書誌事項
- タイトル別名
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- Valence-isomerization Reaction of Quadricyclane to Norbornadiene Promoted by Lithium TFPB
- リチウム イオン ニ ヨッテ カソク サレタ クアドリシクラン カラ ノルボルナジエン エ ノ ゲンシカ イセイカ ハンノウ
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抄録
Thermally-forbidden reactions of quadricyclane to norbornadiene were accelerated by a catalytic amount of alkaline salts, where the presence of water and the nature of the counter anion and solvent affected the rate. Non-hydrated, highly electrophilic lithium ions obtained from Lithium tetrakis(3,5-bis(trifluoromethyl)phenyl)borate (LiTFPB) promotes the valence-isomerization of quadricyclane to norbomadiene extremely; the relative rates in the presence of LiTFPB, LiTFPB・H_2O, and NaTFPB are 470:76:2.7 in CDCl_3 and 297:9.7:1 in C_6D_5CD_3. This is explained by the difference of the binding energy of lithium and sodium ion. The rates in CDCl_3 are higher than those in C_6D_5CD_3, which is supported by theoretical calculations.
収録刊行物
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- 九州大学機能物質科学研究所報告
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九州大学機能物質科学研究所報告 15 (2), 177-181, 2001-12-14
九州大学機能物質科学研究所
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詳細情報 詳細情報について
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- CRID
- 1390290699813120640
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- NII論文ID
- 110006177595
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- NII書誌ID
- AN10060378
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- ISSN
- 09143793
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- DOI
- 10.15017/7947
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- HANDLE
- 2324/7947
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- NDL書誌ID
- 6065807
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用可