Colored supramolecular charge-transfer host system using 10,10′-dihydroxy-9,9′-biphenanthryl and 2,5-disubstituted-1,4-benzoquinone
(10,10′-dihydroxy-9,9′-biphenanthryl と 2,5-disubstituted-1,4-benzoquinoneを用いた電荷移動的着色を呈する超分子ホスト系)