Results 201 to 210 of about 47,002 (250)
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Coordination Chemistry Reviews, 2002
Abstract Krypton is the only noble gas other than xenon to give rise to isolable compounds in macroscopic amounts, although the chemistry of krypton is presently limited to the +2 oxidation state. The strong oxidant-fluorinator properties and thermal instabilities of krypton(II) compounds have posed considerable challenges to determining the extent ...
Gary J Schrobilgen
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Abstract Krypton is the only noble gas other than xenon to give rise to isolable compounds in macroscopic amounts, although the chemistry of krypton is presently limited to the +2 oxidation state. The strong oxidant-fluorinator properties and thermal instabilities of krypton(II) compounds have posed considerable challenges to determining the extent ...
Gary J Schrobilgen
exaly +3 more sources
Krypton-krypton molecular interaction
Physica, 1961Abstract Mainly on the basis of the various crystal properties the potential energy of interaction of krypton on a six-parameter model has been obtained. The potential energy curve thus obtained is more logical than those on the usual two or three parameter models (e.g. exp-6, L-J (6–12) etc.). It has been found that the force constants on the L-J
A. K. Barua, P.K. Chakraborti
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The Journal of Chemical Physics, 1976
Light absorption techniques are used to study the temporal dependence of the number densities of the 5s′00 and 5s12 krypton metastable atoms during the decay period (afterglow) of a pulsed discharge in krypton and krypton–nitrogen mixtures. The sensitivity of the temporal properties of the 5s′00 state of krypton to discharge pulse conditions was ...
C. J. Tracy, H. J. Oskam
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Light absorption techniques are used to study the temporal dependence of the number densities of the 5s′00 and 5s12 krypton metastable atoms during the decay period (afterglow) of a pulsed discharge in krypton and krypton–nitrogen mixtures. The sensitivity of the temporal properties of the 5s′00 state of krypton to discharge pulse conditions was ...
C. J. Tracy, H. J. Oskam
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The Journal of Chemical Physics, 1952
The compressibility of krypton containing 0.90 mole percent xenon has been measured from 0° to 300°C and over the density range 1 to 10 mole per liter. The constants of the Beattie-Bridgeman equation of state for the sample and for pure krypton were determined. The constants for pure krypton are R=0.08206, A0=2.4230, a=0.02865, B0=0.05261, b=0, c=14.89×
James S. Brierley +2 more
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The compressibility of krypton containing 0.90 mole percent xenon has been measured from 0° to 300°C and over the density range 1 to 10 mole per liter. The constants of the Beattie-Bridgeman equation of state for the sample and for pure krypton were determined. The constants for pure krypton are R=0.08206, A0=2.4230, a=0.02865, B0=0.05261, b=0, c=14.89×
James S. Brierley +2 more
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Journal of Applied Spectroscopy, 1965
The populations of the 1s, 2p, and 3p levels of krypton have been determined. The electrical parameters of the glow discharge have been measured by the two-probe method. The oscillator strengths of 13 spectral lines of krypton were determined in the visible and near-infrared portions of the spectrum.
E. P. Ostapchenko, V. P. Malakhov
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The populations of the 1s, 2p, and 3p levels of krypton have been determined. The electrical parameters of the glow discharge have been measured by the two-probe method. The oscillator strengths of 13 spectral lines of krypton were determined in the visible and near-infrared portions of the spectrum.
E. P. Ostapchenko, V. P. Malakhov
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Analysis of Krypton-85 and Krypton-81 in a Few Liters of Air
Analytical Chemistry, 2014Long-lived radioactive krypton isotopes, (81)Kr (t1/2 = 229,000 year) and (85)Kr (t1/2 = 10.76 year), are ideal tracers. (81)Kr is cosmogenic and can be used for dating groundwater beyond the (14)C age. (85)Kr is a fission product and can be applied in atmospheric studies, nuclear safety inspections, and dating young groundwater.
Gu-Liang Liu +5 more
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Acta Crystallographica Section D Biological Crystallography, 2001
Experiments demonstrating the feasibility of Kr-edge MAD on frozen crystals as a routine method for structure determination are reported. Approximately 50% of protein crystals can be successfully derivatized by pressurization with the noble gases xenon or krypton. While Xe has produced many useful derivatives for MIR phasing over the last several years,
Nicole Kresge +3 more
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Experiments demonstrating the feasibility of Kr-edge MAD on frozen crystals as a routine method for structure determination are reported. Approximately 50% of protein crystals can be successfully derivatized by pressurization with the noble gases xenon or krypton. While Xe has produced many useful derivatives for MIR phasing over the last several years,
Nicole Kresge +3 more
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Viscosity and Thermal Conductivity of Binary Gas Mixtures: Krypton-Argon, Krypton-Neon, and Krypton-Helium [PDF]
Proceedings of the Physical Society, 1961 The coefficients of viscosity and thermal conductivity of binary mixtures of krypton with argon, neon and helium have been determined over the full range of composition of each mixture at a pressure of 70 cm of mercury and at a temperature in the range 18.0 to 18.3°C.
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Surface diffusion of metastable krypton atoms on krypton-doped solid argon
Journal of Luminescence, 1998Abstract Besides desorption and surface trapping of selectively excited Kr atoms at the surface of Kr-doped Ar crystals, a new relaxation mechanism has been observed. It includes surface diffusion of long-living atomic-type surface centers and guest-molecule formation at the surface.
Runne, M., Zimmerer, G.
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Enhancement in Mercury–Krypton and Xenon–Krypton Gaseous Discharges
Applied Optics, 1963Spectroscopic examination of electrodeless gaseous discharges in krypton containing small amounts of xenon or mercury shows a directed transfer of energy by collisions of the second kind from the krypton 1s5 metastable atoms to the 2s levels in Xe and the 91P1 state in Hg.
G. Grosof, R. Targ
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