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Journal of Chemistry
Volume 2013 (2013), Article ID 486318, 6 pages
Research Article

Crystal Structure of Ruthenium Phthalocyanine with Diaxial Monoatomic Ligand: Bis(Triphenylphosphine)Iminium Dichloro(Phthalocyaninato(2-))Ruthenium(III)

1Department of Chemistry, College of Science, De La Salle University, 2401 Taft Avenue, Manila 1004, Philippines
2Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan

Received 27 June 2012; Accepted 6 September 2012

Academic Editor: Mitsushiro Nomura

Copyright © 2013 Derrick Ethelbhert Yu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Axially-ligated iron phthalocyanines have been found to be good molecular conductors with giant negative magnetoresistance (GNMR) which originates from a strong intramolecular -d interaction between the metal and phthalocyanine. Ab initio theoretical calculations showed that substitution of ruthenium into the phthalocyanine complex would result in a significant increase in the -d interaction of the system, potentially intensifying GNMR. This paper presents the crystal preparation and X-ray structural characterization of bis(triphenylphosphine)iminium dichloro(phthalocyaninato(2-))ruthenium(III), PNP [ (Pc2−)Cl2]. It is observed that [ (Pc2−)Cl2] system has a symmetric planar RuPc unit with perpendicular axial ligands which results in a unidirectional and uniform solid-state arrangement, suitable for -d interaction-based molecular conductors with potentially exceptional GNMR.