Chemistry Letters, Vol.32, No.10, 926-927, 2003
Crystal structures of 9,10-bis[bis(2-pyridylmethy)aminomethyl]anthracene and its ZnCl2 complex. Intramolecular pi-pi interaction between anthracene and ZnCl2-complexed pyridine
Anthracene derivatives having dipicolylaminomethyl group exhibited an emission-intensity enhancement in the presence of Zn2+. On the basis of an X-ray crystallographic analysis, the binding of Zn2+ to the dipicolylaminomethyl unit inhibits the photoinduced electron transfer process. Intramolecular pi-pi interactions between the anthracene and the ZnCl2-complexed pyridine were observed.