Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Kazumi Toriyama"'
Publikováno v:
Applied Magnetic Resonance. 36:89-95
Room temperature fluorine electron nuclear double resonance (ENDOR) has been successfully observed for several superstable fluorocarbon radicals ·C(C2F4R)(i-C3F7)2 in solution. Three radicals were employed in which CF3, F, and O-c-C6F10SO3C2F5 were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e624f8292f2f859f0c71943fad5202f4
https://doi.org/10.1007/s00723-009-0005-7
https://doi.org/10.1007/s00723-009-0005-7
Publikováno v:
The Journal of Physical Chemistry C. 113:11086-11094
Real-time ESR observations have been made on the aqueous solutions of di-tert-butyl nitroxide and 2,2,6,6-tetramethylpiperidine-1-oxyl-4-ol flowing in a quartz column of 0.81 mm ⌀ packed with well-dried MCM-41. In both systems, the ESR spectrum is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61329269a8e969ea7fb7549943fa2e94
https://doi.org/10.1021/jp901908z
https://doi.org/10.1021/jp901908z
Publikováno v:
Applied Magnetic Resonance. 35:363-378
A few alcoholic solutions of di-tert-butyl nitroxide (DTBN), a spin probe, at a high concentration were condensed on several silica materials, such as MCM-41, two types of SBA-15, and fumed silica, at various amounts in vacuum. At a very low solution
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::554f72086c03ee6a37dd05c12e940183
https://doi.org/10.1007/s00723-009-0168-2
https://doi.org/10.1007/s00723-009-0168-2
Publikováno v:
The Journal of Physical Chemistry C. 112:786-793
The solution of di-tert-butylnitroxide (DTBN, a spin probe) in a low molecular weight alcohol was condensed in the MCM-41 nanochannel with changing its volume successively. When the solution volume is much smaller than that of nanochannel, the broad
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aaf61d30f41443e084213be70e5c8298
https://doi.org/10.1021/jp077154m
https://doi.org/10.1021/jp077154m
Autor:
Masaharu Okazaki, Kazumi Toriyama
Publikováno v:
The Journal of Physical Chemistry C. 111:9122-9129
ESR spectra were observed for the alcoholic solutions of spin probes at a very high concentration, 30 mM, both in the clear solution and encapsulated in the nanochannel of MCM-41. At a high temperature, the clear solution shows a very broad ESR spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::295ec95081af6d5ae253474a1d4372de
https://doi.org/10.1021/jp070605i
https://doi.org/10.1021/jp070605i
Autor:
Kazumi Toriyama, Masaharu Okazaki
Publikováno v:
The Journal of Physical Chemistry B. 109:20068-20071
The effect of MCM-41 on the ESR spectrum of an aqueous spin probe solution was observed. The sharp ESR spectrum turns into a rather broad characteristic one leaving a sharper signal as the minor component, immediately after the addition of MCM-41 pow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c31ce653d5b814bd55007bd4332c2583
https://doi.org/10.1021/jp055001y
https://doi.org/10.1021/jp055001y
Autor:
Masaharu Okazaki, Kazumi Toriyama
Publikováno v:
The Journal of Physical Chemistry B. 109:13180-13185
A spin-probe ESR study has been made on the dynamics of 2-propanol and water molecules in the nanochannel of MCM-41 at various temperatures. In the former system, 2-propanol is separated into two phases: one with molecules immobilized in the ESR time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4112d9197484c70dc22956016d02c3ce
https://doi.org/10.1021/jp051258k
https://doi.org/10.1021/jp051258k
Publikováno v:
Chemical Physics Letters. 401:363-367
High-resolution solid-state 13C NMR spectra of long-chained n-alkanes included in the nano-channel of MCM-41 have been observed. Each spectrum has two sets of peaks: one from very flexible molecules and the other from molecules with no significant fl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ad7fbf3f215b13b9335b034ae942e1e
https://doi.org/10.1016/j.cplett.2004.11.077
https://doi.org/10.1016/j.cplett.2004.11.077
Autor:
Masaharu Okazaki, Kazumi Toriyama
Publikováno v:
The Journal of Physical Chemistry B. 108:12917-12920
The physical states of long-chain n-alkane molecules in the nanochannel of MCM-41, a mesoporous silica, were studied by observing the ESR spectra of alkyl radicals formed by radiolysis. The ESR spectra for the systems with n-decane, n-undecane, n-dod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::895796dbafd4a26a391c788f23d08776
https://doi.org/10.1021/jp048662o
https://doi.org/10.1021/jp048662o
Publikováno v:
Bulletin of the Chemical Society of Japan. 77:87-93
The ESR spectrum of a spin-probe in 2-propanol, which was condensed into the nano-channel of MCM-41 from its vapor, showed three well-separated nitrogen hyperfine lines. This observation indicates ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f45bf42d71b116d2bd58a10c76c9ce27
https://doi.org/10.1246/bcsj.77.87
https://doi.org/10.1246/bcsj.77.87