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71.
72.
M.S. Sethi P.S. Raghavan B.S. Garg R.P. Singh Mahendra K. Gadia 《Microchemical Journal》1980,25(1):129-135
Polarography of 9,10-phenanthraquinone monoxime has been carried out in buffers (pH 3.50 to 13.40) of constant ionic strength 0.5 M in 40% alcoholic solutions at 35 ± 0.5 °C. The oxime group underwent diffusion-controlled reduction (4e) over the whole pH range studied. The number of electrons involved in the reduction was found coulometrically as well as by incorporating the value of the diffusion coefficient, obtained by using a McBain-Dawson cell, into the Ilkovic equation. Controlled potential electrolyses and uv spectroscopic methods were used to identify the products. Koutecky's method was used to compute the kinetic parameters (αnaand ?log kf,ho) for the reduction of the oxime group and reduction mechanisms are proposed. 相似文献
73.
74.
Rajinder K. Tuli Kailash Chandra Rajendra K. Sharma Narendra Kumar Bhagwan S. Garg 《Transition Metal Chemistry》1980,5(1):49-51
Summary Pseudohalide complexes of the (-cpL)TiXZ type (where cp = cyclopentadienyl, L = -McCs5-H4 and X = N3, NCS, NCO or NCSe) have been prepared in aqueous and nonaqueous media and characterized by elemental analyses, i.r. and n.m.r. spectroscopy. I.r. spectroscopy shows that NCS, NCO and NCSe are bonded to the titanium atom through nitrogen in these complexes which are thus true isothiocyanato, isocyanato and isoselenocyanato derivatives respectively. 相似文献
75.
76.
The stability of a curved rail under a constant moving load has been investigated using a linear theory; critical speeds of the moving load, and the dynamic rail deflections and rotation were calculated. The effect of the foundation was included through distributed linear springs. It was assumed that the moving load remains in constant contact with the rail and travels along a fixed path on the rail head. 相似文献
77.
K. M. Garg 《Acta Mathematica Hungarica》1963,14(1-2):187-195
78.
Ratios of coincidence counting rates of annihilation gammas at 0 and 10m rad were measured for 16 atomic percentages of indium
in liquid mercury. Theory of trapping of positrons at solute atoms and solute-vacancy complexes is applied. Complete angular
correlation measurements for 14.3, 25, 35, and 50 atomic percentages of indium were also made and showed possible effects
of solute-vacancy complexes on the smearing of the angular correlation distributions. 相似文献
79.
80.
The atomistic simulation results presented in Part I for SrTiO3 (310) symmetrical tilt grain boundary (STGB, the so-called = 5 GB with 36.8° symmetrical misorientation about [001]) are analyzed in the context of available experimental studies. In particular, atomic imaging studies of SrTiO3 GBs via high resolution TEM and incoherent Z-contrast STEM imaging; and determination of oxygen positions by combining electron energy loss spectroscopy (EELS) and bond-valence-sum rules, are compared with simulation results. The atomistic simulation data on the GB energies are compared with relative experimental estimates obtained via a novel approach of faceting of focused ion beam (FIB) induced microvoids.While there are considerable differences in details of simulation and experimental results, some basic trends seem to emerge about the core structural framework of GBs in SrTiO3. The paper highlights the limitations of both, experimental and simulation techniques, and argues in favor of synergistic use of diverse experimental and simulation approach to determine the atomic structure and properties of GBs. 相似文献