PRESSURE-INDUCED D-PI CHARGE-TRANSFER IN ONE-DIMENSIONAL PHTHALOCYANINE CONDUCTORS, NIPC(ASF6)(0.5) AND COPC(ASF6)(0.5)

Authors
HIEJIMA T YAKUSHI K
Citation
T. Hiejima et K. Yakushi, PRESSURE-INDUCED D-PI CHARGE-TRANSFER IN ONE-DIMENSIONAL PHTHALOCYANINE CONDUCTORS, NIPC(ASF6)(0.5) AND COPC(ASF6)(0.5), The Journal of chemical physics, 103(10), 1995, pp. 3950-3959
Citations number
47
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The Journal of chemical physics → ACNP
ISSN journal
00219606
Volume
103
Issue
10
Year of publication
1995
Pages
3950 - 3959
Database
ISI
SICI code
0021-9606(1995)103:10<3950:PDCIOP>2.0.ZU;2-Z
Abstract
Pressure dependence of optical absorption spectra were measured for (p hthalocyaninato)-nickel hexafluoroarsenate, NiPc(AsF6)(0.5) and (phtha locyaninato)-cobalt hexafluororarsenate, CoPc(AsF6)(0.5). We found a c harge transfer from the central metal ion to the macrocycle at 0.5 GPa in NiPc(AsF6)(0.5) and 1.1 GPa in CoPc(AsF6)(0.5). According to the e lectron-filling process in the pi-conduction band, a metal-insulator t ransition and an evolution of the energy gap was observed in NiPc(AsF6 )(0.5). On the other hand, nonmetallic CoPc(AsF6)(0.5) showed a contin uous change. (C) 1995 American Institute of Physics.