40.液体クラスタービーム質量分析法による液相中の多環芳香族の会合構造の検討

抄録

Upon crystallization from mixtures containing five- and six-membered nitrogen heteroaromatic compounds, intermolecular compounds of 1:1 molar ratio are isolated as crystals in which hydrogen bonding occures between the twe molecules. However,there is very little direct experimental evidence to show how crystals of the intermolecular compound are formed through the hydrogen-bondong interaction. We have observed by the measurement of mass spectra of clusters that the hydrogen-bonding complex of indole and isoquinoline is a definate species which forms clusters in solution composed of indole and isoquinoline molecules. This system demonstrates the primary process for the nucleation of the intermolecular compounds.