Zobrazeno 1 - 10
of 96
pro vyhledávání: '"I.G. Ross"'
Publikováno v:
Ultrasound in Medicine & Biology. 29:S14
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 38:603-610
The vibrational spectrum of 2,6-naphthyridine (point group C 2 h ) has been measured; the fundamentals are assigned. The electronic spectrum is recorded to 210 nm in solution, and the first two absorption regions studied in further detail. The first
Publikováno v:
Chemical Physics Letters. 26:329-333
The low-energy absorption system of dibenzofuran vapour has been re-measured at high resolution. The origin band (O) and the prominent band at O + 445 have different contours, and so have opposite polarization. In the solid state, the frequency of th
Autor:
I.G. Ross, P.J. Chappell
Publikováno v:
Chemical Physics Letters. 43:440-445
Detailed spectroscopic observations on the first 1 n, π * states of three different N-heterocycles are successfully modelled through vibronic coupling calculations incorporating a small number of adjusted but non-arbitrary parameters: in pyridine, t
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 37:857-865
The bond-stretching vibrations of H2O, NH3 and SO2 (also HDO and D2O) are treated computationally according to a model in which the bond oscillators are Morse oscillators, coupled only through a mass and bond-angle dependent kinetic-energy term. Each
Autor:
I.G. Ross, Daryl E. Freeman
Publikováno v:
Spectrochimica Acta. 16:1393-1408
A valence force field, including selected interaction constants, has been used to compute the thirty-three planar vibration frequencies of each of naphthalene, naphthalene-α-d4, naphthalene-β-d4 and naphthalene-d8. Starting with benzene-like force
Publikováno v:
Chemical Physics Letters. 21:233-241
The vibrational structure of the absorption spectrum of azulene near 3500 A (to the second excited singlet state, B is markedly altered by changing the molecular environment, even though the corresponding emission spectrum remains largely unchanged.
Autor:
Graham R. Hunt, I.G. Ross
Publikováno v:
Journal of Molecular Spectroscopy. 3:604-620
The first two electronic transitions of azulene have been photographed in the vapor, and the first transition in the pure crystal as well (4°K). The pure crystal spectrum is very diffuse; this is attributed to the disordered structure of the crystal
Publikováno v:
Journal of Molecular Spectroscopy. 20:312-320
In the visible spectrum of p-benzoquinone-h4 and -d4, two unusual types of intensity distribution along sequence bands have been previously recorded experimentally. Both types have in common an intensity maximum which is not a the first band of the s
Autor:
A.J. McHugh, I.G. Ross
Publikováno v:
Spectrochimica Acta Part A: Molecular Spectroscopy. 26:441-450
Type A, B and C band contours are computed (at 300°K), and their sub-band structure described, for molecules of the type of naphthalene and azulene (κ ~ —0.65, rotational levels significantly populated up to J = 120). Band contours of widely diff