Models for photochemical electron transfer at fixed distances. Porphyrin-bicyclo[2.2.2]octane-quinone and porphyrin-bisbicyclo[2.2.2]octane-quinone
作者:Alvin D. Joran、Burt A. Leland、George G. Geller、John J. Hopfield、Peter B. Dervan
DOI:10.1021/ja00332a062
日期:1984.10
We report the syntheses of three rigidly linked side-by-side porphyrinquinone molecules 2-4 whose edge-to-edge distances are fixed at 6, 10, and 14 A (Figure 1). The spacer units bicyclo[2.2.2]octane and bibicyclo[2.2.2]octane prevent translational displacement and only allow rotational freedom. Our preliminary studies of the fluorescence yields of both the free base PLQ 2a-4a and Zn PLQ 2b-4b systems