Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Jerzy W. Wiench"'
Autor:
Jerzy W. Wiench, Saiko Akahane, Kenji Hara, Nobuhiro Ishito, Marek Pruski, Breina R. Burgin, Victor S.-Y. Lin, Atsushi Fukuoka
Publikováno v:
The Journal of Physical Chemistry C. 116:7083-7090
Surface silanol groups in mesoporous silica MCM-41 particles were successfully silylated with trimethylsilyl trifluoromethanesulfonate (TMSOTf). Characterization of modified mesoporous silica materials was conducted using X-ray diffraction, infrared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::55d4570702e734f91ba2c21a253fe178
https://doi.org/10.1021/jp300580f
https://doi.org/10.1021/jp300580f
Autor:
Vitalij K. Pecharsky, Niraj K. Singh, Takeshi Kobayashi, Marek Pruski, Jerzy W. Wiench, Oleksandr Dolotko
Publikováno v:
Journal of Alloys and Compounds. 513:324-327
Mechanochemical transformations occurring during ball milling of sodium amide (NaNH 2 ) with magnesium hydride (MgH 2 ) taken in 2:3 and 2:1 molar ratios have been investigated using X-ray powder diffraction (XRD) and solid-state nuclear magnetic res
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::88c49e202a507d5ee3c95b538aefe339
https://doi.org/10.1016/j.jallcom.2011.10.041
https://doi.org/10.1016/j.jallcom.2011.10.041
Publikováno v:
International Journal of Hydrogen Energy. 36:10626-10634
The thermal transformations in the lithium alanate-amide system consisting of lithium aluminum hydride (LiAlH4) and lithium amide (LiNH2), mixed in a 1:1 M ratio, were investigated using the pressure-composition-temperature analysis, solid-state nucl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::460a85cd90c4fcc03b068dc4d9de6e60
https://doi.org/10.1016/j.ijhydene.2011.05.163
https://doi.org/10.1016/j.ijhydene.2011.05.163
Autor:
Arkady Ellern, Kuntal Manna, James Francis Dunne, Jerzy W. Wiench, Marek Pruski, Aaron D. Sadow
Publikováno v:
Dalton Trans.. 39:641-653
A compound that contains a Lewis acidic boron center and coordinating oxazoline groups, bis(4,4-dimethyl-2-oxazolinyl)phenylborane (PhB(Ox(Me2))2; 1), has been prepared and spectroscopically characterized. Solvent dependent 15N and 11B NMR spectrosco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38afab8cb65d22d3326c985e265dbd61
https://doi.org/10.1039/b911851a
https://doi.org/10.1039/b911851a
Publikováno v:
New J. Chem.. 34:25-28
The solvent-free reaction between o-vanillin and p-toluidine was investigated using NMR, DSC and XRD analyses. At room temperature, o-vanillin and p-toluidine react in a liquid eutectic formed upon grinding, while below 10 °C the same materials appe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c77873df9e29def95e6b937348ee5a19
https://doi.org/10.1039/b9nj00588a
https://doi.org/10.1039/b9nj00588a
Publikováno v:
Topics in Catalysis. 53:187-191
A series of urea- and thiourea-functionalized mesoporous silica nanoparticles (MSN) was synthesized. These materials exhibited a superior catalytic reactivity for Diels–Alder reaction than their homogeneous analogues. The reactivity enhancement was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fceffb074b0e26738c84cf58a17ee2f
https://doi.org/10.1007/s11244-009-9423-x
https://doi.org/10.1007/s11244-009-9423-x
Publikováno v:
Journal of Magnetic Resonance. 193:233-242
A remarkable enhancement of sensitivity can be often achieved in 29Si solid-state NMR by applying the well-known Carr-Purcell-Meiboom-Gill (CPMG) train of rotor-synchronized pi pulses during the detection of silicon magnetization. Here, several one-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0abf09faf076f172f6971db7ee56b1a
https://doi.org/10.1016/j.jmr.2008.05.007
https://doi.org/10.1016/j.jmr.2008.05.007
Autor:
Marek Pruski, Haiqiao Zhang, Vitalij K. Pecharsky, L. Scott Chumbley, Jerzy W. Wiench, Ozan Ugurlu, Oleksandr Dolotko
Publikováno v:
Acta Materialia. 55:3121-3130
Mechanochemical transformations of tetrahydroaluminates and amides of lithium and sodium have been investigated using gas volumetric analysis, X-ray powder diffraction, solid-state nuclear magnetic resonance (NMR) and transmission electron microscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c014bfe93cb39f7e52b3b897c3fb1b4
https://doi.org/10.1016/j.actamat.2007.01.016
https://doi.org/10.1016/j.actamat.2007.01.016
Autor:
Marek Pruski, Rajeev Kumar, Wei Huang, Brian G. Trewyn, Yang Cai, Jerzy W. Wiench, Victor S.-Y. Lin
Publikováno v:
The Journal of Physical Chemistry C. 111:1480-1486
A mesoporous aluminum silicate (Al-MS) material has been successfully synthesized via a base-catalyzed co-condensation reaction. Solid-state NMR studies showed that the aluminum atoms are tetrahedrally coordinated and are stable up to at least 400 °
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddf0f6ec2fd84ebc8224acacf3ff4679
https://doi.org/10.1021/jp0659913
https://doi.org/10.1021/jp0659913
Autor:
Marek Pruski, George A. Kraus, Jerzy W. Wiench, Robert J. Angelici, James H. Espenson, Keith J. Stanger
Publikováno v:
Journal of Molecular Catalysis A: Chemical. 243:158-169
A silica-tethered version of the oxorhenium(V) dithiolate oxidation catalyst [–S(CH 2 ) 3 S–]Re(O)(Me)(PPh 3 ) was prepared and characterized by solid state 13 C and 31 P NMR spectroscopy. This tethered complex (SiO 2 -RTA)Re(O)(Me)(PPh 3 ) ( Fig
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ba02ffd8b39a5c571bd99babf48382e
https://doi.org/10.1016/j.molcata.2005.07.019
https://doi.org/10.1016/j.molcata.2005.07.019