RESUMO
In this article, we present orientation study of metallophthalocyanine (MPcs) (CoPc, ZnPc, CuPc, and MgPc) thin films deposited on silicon substrate. The MPc's thin layers were obtained by the quasi-molecular beam evaporation. The micro-Raman scattering spectra of MPc's thin films were investigated in the spectral range 550-1650 cm-1 using 488 nm excitation wavelength. Raman scattering studies were performed at room temperature before and after annealing process. Annealing process of thin layers was carried out at 200 °C for 6 h. From polarized Raman spectra using surface Raman mapping, the information on polymorphic phase of MPc's layers has been obtained. The chosen Raman modes A1g and B1g are connected with different polymorphic phases of MPc (α and ß form) thin layers. Moreover, the obtained results showed the influence of the annealing process on the ordering of the molecular structure. Following the annealing process, it was observed arrangement of the thin layers structure being revealed in Raman spectra. The obtained results indicate that the annealing process has a significant influence on the structure of thin layers being under study.
RESUMO
An unusual pedigree of female-limited seizures with or without mental retardation is updated. The disorder was first detected in a large cohort of women whose fathers were brothers, and affected women had previously transmitted the disorder. Four brothers of affected females have now had five unaffected daughters while four affected women have had four affected and one unaffected daughters and two unaffected sons. This unusual transmission pattern is discussed in terms of germ-line imprinting, neuronal sexual differentiation, and the generally higher risk of seizures seen when the mother, rather than the father, is affected.