Biomedical subjects
OE Piro
Publications and source records attributed to OE Piro.
X-ray diffraction study of copper(I) thiourea complexes formed in sulfate-containing acid solutions
The formation of three different copper(I) thiourea complexes in sulfate-containing acid solutions was observed. The ratio between Cu(I) and thiourea (tu) in these complexes depends on the amount of thiourea and copper sulfate in the solution. The crystal and molecular structure of a new complex, [Cu(2)(tu)(6)](SO(4)).H(2)O, was determined, and the formation and structures of [Cu(2)(tu)(5)](SO(4)).3H(2)O and [Cu(4)(tu)(7)](SO(4))(2).H(2)O were confirmed. The compound [Cu(2)(tu)(6)](SO(4)).H(2)O crystallizes in the P1; space group, with a = 11.079 (2), b = 11.262 (1), c = 12.195 (2) A, alpha = 64.84 (1), beta = 76.12 (1), gamma = 66.06 (1) degrees, and Z = 2. The Cu-thiourea complex is arranged as a Cu(I) tetranuclear ion, [Cu(4)(tu)(12)](4+), sited on a crystallographic inversion center. All copper ions are in a tetrahedral coordination with thiourea ligands and located at alternate sites on an eight-membered, crown-like ring.
Infrared reflectivity and vibrational structure of superconducting Bi2Sr2CaCu2O8+x.
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Kramers-Kronig dispersive analysis and optical properties in the infrared, and revised vibrational behavior of orthorhombic Na2
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Attenuated total-reflectance spectra of strongly absorbing anisotropic single crystals: Trigonal alpha -quartz.
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Crystallographic phases and transport properties in the superconducting Tm-Ba-Cu-O compound system.
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Infrared optical properties and vibrational behavior of anisotropic crystals: Orthorhombic Ba
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Optical properties, reflectance, and transmittance of anisotropic absorbing crystal plates.
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Transition dipole-dipole coupling between the NO stretching vibrations of nitroprusside ions in Sr
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Transition dipole-dipole coupling between the antisymmetric stretching mode of azido ligands in K3
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