-8539(93)80261-8
https://doi.org/10.1016/0584-8539(93)80261-8
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 47:673-689
Vibronic spectra of 2,3-, 2,4-, and 2,5-dimethylanilines (DMA) have been recorded in the vapor phase and analysed primarily for ascertaining the frequencies of certain low lying fundamentals (< 1000 cm−1) which were observed earlier in infrared and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b71a8719b7a5aea24411b4d914dd521
https://doi.org/10.1016/0584-8539(91)80138-9
https://doi.org/10.1016/0584-8539(91)80138-9
Autor:
B.P. Asthana, H.M. Heise
Publikováno v:
Vibrational Spectroscopy. 56:1-2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c202cc6db8d411b46380729dd9bc17c
https://doi.org/10.1016/j.vibspec.2011.02.005
https://doi.org/10.1016/j.vibspec.2011.02.005
Publikováno v:
Chemical Physics Letters. 94:41-47
The isotropic Raman bandwidths and frequency shifts of the ν 1 (ring) mode of hydrogen-bonded species of C 5 H 5 N…HOCH 3 have been measured as a function of concentration of C 5 H 5 N in a mixture of C 5 H 5 N + CH 3 OH employing the technique of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a792ad002aa25e65235c8e9787e1e786
https://doi.org/10.1016/0009-2614(83)87207-8
https://doi.org/10.1016/0009-2614(83)87207-8
Autor:
B.P. Asthana, C.M. Pathak
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 41:1235-1242
The near and far i.r. spectra of C 6 H 5 TlCl 2 and C 6 H 5 TlBr 2 were recorded in the region 4000-20 cm −1 in the solid phase. A normal coordinate analysis (NCA) was carried out assuming C 2ν symmetry for both the molecules. Some new fundamental
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ce1bf8a0b03ab5b3f9a463b1d6b5ee8
https://doi.org/10.1016/0584-8539(85)80136-7
https://doi.org/10.1016/0584-8539(85)80136-7