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Sulata Kumari Sahu Rajesh Ganesan T. Gnanasekaran 《The Journal of chemical thermodynamics》2010,42(1):1-7
Standard molar Gibbs free energy of formation of ternary oxides Pb5CrO8(s), Pb2CrO5(s), and PbCrO4(s) were determined by measuring equilibrium oxygen partial pressures over relevant phase fields using manometry and solid oxide electrolyte based emf methods and are given by: 相似文献
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《Radiation Physics and Chemistry》2006,75(11):1510-1513
The Au visible satellites, and were measured around the absorption edge using a high-resolution Johann-type spectrometer at BL15XU, SPring-8. The relative intensities of the and satellites to that of the line exhibit an abrupt jump at the threshold. The results suggest that the origin of the satellites is mainly the – Coster–Kronig transitions. 相似文献
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As can be seen from controlled potential electrolysis the anodic oxidation of dimethyl-hydrazine in acid solutions yields two electrons per DMH molecule, giving the following overall reaction:But the kinetics of the reaction is determined by a 1-electron step as the 110 mV Tafel slope shows. The reaction orders for DMH and H+ are zDMH=0.54 and zH+=?0.55 respectively. These results can be interpreted by the following reaction mechanism, where adsorption and desorption step are governed by the Temkin isotherm 相似文献
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Experimentally determined volumetric properties of the liquid binary mixture of {water (1) + glycerol (2)} were processed to calculate the changes of the following thermodynamic parameters with pressure: excess molar Gibbs free energy, , excess molar entropy, , excess molar enthalpy, , as well as the enthalpy of mixing of water and glycerol, , at 100 MPa. The mixing enthalpies of water and glycerol, , became more exothermic with pressure increasing at all temperatures studied. 相似文献
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Iurii L. Malaestean Manfred Speldrich Arkady Ellern Svetlana G. Baca Paul Kögerler 《Polyhedron》2010,29(8):1990-1997
Four hexanuclear coordination clusters containing cores of edge-sharing coordination octahedra exemplify how mixed-spin derivatives of a homonuclear parent structure, [(N–O)4], can be realized by a ligand ‘shrink-wrapping’ approach, resulting in [(N–O)4]- and [(N-O)4]-type clusters (L = isobutyrate, N–O = methyldiethanolamine, n-butyldiethanolamine, or triethanolamine). The resulting core structures are either virtually isostructural to the parent structure or differ in the placement of the peripheral metal ions, depending on the mix of structure-directing carboxylate and alkoxyamine ligands with large, flexible alkyl chains. Whereas the and {} complexes show dominant antiferromagnetic exchange, ferrimagnetic coupling features are exhibited by two {} clusters. 相似文献
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《Polyhedron》2007,26(9-11):1997-2007