[Interactions between nucleotide bases in coplanar and stacking dimers under vacuum. Mass spectrometric study].
New temperature-dependent field--ionization mass-spectrometric method is described. It allows to measure enthalpies of associates in vacuum. An analysis of all the experimental results led to a conclusion that interactions in coplanar dimers of nucleic acid bases are stronger than in the stacking ones. A comparison between the vacuum measurements and theoretical data is made.
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D013058:Mass Spectrometry; D009690:Nucleic Acid Conformation; D009711:Nucleotides; D011740:Pyrimidine Dimers; D013696:Temperature; D013816:Thermodynamics; D014618:Vacuum
D009711:Nucleotides; D011740:Pyrimidine Dimers
Vzaimodeĭstviia v komplanarnykh i stopochnykh dimerakh osnovaniĭ nukleinovykh kislot v vakuume. Mass-spektrometricheskie issledovaniia.