ISSN:
0006-3525
Schlagwort(e):
Chemistry
;
Polymer and Materials Science
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Optical rotatory dispersions between 200 and 600 mμ are presented for mononucleosides and 5′-mononucleotides in neutral, acid, and in some cases alkaline solutions. All display a single Cotton effect in the ultraviolet region (above 220-240 mμ); the purine ones are negative in sign and the pyrimidine ones positive, with the crossovers (zero rotations) in most cases close to the wavelengths of their respective absorption maxima. The visible rotatory dispersions obey the one-term Drude equation, except for TMP and UMP, which show anomalous dispersions. The rotational strengths of the dichroic bands were estimated from the Cotton effect profiles; cytosine mononucleotides and mononucleotides show the strongest rotational strengths among the compounds studied.
Zusätzliches Material:
9 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/bip.1966.360040603
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