Vibrational spectra of nucleic acid constituents—I

摘要: Abstract Laser-Raman spectra and i.r. of polycrystalline cytosine cytosine-d3 have been obtained. In-plane fundamentals assigned to absorption bands Raman lines on the basis deuteration shifts, comparison with four isotopic analogs uracil, a normal coordinate calculation. A valence force field thirteen transferred sixteen refined constants was employed calculate total forty-three frequencies, obtain potential energy distribution Cartesian displacements. Several skeletal vibrations appear be characteristic for pyrimidine bases nucleic acids in general.