Current interest in DNA-mediated electron transfer (ET) is focused on the question of how DNA is a good medium for ET. 1, 2 Designed oligomers possessing strong electron acceptors have been synthesized and used for such studies. 3-7 More recently, DNA containing modified nucleoside has proven to be very useful because the distance between a donor and an acceptor in duplex DNA could be accurately determined. 8, 9 We herein ...
