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Full-Text Articles in Physical Sciences and Mathematics
New Phases Of Ybacugeo Superconductors Identified From X-Ray Diffraction And Infra-Red Absorption Measurements, Ahmed Abo-Arais, Mohamad Ahmad Taher Dawoud
New Phases Of Ybacugeo Superconductors Identified From X-Ray Diffraction And Infra-Red Absorption Measurements, Ahmed Abo-Arais, Mohamad Ahmad Taher Dawoud
Turkish Journal of Physics
X-ray powder diffraction patterns and infra-red absorption spectra have been evaluated and analysed for the Y_1 Ba_2 Cu_3 O_{7-\delta} - Ge_x compound samples prepared by the solid state reaction with x values ranging from 0.0 to 1.13. All samples show bulk superconductivity above liquid nitrogen temperature using the levitation test (Meissner effect). Samples with Ge content up to x = 0.2 have offset T_c between 83K and 92K while the sample with x = 1.13 shows semiconducting behavior above 100K. As a result of the solid state interaction between YBCO and Ge, new phases are observed and determined, mainly three …
Synthesis And Antimicrobial Evaluation Of Some New 2-(2-(P-Chlorophenyl) Benzimidazol-1-Yl Methyl)-5-Substituted Amino-[1,3,4]-Thiadiazoles, Gülgün Ayhan Kilcigi̇l, Canan Kuş, Nurten Altanlar, Süheyla Özbey
Synthesis And Antimicrobial Evaluation Of Some New 2-(2-(P-Chlorophenyl) Benzimidazol-1-Yl Methyl)-5-Substituted Amino-[1,3,4]-Thiadiazoles, Gülgün Ayhan Kilcigi̇l, Canan Kuş, Nurten Altanlar, Süheyla Özbey
Turkish Journal of Chemistry
Some 2-(2-(p-chlorophenyl)benzimidazol-1-ylmethyl)-5-substituted amino-[1,3,4]-thiadiazoles were synthesized and their in vitro antimicrobial activities were tested against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Candida albicans and Candida krusei. Compounds 1b and 12b which possess remarkable activity against C. albicans and marginal activity against C. krusei were found to be the most active compounds in this series. Single crystal X-ray diffraction analysis was performed for compound 8b.