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Artykuły w czasopismach na temat „Ruthenium Isotopes”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 22 czerwca 2024

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1

Journal, Baghdad Science. "Study of the properties of Ru-isotopes using the proton-neutron interacting boson model (IBM-2)." Baghdad Science Journal 7, no. 1 (March 7, 2010): 76–89. http://dx.doi.org/10.21123/bsj.7.1.76-89.

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The proton-neutron interacting boson model (IBM-2) has been used to make a schematic study of the Ruthenium ( ) isotopes of mass region around with and . For each isotope of the values of the IBM-2 Hamiltonian parameters, which yield an acceptable results for excitation energies in comparison with those of experimental data, have been determined. Fixed values of the effective charges ( ) and of the proton and neutron g factors ( and ) have been chosen for all isotopes under study. The calculated electric quadrupole moments of state, transitions, the magnetic dipole moments transitions and mixi

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2

Arora, B. K., D. Mehta, Rakesh Rani, T. S. Cheema, and P. N. Trehan. "Coulomb excitation of ruthenium isotopes." Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 24-25 (April 1987): 460–63. http://dx.doi.org/10.1016/0168-583x(87)90683-5.

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3

Kim, Seonho, Kwang Hyun Sung, and Kyujin Kwak. "Isotopic Compositions of Ruthenium Predicted from the NuGrid Project." Astrophysical Journal 924, no. 2 (January 1, 2022): 88. http://dx.doi.org/10.3847/1538-4357/ac35e1.

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Abstract The isotopic compositions of ruthenium (Ru) are measured from presolar silicon carbide (SiC) grains. In a popular scenario, the presolar SiC grains formed in the outskirt of an asymptotic giant branch (AGB) star, left the star as a stellar wind, and joined the presolar molecular cloud from which the solar system formed. The Ru isotopes formed inside the star, moved to the stellar surface during the AGB phase, and were locked into the SiC grains. Following this scenario, we analyze the Nucleosynthesis Grid (NuGrid) data, which provide the abundances of the Ru isotopes in the stellar wi

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4

Arblaster, John W. "The Discoverers of the Ruthenium Isotopes." Platinum Metals Review 55, no. 4 (October 1, 2011): 251–62. http://dx.doi.org/10.1595/147106711x592448.

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5

Bork, J., H. Schatz, F. Käppeler, and T. Rauscher. "Proton capture cross sections of the ruthenium isotopes." Physical Review C 58, no. 1 (July 1, 1998): 524–35. http://dx.doi.org/10.1103/physrevc.58.524.

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6

Shibata, Keiichi. "Evaluation of neutron nuclear data on ruthenium isotopes." Journal of Nuclear Science and Technology 50, no. 12 (December 2013): 1177–87. http://dx.doi.org/10.1080/00223131.2013.838912.

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7

Marti, Kurt, Mario Fischer-Gödde, and Carina Proksche. "Meteoritic Molybdenum and Ruthenium Isotopic Abundances Document Nucleosynthetic p-process Components." Astrophysical Journal 956, no. 1 (September 29, 2023): 7. http://dx.doi.org/10.3847/1538-4357/acee81.

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Abstract Anomalies in isotopic abundances of Mo and Ru in solar system matter were found to document variable contributions of the nucleosynthetic s-process component. We report isotopic relations of ϵ 92Mo versus ϵ 100Ru in meteorites from chondritic parent bodies, iron meteorites, and achondrites that reveal deviations from expected s-process abundance variations. We show that two p-process isotopes 92Mo and 94Mo require the presence of distinct p-process components in meteoritic materials. The nucleosynthetic origin of abundant magic (N = 50) p-process nuclides, covering the mass range of Z

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8

Hanson, Susan K., Matthew E. Sanborn, Holly R. Trellue, and William S. Kinman. "Nuclear Sample Provenance and Age Determination Using Ruthenium Isotopes." Analytical Chemistry 94, no. 8 (February 14, 2022): 3645–51. http://dx.doi.org/10.1021/acs.analchem.1c05218.

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9

Forest, D. H., R. A. Powis, E. C. A. Cochrane, J. A. R. Griffith, and G. Tungate. "High resolution laser spectroscopy of naturally occurring ruthenium isotopes." Journal of Physics G: Nuclear and Particle Physics 41, no. 2 (January 20, 2014): 025106. http://dx.doi.org/10.1088/0954-3899/41/2/025106.

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10

Nystrom, A., and M. Thoennessen. "Discovery of yttrium, zirconium, niobium, technetium, and ruthenium isotopes." Atomic Data and Nuclear Data Tables 98, no. 2 (March 2012): 95–119. http://dx.doi.org/10.1016/j.adt.2011.12.002.

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11

Dean, S., M. Górska, F. Aksouh, H. de Witte, M. Facina, M. Huyse, O. Ivanov, et al. "The beta decay of neutron-deficient rhodium and ruthenium isotopes." European Physical Journal A 21, no. 2 (August 2004): 243–55. http://dx.doi.org/10.1140/epja/i2003-10204-2.

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12

Giannatiempo, A., A. Nannini, P. Sona, and D. Cutoiu. "Full-symmetry and mixed-symmetry states in even ruthenium isotopes." Physical Review C 52, no. 6 (December 1, 1995): 2969–83. http://dx.doi.org/10.1103/physrevc.52.2969.

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13

Bush, R. P. "Recovery of Platinum Group Metals from High Level Radioactive Waste." Platinum Metals Review 35, no. 4 (October 1, 1991): 202–8. http://dx.doi.org/10.1595/003214091x354202208.

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When nuclear fuel is irradiated in a power reactor a wide range of chemical elements is created by the fission of uranium and plutonium. These fission products include palladium, rhodium and ruthenium, and could in principle constitute a valuable source of these three metals. Their separation front the fuel during reprocessing operations is, however, a complex mutter. Various processes have been proposed and evaluated, mainly on a laboratory scale. To date none of them has been established as applicable on a commercial scale, but investigations with this aim are continuing in several countries

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14

Huang, Min, Yongzhong Liu, and Akimasa Masuda. "Accurate Measurement of Ruthenium Isotopes by Negative Thermal Ionization Mass Spectrometry." Analytical Chemistry 68, no. 5 (January 1996): 841–44. http://dx.doi.org/10.1021/ac950771z.

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15

Veronese, I., M. C. Cantone, A. Giussani, A. Arogunjo, P. Roth, V. Höllriegl, U. Oeh, U. Holzwarth, and K. Abbas. "A technique for the determination of ruthenium stable isotopes in urine samples." Journal of Radioanalytical and Nuclear Chemistry 271, no. 2 (February 2007): 497–501. http://dx.doi.org/10.1007/s10967-007-0236-8.

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16

Islam, M. A., T. J. Kennett та W. V. Prestwich. "Thermal neutron capture γ-ray spectrum of molybdenum and ruthenium". Canadian Journal of Physics 69, № 6 (1 червня 1991): 658–64. http://dx.doi.org/10.1139/p91-110.

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The thermal neutron capture γ rays from natural molybdenum and ruthenium have been studied using a pair spectrometer and the tangential facility at the McMaster University Nuclear Reactor. Precise transition, level, and neutron separation energies of different isotopes are inferred. The separation energies are: Sn(93Mo) = 8069.76 ± 0.09, Sn(95Mo) = 7369.10 ± 0.10, Sn(96Mo) = 9154.31 ± 0.05, Sn(97Mo) = 6821.15 ± 0.25, Sn(98Mo) = 8642.55 ± 0.07, Sn(99Mo) = 5925.42 ± 0.15, Sn(100Ru) = 9673.48 ± 0.05, and Sn(102Ru) = 9219.64 ± 0.05 keV. The M1 strength functions of 100Ru,102Ru, 96Mo, and 98Mo are

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17

Fitzsimmons, Jonathan, Justin Griswold, Dmitri Medvedev, Cathy Cutler, and Leonard Mausner. "Defining Processing Times for Accelerator Produced 225Ac and Other Isotopes from Proton Irradiated Thorium." Molecules 24, no. 6 (March 20, 2019): 1095. http://dx.doi.org/10.3390/molecules24061095.

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During the purification of radioisotopes, decay periods or time dependent purification steps may be required to achieve a certain level of radiopurity in the final product. Actinum-225 (Ac-225), Silver-111 (Ag-111), Astatine-211 (At-211), Ruthenium-105 (Ru-105), and Rhodium-105 (Rh-105) are produced in a high energy proton irradiated thorium target. Experimentally measured cross sections, along with MCNP6-generated cross sections, were used to determine the quantities of Ac-225, Ag-111, At-211, Ru-105, Rh-105, and other co-produced radioactive impurities produced in a proton irradiated thorium

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18

Panikkath, Priyada. "Thermal neutron capture cross sections and resonance integrals of ruthenium isotopes- 96Ru, 102Ru and 104Ru." Applied Radiation and Isotopes 153 (November 2019): 108819. http://dx.doi.org/10.1016/j.apradiso.2019.108819.

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19

Bharti, Arun, and S. K. Khosa. "Microscopic study of deformation systematics and low-lying yrast spectra in even-even ruthenium isotopes." Nuclear Physics A 572, no. 2 (May 1994): 317–28. http://dx.doi.org/10.1016/0375-9474(94)90177-5.

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20

Nair, A. G. C., A. Srivastava, A. Goswami, and B. K. Srivastava. "Cumulative yields of short-lived ruthenium isotopes in the thermal neutron induced fission of233U,235U and239Pu." Journal of Radioanalytical and Nuclear Chemistry Articles 91, no. 1 (August 1985): 73–79. http://dx.doi.org/10.1007/bf02036311.

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21

Koopmans, Anna E., Annelies de Klein, Nicole C. Naus, and Emine Kilic. "Diagnosis and Management of Uveal Melanoma." European Ophthalmic Review 07, no. 01 (2013): 56. http://dx.doi.org/10.17925/eor.2013.07.01.56.

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Uveal melanoma (UM) is the most common cause of primary eye cancer in the developed world. UM may arise in the iris, ciliary body or choroid. Choroidal melanomas are the most frequent and usually display a discoid, dome- or mushroom-shaped growth pattern. Diagnosis is based on a clinical examination with the slit lamp and indirect ophthalmoscope together with ultrasonography of the eye. Despite improvements of primary treatment and a shift towards more conservative eye treatments, survival has not improved during the past decades. Aims of conservative treatment of UM are to elucidate the tumou

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22

Hossain, I., Huda H. Kassim, Mushtaq A. Al-Jubbori, Fadhil I. Sharrad, and Said A. Mansour. "Ground States Structure of Ruthenium Isotopes with Neutron <i>N</i> = 60, 62." World Journal of Nuclear Science and Technology 10, no. 02 (2020): 76–84. http://dx.doi.org/10.4236/wjnst.2020.102008.

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23

Bykhovsky, A. A., I. E. Panova, and E. V. Samkovich. "Brachytherapy in organ-preserving treatment of choroidal melanoma: complications and the possibility of their prediction." Acta Biomedica Scientifica 6, no. 6-1 (December 28, 2021): 31–40. http://dx.doi.org/10.29413/abs.2021-6.6-1.4.

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This review analyzed the domestic and foreign literature on brachytherapy of choroidal melanoma using ruthenium ophthalmic applicators. The review highlights the historical aspects of radiation treatment, from the first experience of using ionizing radiation in the treatment of malignant neoplasms to modern methods of brachytherapy; presents the radiobiological foundations of radiation therapy; considers the issues of radiation pathomorphosis, reflecting the nature of pathological changes in the choroidal melanoma tissue during brachytherapy; shows the dependence of the effect of exposure ioni

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24

Kuprikov, V. I., and V. N. Tarasov. "Change in the Shape of Nuclei in the Chains of Krypton, Strontium, Zirconium, Molybdenum, and Ruthenium Isotopes in the Relativistic-Mean-Field Approximation." Physics of Atomic Nuclei 82, no. 3 (May 2019): 191–200. http://dx.doi.org/10.1134/s1063778819020108.

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25

Casey, Charles P., and Jeffrey B. Johnson. "Kinetic isotope effect evidence for the concerted transfer of hydride and proton from hydroxycyclopentadienyl ruthenium hydride in solvents of different polarities and hydrogen bonding ability." Canadian Journal of Chemistry 83, no. 9 (September 1, 2005): 1339–46. http://dx.doi.org/10.1139/v05-140.

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The tolyl analogue of Shvo's hydroxycyclopentadienyl ruthenium hydride (4) efficiently transfers a hydride and proton to benzaldehyde or acetophenone to produce an alcohol. This reduction can be performed in toluene, methylene chloride, and THF. Reduction of benzaldehyde in toluene and methylene chloride occurs approximately 300 times faster than in THF at 0 °C. Reduction of acetophenone occurs between 75 and 150 times slower than benzaldehyde at 0 °C in each respective solvent. Despite the differences in rate, mechanistic studies have provided evidence for a similar concerted transfer of acid

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26

Fukuzumi, Shunichi, Takeshi Kobayashi, and Tomoyoshi Suenobu. "Unusually Large Tunneling Effect on Highly Efficient Generation of Hydrogen and Hydrogen Isotopes in pH-Selective Decomposition of Formic Acid Catalyzed by a Heterodinuclear Iridium−Ruthenium Complex in Water." Journal of the American Chemical Society 132, no. 5 (February 10, 2010): 1496–97. http://dx.doi.org/10.1021/ja910349w.

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27

Hopp, Timo, Mario Fischer-Gödde, and Thorsten Kleine. "Ruthenium stable isotope measurements by double spike MC-ICPMS." Journal of Analytical Atomic Spectrometry 31, no. 7 (2016): 1515–26. http://dx.doi.org/10.1039/c6ja00041j.

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28

Schneider, T. W., M. T. Hren, M. Z. Ertem, and A. M. Angeles-Boza. "[RuII(tpy)(bpy)Cl]+-Catalyzed reduction of carbon dioxide. Mechanistic insights by carbon-13 kinetic isotope effects." Chemical Communications 54, no. 61 (2018): 8518–21. http://dx.doi.org/10.1039/c8cc03009j.

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Abdel-Shafi, Ayman A., Hanaa A. Hassanin та Shar S. Al-Shihry. "Partial charge transfer contribution to the solvent isotope effect and photosensitized generation of singlet oxygen, O2(1Δg), by substituted ruthenium(ii) bipyridyl complexes in aqueous media". Photochem. Photobiol. Sci. 13, № 9 (2014): 1330–37. http://dx.doi.org/10.1039/c4pp00117f.

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Solvent isotope effect on the lifetime of the excited<sup>3</sup>MLCT states of ruthenium complexes,τD0/τH0, was found to depend on partial charge transfer to solvent as found from their dependence on theE<sub>ox</sub>of these complexes.

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30

Mekhova, E. S., and P. Yu Dgebuadze. "Trophic interactions between gall-forming molluscs Stilifer spp. (Gastropoda, Eulimidae) and their hosts (Echinodermata)." Ruthenica, Russian Malacological Journal 30, no. 4 (October 1, 2020): 195–202. http://dx.doi.org/10.35885/ruthenica.2021.30(4).2.

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The trophic relationships between two species of symbiotic gall-forming molluscs from the genus Stilifer (family Eulimidae) and two of their hosts-asteroid species, Linckia laevigata and Culcita noveaguineae, were investigated using the stable isotope analysis of carbon and nitrogen. The aim of present study was to identify the most preferable host tissue in the symbionts’ diet. We analyzed δ15N and δ13C values in tube-feet, gonads and digestive glands of the hosts-starfishes and in muscles of the molluscs. Both symbiont species did not differ to each other both in δ15N and δ13C values. The av

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31

Dauphas, Nicolas, Andrew M. Davis, Bernard Marty, and Laurie Reisberg. "The cosmic molybdenum–ruthenium isotope correlation." Earth and Planetary Science Letters 226, no. 3-4 (October 2004): 465–75. http://dx.doi.org/10.1016/j.epsl.2004.07.026.

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Hopp, Timo, Mario Fischer-Gödde, and Thorsten Kleine. "Ruthenium isotope fractionation in protoplanetary cores." Geochimica et Cosmochimica Acta 223 (February 2018): 75–89. http://dx.doi.org/10.1016/j.gca.2017.11.033.

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33

Babushkina, N. A., A. N. Taldenkov, A. V. Inyushkin, Antoine Maignan, D. I. Khomskii, and K. I. Kugel. "Oxygen Isotope Effect in Cr- and Ru-Doped Pr_0.5Ca_0.5MnO₃ Manganites." Solid State Phenomena 152-153 (April 2009): 127–30. http://dx.doi.org/10.4028/www.scientific.net/ssp.152-153.127.

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The effect of 16О → 18О isotope substitution on the properties of Pr0.5Ca0.5MnO3 manganites doped by Cr and Ru is studied. In these compounds, chromium and ruthenium favor (i) the suppression of a charge-ordered state and (ii) the formation of a ferromagnetic metallic phase. The 16О → 18О isotope substitution leads to the growth of the charge-ordering transition temperature (TCO), and to the lowering of ferromagnetic transition temperature (TFM) accompanied by a decrease in the content of ferromagnetic phase. The difference in the behavior of the Cr- and Ru-substituted samples is analyzed.

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34

Fujii, Toshiyuki, Frederic Moynier, Philippe Telouk, and Francis Albarede. "Mass‐Independent Isotope Fractionation of Molybdenum and Ruthenium and the Origin of Isotopic Anomalies in Murchison." Astrophysical Journal 647, no. 2 (August 20, 2006): 1506–16. http://dx.doi.org/10.1086/505459.

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35

Lockley, W. J. S., and D. Hesk. "Rhodium- and ruthenium-catalysed hydrogen isotope exchange." Journal of Labelled Compounds and Radiopharmaceuticals 53, no. 11-12 (September 2010): 704–15. http://dx.doi.org/10.1002/jlcr.1815.

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36

Fischer-Gödde, Mario, Daniel Schwander, and Ulrich Ott. "Ruthenium Isotope Composition of Allende Refractory Metal Nuggets." Astronomical Journal 156, no. 4 (October 4, 2018): 176. http://dx.doi.org/10.3847/1538-3881/aadf33.

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37

Lummiss, Justin A. M., Adrian G. G. Botti, and Deryn E. Fogg. "Isotopic probes for ruthenium-catalyzed olefin metathesis." Catal. Sci. Technol. 4, no. 12 (2014): 4210–18. http://dx.doi.org/10.1039/c4cy01118j.

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<sup>13</sup>C-labelled Grubbs catalysts, RuCl<sub>2</sub>(L)(PCy<sub>3</sub>)(<sup>13</sup>CHR) (R = H, Ph), pinpoint the fate of the methylidene (benzylidene) moiety during metathesis and deactivation.

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Chen, J. H., D. A. Papanastassiou, and G. J. Wasserburg. "Ruthenium endemic isotope effects in chondrites and differentiated meteorites." Geochimica et Cosmochimica Acta 74, no. 13 (July 2010): 3851–62. http://dx.doi.org/10.1016/j.gca.2010.04.013.

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Lockley, W. J. S., and D. Hesk. "ChemInform Abstract: Rhodium- and Ruthenium-Catalyzed Hydrogen Isotope Exchange." ChemInform 42, no. 27 (June 9, 2011): no. http://dx.doi.org/10.1002/chin.201127216.

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Bermingham, K. R., and R. J. Walker. "The ruthenium isotopic composition of the oceanic mantle." Earth and Planetary Science Letters 474 (September 2017): 466–73. http://dx.doi.org/10.1016/j.epsl.2017.06.052.

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Kielan, D., A. Marcinkowski, and U. Garuska. "Isotopic effect in (n, p) reaction on ruthenium." Nuclear Physics A 559, no. 3 (June 1993): 333–46. http://dx.doi.org/10.1016/0375-9474(93)90157-s.

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Gunji, K., Z. Yoshida, T. Adachi, and T. Komori. "Determination of fission product ruthenium by isotope dilution mass spectrometry." Journal of Radioanalytical and Nuclear Chemistry Letters 118, no. 3 (July 1987): 225–33. http://dx.doi.org/10.1007/bf02169559.

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43

Kato, Nobuki, Yu Hamaguchi, Naoki Umezawa, and Tsunehiko Higuchi. "Efficient oxidation of ethers with pyridine N-oxide catalyzed by ruthenium porphyrins." Journal of Porphyrins and Phthalocyanines 19, no. 01-03 (January 2015): 411–16. http://dx.doi.org/10.1142/s1088424615500297.

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We found that oxidation of cyclic ethers with the Ru porphyrin-heteroaromatic N-oxide system gave lactones or/and ring-opened oxidized products with regioselectivity. A relatively high kinetic isotope effect was observed in the ether oxidation, suggesting that the rate-determining step is the first hydrogen abstraction.

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Marković, Katarina, Radmila Milačič, Stefan Marković, Jerneja Kladnik, Iztok Turel, and Janez Ščančar. "Binding Kinetics of Ruthenium Pyrithione Chemotherapeutic Candidates to Human Serum Proteins Studied by HPLC-ICP-MS." Molecules 25, no. 7 (March 26, 2020): 1512. http://dx.doi.org/10.3390/molecules25071512.

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The development of ruthenium-based complexes for cancer treatment requires a variety of pharmacological studies, one of them being a drug’s binding kinetics to serum proteins. In this work, speciation analysis was used to study kinetics of ruthenium-based drug candidates with human serum proteins. Two ruthenium (Ru) complexes, namely [(η6-p-cymene)Ru(1-hydroxypyridine-2(1H)-thionato)Cl] (1) and [(η6-p-cymene)Ru(1-hydroxypyridine-2(1H)-thionato)pta]PF6 (2) (where pta = 1,3,5-triaza-7-phosphaadamantane), were selected. Before a kinetics study, their stability in relevant media was confirmed by n

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45

Yinghuai, Zhu, Effendi Widjaja, Shirley Lo Pei Sia, Wang Zhan, Keith Carpenter, John A. Maguire, Narayan S. Hosmane, and M. Frederick Hawthorne. "Ruthenium(0) Nanoparticle-Catalyzed Isotope Exchange between10B and11B Nuclei in Decaborane(14)." Journal of the American Chemical Society 129, no. 20 (May 2007): 6507–12. http://dx.doi.org/10.1021/ja070210c.

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46

Bechtoldt, Alexander, and Lutz Ackermann. "Ruthenium(II)biscarboxylate‐Catalyzed Hydrogen‐Isotope Exchange by Alkene C−H Activation." ChemCatChem 11, no. 1 (October 29, 2018): 435–38. http://dx.doi.org/10.1002/cctc.201801601.

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47

Chandler, W. David, Zhao Wang, and Donald G. Lee. "Kinetics and mechanism of the oxidation of alcohols by tetrapropylammonium perruthenate." Canadian Journal of Chemistry 83, no. 9 (September 1, 2005): 1212–21. http://dx.doi.org/10.1139/v05-114.

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2-Propanol is oxidized by tetrapropylammonium perruthenate (TPAP) in a reaction that is second order in TPAP and first order in 2-propanol. One of the products, believed to be ruthenium dioxide, is an effective catalyst for the reaction, making it an autocatalytic process. The rate of oxidation is relatively insensitive to the presence of substituents. Primary kinetic deuterium isotope effects are observed when either the hydroxyl or the α hydrogen is replaced by deuterium. The only product obtained from the oxidation of cyclobutanol is cyclobutanone, indicating that the reaction is a two-elec

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Asahara, Masahiro, Haruhiko Kurimoto, Masato Nakamizu, Shingo Hattori, and Kazuteru Shinozaki. "H/D solvent isotope effects on the photoracemization reaction of enantiomeric the tris(2,2′-bipyridine)ruthenium(ii) complex and its analogues." Physical Chemistry Chemical Physics 22, no. 11 (2020): 6361–69. http://dx.doi.org/10.1039/c9cp06758b.

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Fischer-Gödde, Mario, Bo-Magnus Elfers, Carsten Münker, Kristoffer Szilas, Wolfgang D. Maier, Nils Messling, Tomoaki Morishita, Martin Van Kranendonk, and Hugh Smithies. "Ruthenium isotope vestige of Earth’s pre-late-veneer mantle preserved in Archaean rocks." Nature 579, no. 7798 (March 11, 2020): 240–44. http://dx.doi.org/10.1038/s41586-020-2069-3.

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