Zobrazeno 1 - 10
of 39
pro vyhledávání: '"John M. Stadlbauer"'
Publikováno v:
Radiation Physics and Chemistry. 50:259-262
Muonium atoms react with chloroacetic acid and chloroacetate ions in dilute aqueous solution with rate constants of 2.3 × 106 and 9.1 × 105 dm3 mol−1 s−1 respectively. These are compared with the reactions of 1H atoms (and eaq−) and discussed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bcdd9748fc0c3bbf005e338ef033a7fc
https://doi.org/10.1016/s0969-806x(97)00033-9
https://doi.org/10.1016/s0969-806x(97)00033-9
Publikováno v:
The Journal of Physical Chemistry A. 101:4741-4744
Two reactions of muonium atoms close to the diffusion-controlled limit were analyzed as a function of solute size and solvent viscosity. With Cr(NCS)63- as solute in water, the reaction is an electron spin-conversion process, and the observed rate is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e2458579bf8d49f591c18068633423f
https://doi.org/10.1021/jp970508x
https://doi.org/10.1021/jp970508x
Autor:
John M. Stadlbauer, David C. Walker, Krishnan Venkateswaran, Gerald B. Porter, Hugh A. Gillis
Publikováno v:
Canadian Journal of Chemistry. 74:1945-1951
Muonium atoms add to the O atom of the carbonyl group of acetone to give the muonated free radical (CH3)2Ċ-O-Mu when the reaction takes place in water or hydrocarbons, but not when the acetone is localized in micelles. Micelles have no effect on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52e5fa92dee772b86eccbd25b8dac5ca
https://doi.org/10.1139/v96-221
https://doi.org/10.1139/v96-221
Autor:
John M. Stadlbauer, Delano P. Chong, Krishnan Venkateswaran, Mark E. Laing, Jan Klugkist, David C. Walker, Gerald B. Porter
Publikováno v:
Hyperfine Interactions. 87:947-952
Muon resonance studies show that muonium atoms (Mu) in ethanol add selectively to certain C-sites of aromatic compounds containing -Cl and -OH substituents. The sites chosen seem to be those carrying the lowest electron density. This helps to charact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b93aa79d8acfa9f99833bc2cd55b29c
https://doi.org/10.1007/bf02068488
https://doi.org/10.1007/bf02068488
Publikováno v:
Hyperfine Interactions. 87:941-946
A competition was established for the reaction of muonium atoms (Mu) between nitrate ions in water and benzene or styrene solubilized in micelles. The nitrate was 3.3-times more efficient at inhibiting muonated free radical formation with benzene tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::14f76c2201cbc57cb275d98edebf0d7d
https://doi.org/10.1007/bf02068487
https://doi.org/10.1007/bf02068487
Publikováno v:
Hyperfine Interactions. 87:877-882
The muon level-crossing-resonance technique has been used to resolve major discrepancies that exist in muon-spin-resonance studies (both free-radical formation and muonium decay rates) in the competition between benzene and styrene. The results, obta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6fe67e3a47c4f8a72ef54d7c6c8d1686
https://doi.org/10.1007/bf02068478
https://doi.org/10.1007/bf02068478
Autor:
Krishnan Venkateswaran, Mary Vijayarani Barnabas, John M. Stadlbauer, Zhennan Wu, David C. Walker
Publikováno v:
ChemInform. 23
Using the level crossing resonance technique, it has been possible to identify the measure the relative yields of free radicals formed by addition of muonium across the C[double bond]C group at carbon atoms 5 and 6 in uracil, thymine, and 6-methylura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d49c5401e26429eab7ad9fc3257b1dbc
https://doi.org/10.1002/chin.199210094
https://doi.org/10.1002/chin.199210094
Autor:
Mary Vijayarani Barnabas, John M. Stadlbauer, Krishnan Venkateswaran, Zhennan Wu, David C. Walker, Gerald B. Porter
Publikováno v:
Journal of the American Chemical Society. 113:9096-9099
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d11a0813de479879109d1d83886280e0
https://doi.org/10.1021/ja00024a010
https://doi.org/10.1021/ja00024a010
Autor:
Krishnan Venkateswaran, David C. Walker, Mary Vijayarani Barnabas, John M. Stadlbauer, Zhennan Wu
Publikováno v:
The Journal of Physical Chemistry. 95:10204-10207
Using the level crossing resonance technique, it has been possible to identify the measure the relative yields of free radicals formed by addition of muonium across the C[double bond]C group at carbon atoms 5 and 6 in uracil, thymine, and 6-methylura
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60558146bd19e722f0d775406031e261
https://doi.org/10.1021/j100177a105
https://doi.org/10.1021/j100177a105
Publikováno v:
Hyperfine Interactions. 65:959-963
A pseudo first-order term has been added to the kinetic analysis of micelle-mediated muonium reactions. It is discussed with respect to enhancements of several orders of magnitude for reactions such as that of 2-propanol. It covers the possibility of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fbdd8a29d147569db46d47375b590a5e
https://doi.org/10.1007/bf02397749
https://doi.org/10.1007/bf02397749