N
Nobukazu Yamahira
Researcher at Tohoku University
Publications - 6
Citations - 124
Nobukazu Yamahira is an academic researcher from Tohoku University. The author has contributed to research in topics: Ruthenium & Silylation. The author has an hindex of 6, co-authored 6 publications receiving 111 citations.
Papers
More filters
Journal ArticleDOI
[Ru(xantsil)(CO)(η6-toluene)]: Synthon for a Highly Unsaturated Ruthenium(II) Complex through Facile Dissociation of the Toluene Ligand [xantsil = (9,9-dimethylxanthene-4,5-diyl)bis(dimethylsilyl)]
Masaaki Okazaki,Nobukazu Yamahira,Jim Josephus Gabrillo Minglana,Takashi Komuro,Hiroshi Ogino,Hiromi Tobita +5 more
TL;DR: In this article, the reactions of [Ru(xantsil)(CO)(η6-C6H5CH3] with some electron-donating molecules were reported, and X-ray diffraction studies revealed that they take a typical octahedral geometry, in which the xantsil ligand is coordinated to the Ru(II) center in κ2(Si,Si) fashion.
Journal ArticleDOI
Synthesis, structure, and reactivity of hydridobis(silylene)ruthenium(IV)- xantsil complexes (xantsil = (9,9-dimethylxanthene-4,5-diyl)bis(dimethylsilyl)) - A stabilized form of key intermediates in the catalytic oligomerization- deoligomerization of hydrosilanes
Masaaki Okazaki,Jim Josephus Gabrillo Minglana,Nobukazu Yamahira,Hiromi Tobita,Hiroshi Ogino +4 more
TL;DR: In this article, a mechanism involving silyl(silylene) intermediates was proposed for the oligomerization-deoligomerization of HSiMe2SiMe3.
Journal ArticleDOI
Iron, Ruthenium, and Osmium Complexes Supported by the Bis(silyl) Chelate Ligand (9,9-Dimethylxanthene-4,5-diyl)bis(dimethylsilyl): Synthesis, Characterization, and Reactivity
Jim Josephus Gabrillo Minglana,Masaaki Okazaki,Kenji Hasegawa,Lung-Shiang Luh,Nobukazu Yamahira,Takashi Komuro,Hiroshi Ogino,Hiromi Tobita +7 more
TL;DR: The bis(silyl)-type bidentate ligand precursors xantsil-H2 (1a) and 2,7-di-t-butylxantsil H2 (2b) possessing the xanthene backbone were prepared by dilithiation of the 4,5-positions of 9,9-dimethyl...
Journal ArticleDOI
New hydrosilylation reaction of arylacetylene accompanied by C-H bond activation catalyzed by a xantsil ruthenium complex
TL;DR: In this paper, a new type of catalytic hydrosilylation of arylalkynes was induced by a 16-electron ruthenium bis(silyl) phosphine complex.
Journal ArticleDOI
Ru(xantsil)(CO)(PCy3): Facile Generation of a Coordinatively Unsaturated Ruthenium(II) Complex Bearing 14 Valence Electrons [xantsil = (9,9-dimethylxanthene-4,5-diyl)bis(dimethylsilyl)]
TL;DR: Ru(xantsil)(CO)3(PCy3) (3) as discussed by the authors was the first xantsil ligand to be bound to the ruthenium center in κ3(Si,Si,O) fashion.