Abstract

Preliminary fluorescence and time-resolved microwave conductivity (TRMC) measurements are reported for the novel triad, DMA[4]DMN[8]DCV, in which the three chromophores, DMA (N,N-dimethylaniline), DMN (dimethoxynaphthalene), and DCV (dicyanovinyl), are connected via bridges comprising linearly fused norbornyl and bicyclo[2.2.0]hexyl units, four and eight bonds in length. The triad, DMA[4]DMN[8]DCV, exists in two noninterconvertible syn and anti diastereomeric forms, the former having a U-shaped geometry and the latter having an S-shaped geometry. Samples of the two stereoisomers, labeled H and L, were obtained, but the actual stereochemistry, syn or anti, of each isomer is presently unknown

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