Search Results - "Ichinohe, Masaaki"

An Isolable NHC-Stabilized Silylene Radical Cation: Synthesis and Structural Characterization by Tanaka, Hiroaki, Ichinohe, Masaaki, Sekiguchi, Akira

“…The silyl-substituted silylene–NHC complex bis(tri-tert-butylsilyl)silylene–(1,3,4,5-tetramethylimidazol-2-ylidene) [( t Bu3Si)2Si:←NHCMe, 2] was synthesized…”
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A Stable Compound Containing a Silicon-Silicon Triple Bond by Sekiguchi, Akira, Kinjo, Rei, Ichinohe, Masaaki

“…The reaction of 2,2,3,3-tetrabromo-1,1,4,4-tetrakis[bis (trimethylsily)methyl]-1,4-diisopropyltetrasilane with four equivalents of potassium graphite ($KC_8$)…”
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An Isolable Disilyne Anion Radical and a New Route to the Disilenide Ion upon Reduction of a Disilyne by Kinjo, Rei, Ichinohe, Masaaki, Sekiguchi, Akira

“…The reaction of 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyltetrasila-2-yne 1 with t BuLi produced disilenyllithium derivative 2, the product of…”
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Addition of Amines and Hydroborane to the Disilyne RSiSiR (R = Si i Pr[CH(SiMe3)2]2) Giving Amino- and Boryl-Substituted Disilenes by Takeuchi, Katsuhiko, Ikoshi, Masao, Ichinohe, Masaaki, Sekiguchi, Akira

“…The reaction of 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyltetrasila-2-yne 1 with diethylamine or diphenylamine produced the corresponding…”
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Isolable Aryl-Substituted Silyl Radicals: Synthesis, Characterization, and Reactivity by Taira, Kanako, Ichinohe, Masaaki, Sekiguchi, Akira

“…Isolable aryl‐substituted silyl radicals (tBu2MeSi)2(Ar)Si. (Ar=C6H5, 4‐tBuC6H4, 4‐PhC6H4, 3,5‐tBu2C6H3) were synthesized by the reaction of the corresponding…”
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Synthesis and Striking Reactivity of an Isolable Tetrasilyl-Substituted Trisilaallene by Tanaka, Hiroaki, Inoue, Shigeyoshi, Ichinohe, Masaaki, Driess, Matthias, Sekiguchi, Akira

“…The first silyl-substituted Si3-allene, namely 1,1,3,3-tetrakis(di-tert-butylmethylsilyl)trisilaallene (4), was prepared as an air- and moisture-sensitive red…”
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Hydroboration of Disilyne RSiSiR (R = Si i Pr[CH(SiMe3)2]2), Giving Boryl-Substituted Disilenes by Takeuchi, Katsuhiko, Ichinohe, Masaaki, Sekiguchi, Akira

“…The reaction of 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyltetrasila-2-yne (1) with hydroboranes afforded boryl-substituted disilenes…”
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Theoretical Study on the Enhancement of the Second Hyperpolarizabilities of Si‑, Ge-Disubstituted Quinodimethanes: Synergy Effects of Open-Shell Nature and Intramolecular Charge Transfer by Fukuda, Kotaro, Nozawa, Takeshi, Yotsuyanagi, Hiroko, Ichinohe, Masaaki, Sekiguchi, Akira, Nakano, Masayoshi

“…We have investigated the second hyperpolarizabilities (γ), that is, the third-order nonlinear optical (NLO) properties at the molecular scale, of the realistic…”
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The Isolable Cation Radical of Disilene: Synthesis, Characterization, and a Reversible One-Electron Redox System by Inoue, Shigeyoshi, Ichinohe, Masaaki, Sekiguchi, Akira

“…The highly twisted tetrakis(di-tert-butylmethylsilyl)disilene 1 was treated with Ph3C+·BAr4 − (BAr4 −: TPFPB = tetrakis(pentafluorophenyl)borate) in toluene,…”
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Isolable Silylene Anion Radical:  Structural Characteristics in the Solid State and in Solution by Inoue, Shigeyoshi, Ichinohe, Masaaki, Sekiguchi, Akira

“…Tetrakis(di-tert-butylmethylsilyl)disilene (1) was treated with 2.2 equiv of metal naphthalenide (M = Li, Na) in THF. When a crown ether was added to the…”
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Disilenyl Anions Derived from Reduction of Tetrakis(di-tert-butylmethylsilyl)disilene with Metal Naphthalenide through a Disilene Dianion Intermediate: Synthesis and Characterization by Inoue, Shigeyoshi, Ichinohe, Masaaki, Sekiguchi, Akira

“…Tetrakis(di-tert-butylmethylsilyl)disilene (3) was treated with 2 equiv. of metal naphthalenide (M = Li, Na, and K) in THF to give the disilenyl anion by…”
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A (Tetrasilacyclobutadiene)tricarbonyliron Complex [{η4-(tBu2MeSi)4Si4}Fe(CO)3]: The Silicon Cousin of Pettit's (Cyclobutadiene)tricarbonyliron Complex [(η4-H4C4)Fe(CO)3] by Takanashi, Kazunori, Lee, Vladimir Ya, Ichinohe, Masaaki, Sekiguchi, Akira

“…All in the family: [(η4‐R4Si4)Fe(CO)3] 2 (R=SiMetBu2) represents a neutral silicon congener of a (cyclobutadiene)tricarbonyliron complex and was synthesized by…”
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Isolable Alkali-Metal-Substituted Silyl Radicals ( t Bu2MeSi)2SiM (M = Li, Na, K): Electronically and Sterically Accessible Planar Silyl Radicals by Inoue, Shigeyoshi, Ichinohe, Masaaki, Sekiguchi, Akira

“…Tetrakis(di-tert-butylmethylsilyl)disilene (1) was treated with 2.2 equiv of MNp (metal naphthalenide, M = Na, K) in THF followed by addition of 2 equiv of a…”
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Reactivity of the Disilyne RSiSiR (R = Si i Pr[CH(SiMe3)2]2) toward Nitriles: Unexpected Formation of Triaza-1,4-disilabicyclo[2.2.2]octa-2,5,7-triene Derivatives by Takeuchi, Katsuhiko, Ichinohe, Masaaki, Sekiguchi, Akira, Guo, Jing-Dong, Nagase, Shigeru

“…The reaction of 1,1,4,4-tetrakis[bis(trimethylsilyl)methyl]-1,4-diisopropyl-2-tetrasilyne ( 1 ) with acetonitrile or benzonitrile produced the tris adduct…”
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Cyclobutadiene Dianions Consisting of Heavier Group 14 Elements:  Synthesis and Characterization by Lee, Vladimir Ya, Takanashi, Kazunori, Matsuno, Tadahiro, Ichinohe, Masaaki, Sekiguchi, Akira

“…The first “heavy” cyclobutadiene dianions (CBD2-), tetrakis(di-tert-butylmethylsilyl)-1,2-disila-3,4-digermacyclobutadiene dianion 2 2 - and…”
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Silylcarbene-to-Silene Rearrangement: Stable 1,2-Dihydrosilenes in Solution via the Silylcarbene Route by Tanaka, Hiroaki, Ichinohe, Masaaki, Sekiguchi, Akira

“…1,2-Dihydrosilenes were synthesized by the photolysis of silyldiazomethane derivatives bearing one bulky trialkylsilyl group SiR[CH(SiMe3)2]2 (R=Me and i-Pr)…”
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(η5-Cyclopentadienyl)(η4-tetrasila- and η4-trisilagermacyclobutadiene)cobalt: Sandwich Complexes Featuring Heavy Cyclobutadiene Ligands by Takanashi, Kazunori, Lee, Vladimir Ya, Ichinohe, Masaaki, Sekiguchi, Akira

“…(η5‐Cyclopentadienyl)(η4‐tetrasilacyclobutadiene)cobalt{[(η4‐R4Si4)CoCp], 2} and (η5‐cyclopentadienyl)(η4‐trisilagermacyclobutadiene)cobalt…”
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1,2,5,6-Tetrasilabenzobenzvalene: A Valence Isomer of 1,2,3,4-Tetrasilanaphthalene by Takanashi, Kazunori, Lee, Vladimir Ya, Ichinohe, Masaaki, Sekiguchi, Akira

“…1,2,5,6-Tetrasilabenzobenzvalene, a valence isomer of 1,2,3,4-tetrasilanaphthalene, was synthesized and structurally characterized by the coupling reaction of…”
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The Homocyclotrisilenylium Ion:  A Free Silyl Cation in the Condensed Phase by Sekiguchi, Akira, Matsuno, Tadahiro, Ichinohe, Masaaki

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Reactivity of the disilyne RSiSiR (R = SiiPr[CH(SiMe3)2]2) toward bis(silylcyanide) forming a 1,4-diaza-2,3-disilabenzene analog by Takeuchi, Katsuhiko, Ichinohe, Masaaki, Sekiguchi, Akira, Guo, Jing-Dong, Nagase, Shigeru

“…The reaction of 1,1,4,4‐tetrakis[bis(trimethylsilyl)methyl]‐1,4‐diisopropyl‐2‐tetrasilyne 1 with 1,3‐bis(cyanodimethylsilyl)propane 4 produced the 1:1 adduct,…”
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