V. Khrustalev, K. Krasnov, T. Timofeeva
Apr 30, 2008
Citations
0
Influential Citations
5
Citations
Journal
Journal of Molecular Structure
Abstract
Abstract The 4-methoxy-6,6-dimethyl-5,6,7,8-tetrahydro[1,3]dioxolo[4,5- g ]isoquinolin-6-ium ( 1 ) and 2-(1 H -indol-3-yl)-1-ethanaminium (tryptaminium) ( 2 ) salts of 1,3-dimethyl-2,4,6-trioxoperhydro-pyrimidine-5-spiro-6′-{4′-methoxy-7′-(1,3-dimethyl-2,4,6-trioxoper-hydropyrimidin-5-yl)-5′,6′,7′,8′-tetrahydro[1,3]dioxolo[4,5- g ]naphthalene} ( 3 ) have been prepared and their structures have been investigated by single-crystal X-ray diffraction analysis. It has been found on the basis of the crystal packing arrangement as well as physical and chemical properties that derivatives 1 and 2 form unusually steady intermolecular sandwich-like complexes both in the crystal and in solution, which are stabilized by weak C H… n (O C) hydrogen bonds and π–π stacking. The interplay between the intermolecular π–π stacking and strong N H…O hydrogen bond interactions and its influence on the “sandwich” structures of 1 and 2 are discussed.