Výsledky vyhledávání - "Jang-Hwan Hong"

Akademický článek

Synthesis and NMR-Study of 1-Trimethylsilyl Substituted Silole Anion [Ph4C4Si(SiMe3)]−•[Li]+ and 3-Silolenide 2,5-carbodianions {[Ph4C4Si(n-Bu)2]−2•2[Li]+, [Ph4C4Si(t-Bu)2]−2•2[Li]+} via Silole Dianion [Ph4C4Si]−2•2[Li]+

Autor: Jang-Hwan Hong

Publikováno v: Molecules, Vol 18, Iss 9, Pp 10568-10579 (2013)

1-Trimethylsilyl, 1-R (R = Me, Et, i-Bu)-2,3,4,5-tetraphenyl-1-silacyclopentadiene [Ph4C4Si(SiMe3)R] are synthesized from the reaction of 1-trimethylsilyl,1-lithio-2,3,4,5-tetraphenyl-1-silacyclopentadienide anion [Ph4C4SiMe3]−•[Li]+ (3) with met

Externí odkaz: https://doaj.org/article/41c8ca2b293b418699216039eac0f45c

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Akademický článek

Dissociation of the Disilatricyclic Diallylic Dianion [(C4Ph4SiMe)2]−2 to the Silole Anion [MeSiC4Ph4]− by Halide Ion Coordination or Halide Ion Nucleophilic Substitution at the Silicon Atom

Autor: Jang-Hwan Hong

Publikováno v: Molecules, Vol 16, Iss 10, Pp 8451-8462 (2011)

The reductive cleavage of the Si-Si bond in 1,1-bis(1-methyl-2,3,4,5-tetraphenyl-1-silacyclopentadiene) [(C4Ph4SiMe)2] (1) with either Li or Na in THF gives the silole anion [MeSiC4Ph4]− (2). The head-to-tail dimerization of the silole anion 2 give

Externí odkaz: https://doaj.org/article/9131775ee24d4ec2b2edc916c4b8f4e7

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Akademický článek

Synthesis and NMR-Study of the 2,3,4,5-Tetraethylsilole Dianion [SiC4Et4]2−•2[Li]+

Autor: Jang-Hwan Hong

Publikováno v: Molecules, Vol 16, Iss 9, Pp 8033-8040 (2011)

The previously unknown silole dianion [SiC4Et4]2−•2[Li]+ (3) was prepared by the sonication of 1,1-dichloro-2,3,4,5-tetraethyl-1-silacyclopentadiene [Cl2SiC4Et4, 2] with more than four equivalent of lithium in THF. 1H-, 13C-, and 29Si-NMR data of

Externí odkaz: https://doaj.org/article/7433f8afd37b423b8d8d84e5c39accad

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Akademický článek

Carbosilane and Carbosiloxane Dendrimers

Autor: Jang Hwan Hong, Chungkyun Kim

Publikováno v: Molecules, Vol 14, Iss 9, Pp 3719-3730 (2009)

This review focuses on novel carbosilane dendrimers containing branches with Si-C and Si-O-C bonds. Introduction of organic moieties into the dendrimers is performed by hydrosilation of carbon-carbon double/triple bonds. Versatile organic or organome

Externí odkaz: https://doaj.org/article/805197939ae54de68b339ba6efb4fef3

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