翻訳と辞書
Words near each other
・ "O" Is for Outlaw
・ "O"-Jung.Ban.Hap.
・ "Ode-to-Napoleon" hexachord
・ "Oh Yeah!" Live
・ "Our Contemporary" regional art exhibition (Leningrad, 1975)
・ "P" Is for Peril
・ "Pimpernel" Smith
・ "Polish death camp" controversy
・ "Pro knigi" ("About books")
・ "Prosopa" Greek Television Awards
・ "Pussy Cats" Starring the Walkmen
・ "Q" Is for Quarry
・ "R" Is for Ricochet
・ "R" The King (2016 film)
・ "Rags" Ragland
・ ! (album)
・ ! (disambiguation)
・ !!
・ !!!
・ !!! (album)
・ !!Destroy-Oh-Boy!!
・ !Action Pact!
・ !Arriba! La Pachanga
・ !Hero
・ !Hero (album)
・ !Kung language
・ !Oka Tokat
・ !PAUS3
・ !T.O.O.H.!
・ !Women Art Revolution


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

tetrahedrane : ウィキペディア英語版
tetrahedrane

| Section2 =
}}
Tetrahedrane is a platonic hydrocarbon with chemical formula and a tetrahedral structure. Extreme angle strain (carbon bond angles deviate considerably from the tetrahedral bond angle of 109.5°) prevents this molecule from forming naturally.
==Organic tetrahedranes==
In 1978, Günther Maier prepared a stable tetrahedrane derivative with four ''tert''-butyl substituents. These substituents are very bulky, and completely envelop the tetrahedrane core. Maier suggested that bonds in the core are prevented from breaking because this would force the substituents closer together (corset effect) resulting in Van der Waals strain. Tetrahedrane is one of the possible platonic hydrocarbons and has the IUPAC name tricyclo()butane.
Unsubstituted tetrahedrane (C4H4) remains elusive, although it is predicted to be kinetically stable. One strategy that has been explored (but thus far failed) is reaction of propene with atomic carbon.〔''Tetrahedrane—Dossier of an Unknown'' Adelina Nemirowski, Hans Peter Reisenauer, and Peter R. Schreiner Chem. Eur. J. 2006, 12, 7411 – 7420 〕 Locking away a tetrahedrane molecule inside a fullerene has only been attempted in silico.〔''Endohedral complex of fullerene C60 with tetrahedrane, C4H4@C60'' Xiao-Yuan Ren a, Cai-Ying Jiang a, Jiang Wanga, Zi-Yang Liu Journal of Molecular Graphics and Modelling 27 (2008) 558–562 〕

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「tetrahedrane」の詳細全文を読む



スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース

Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.