TY - JOUR
T1 - Synthesis and charge transfer complexation of chiral polynitrohelicenes
AU - Okubo, Hitoshi
AU - Nakano, Daisuke
AU - Yamaguchi, Masahiko
AU - Kabuto, Chizuko
PY - 2000
Y1 - 2000
N2 - 1,12-Dimethylbenzo[c]phenanthrene-5,8-dinitrile is nitrated at symmetrical positions giving 2,11-dinitro-, 4,9-dinitro, and 2,4,9,11-tetranitrohelicenes depending on the reaction conditions. The electron-deficient helicenes form charge-transfer (CT) complexes with pyrene in the solution as well as in the solid state. Crystal of the CT complex obtained from either (P)-or (±)-tetranitrohelicene possesses columnar structure but with different helicity, diameter, and pitch.
AB - 1,12-Dimethylbenzo[c]phenanthrene-5,8-dinitrile is nitrated at symmetrical positions giving 2,11-dinitro-, 4,9-dinitro, and 2,4,9,11-tetranitrohelicenes depending on the reaction conditions. The electron-deficient helicenes form charge-transfer (CT) complexes with pyrene in the solution as well as in the solid state. Crystal of the CT complex obtained from either (P)-or (±)-tetranitrohelicene possesses columnar structure but with different helicity, diameter, and pitch.
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U2 - 10.1246/cl.2000.1316
DO - 10.1246/cl.2000.1316
M3 - Article
AN - SCOPUS:0034344718
SP - 1316
EP - 1317
JO - Chemistry Letters
JF - Chemistry Letters
SN - 0366-7022
IS - 11
ER -