27 research outputs found
Structure and magnetic properties of an organic-inorganic hybrid compound : Zn/Cu (biquinoline)(VO2)(PO4H2)(PO4H).(H20)n
J. Chil. Chem. Soc., 2007, 51, 1173-117
Direct and Reverse Limiting Series of Transition Metal Phosphides with Ordered Defects and Metal/Non Metal Ratio Close to 2
International audienc
Influence of structural changes on photophysical properties of terpyridine derivates: Experimental studies and theoretical calculations
International audienceFour terpyridine ligands containing different aryl substituents 4'-(4-quinolinyl)-3,2':6′,3″-terpyridine (3-qtpy), 4'-(4-quinolinyl)-2,2':6′,2″-terpyridine (2-qtpy), 4'-(3-methyl-2-thienyl)-4,2':6′,4″-terpyridine (4-stpy) and 4'-(3-methyl-2-thienyl)-2,2':6′,2″-terpyridine (2-stpy) were synthesized in a one-pot procedure and characterized by elemental analysis, FT-IR and 1H- and 13C NMR spectroscopy. Additionally, the 2-stpy structure was confirmed by single crystal X-ray diffraction analysis. The influence of the N-position in the tpy and aryl substituents on the photophysical properties was systematically investigated by spectroscopic methods and simulated by density functional theory (DFT and TD-DFT) calculations. Thermal stability was observed until about 280 °C, making these kind of ligands interesting candidates for their use as complex ligands, which are obtained by solvothermal synthesis under temperatures of about 180 °C. The electrochemical behavior was also investigated. All molecules show irreversible anodic and cathodic voltammetric peaks in organic medium
Crystal structure of erbium palladium arsenic, ErPdAs
Z. Kristallogr. NCS, 2007, 222, 11-1
Na 2 [(VO) 2 (HPO 4 ) 2 C 2 O 4 ]·2H 2 O: Crystal Structure Determination from Combined Powder Diffraction and Solid-State NMR
International audienc