title: Site-specific intermolecular interaction in α-phase crystalline films of phthalocyanines studied by soft x-ray emission spectroscopy.
abstract: The local electronic structures of crystalline and amorphous films of zinc phthalocyanine (ZnPc) and metal-free phthalocyanine (H(2)Pc) have been studied by soft x-ray emission spectroscopy (XES). We found a clear crystalline structure dependence of the elastic-peak shape in the resonant XES spectra. The elastic peaks of both ZnPc and H(2)Pc are found to show an asymmetric shape due to resonant inelastic x-ray scattering (RIXS) at the nitrogen sites for the α-crystalline films, but not for the amorphous films. The observed RIXS feature is ascribed to the charge transfer excitation due to the Raman-active intermolecular interaction, which dominates the excited-electron dynamics in α-crystalline phthalocyanine films.
authors.affiliation: Department of Photo-Molecular Science, Institute for Molecular Science, Okazaki 444-8585 Japan. yamane@ims.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Yamane
authors.forename: T
authors.initials: T
authors.lastname: Hatsui
authors.forename: K
authors.initials: K
authors.lastname: Iketaki
authors.forename: T
authors.initials: T
authors.lastname: Kaji
authors.forename: M
authors.initials: M
authors.lastname: Hiramoto
authors.forename: N
authors.initials: N
authors.lastname: Kosugi
mesh_terms: D003460:Crystallization; D007211:Indoles / Q000737:chemistry*; D054833:Isoindoles; D008567:Membranes, Artificial; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission; D017967:Zinc Compounds
chemical_list: D007211:Indoles; D054833:Isoindoles; D008567:Membranes, Artificial; D009942:Organometallic Compounds; D017967:Zinc Compounds; C052159:Zn(II)-phthalocyanine; C013647:phthalocyanine