Photochemical reaction of barbital (1a) and its derivatives gave Norrish type II reaction products. Their photochemical reactivities is discussed in comparison with those of other nitrogen-containing carbonyl compounds.
Thermodynamic Stabilities of Linear and Crinkled Tapes and Cyclic Rosettes in Melamine−Cyanurate Assemblies: A Model Description
作者:Anna G. Bielejewska、Christopher E. Marjo、Leonard J. Prins、Peter Timmerman、Feike de Jong、David N. Reinhoudt
DOI:10.1021/ja010664o
日期:2001.8.1
N-disubstituted melamines 1 and N-substituted cyanuricacid or 5,5-disubstituted barbituric acid derivatives 2 into linear or crinkledtapes and cyclic rosettes via cooperative hydrogen bond formation. The model description considers all possible stereoisomeric tapestructures consisting of two to eight different components (270 different species in total) and one cyclic hexameric rosettestructure. Furthermore