World-Record Molecules : The longest C-C bond and hypervalency

世界纪录分子：最长的 C-C 键和超价键

• 批准号: 21350022
• 负责人: SUZUKI Takanori
• 金额: $ 12.9万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21350022/
• 关键词: 構造有機化学; 物理有機化学; 共有結合; 長い結合; X線構造; ジラジカル; 超原子価

Based on our own results for hexaphenylethane derivative studied so far, it has been proposed that the compound with a ultralong C-C bond would be generated as a stable entity when the two unpaired electron are forced to stay in a proximity in the corresponding diradical without isomerization into the closed-shell species through resonance/peri-cyclic reactions. Based on the above concept have been designed a series of tetraarylpyracenes where the longest C-C bond ever [1.791(3)Å] was determined experimentally. The expandability of such prestrained bonds was also uncovered.

基于我们到目前为止对六苯基硫烷衍生物研究的结果，已经提出，当两个未配对的电子被迫保持在相应的diradical中，而无需通过共振剂/周期范围的差异，将产生具有超大C-C键的化合物作为稳定的实体。基于上述概念，已经设计了一系列的四核酸苯乙烯，其中最长的C-C键[1.791（3）Å]是通过实验确定的。还发现了这种可容纳键的可扩展性。

项目成果

Intramolecular Methylacridane-acridinium Complexes : Isolation, Structure, and Reactivities of the C-H Bridged Carbocation

分子内甲基吖啶-吖啶配合物：C-H 桥碳阳离子的分离、结构和反应性

• 发表时间: 2009
• 作者: Masami Sakamoto;et al;T. Suzuki
• 通讯作者: T. Suzuki

Intramolecular Chirality Transfer in trans-5, 6-Diary1-5, 6-dihydro-1, 10-phenanthroline-5, 6-diols : Solvato-and Halochromic Responses by Circular Dichroism

反式 5, 6-Diary1-5, 6-二氢-1, 10-菲咯啉-5, 6-二醇中的分子内手性转移：圆二色性的溶剂化和卤色响应

• 发表时间: 2010
• 期刊: Chem.Lett.
• 作者: T.Suzuki;Y.Miura;T.Nehira;H.Kawai;K.Fujiwara
• 通讯作者: K.Fujiwara

Molecular Gyroscope with a trans-cyclohexane-1,4-diimine rotor unit : Isolation and characterization of a geometrical isomer as a formal intermediate of hindered rotation

具有反式环己烷-1,4-二亚胺转子单元的分子陀螺仪：作为受阻旋转形式中间体的几何异构体的分离和表征

• 发表时间: 2012
• 期刊: Chem. Lett
• 作者: H. Sugino;H. Kawai;K. Fujiwara;T. Suzuki
• 通讯作者: T. Suzuki

Stereoselective construction of an anti-beta-alkoxy ether by Ireland-Claisen rearrangement for medium-ring ether synthesis

通过爱尔兰-克莱森重排立体选择性构建抗β-烷氧基醚以合成中环醚

• 发表时间: 2009
• 期刊: Tetrahedron Lett
• 影响因子: 1.8
• 作者: K. Fujiwara;N. Kawamura;H. Kawai;T. Suzuki
• 通讯作者: T. Suzuki

Advanced Electrochromism Based on Dynamic Redox Systems : Toward the Realization of Unimolecular Memory and Multi-functional Properties

基于动态氧化还原系统的先进电致变色：实现单分子记忆和多功能特性

• 发表时间: 2011
• 作者: M.Tashiro;M.Ehara;H.Fukuzawa;K.Ueda;C.Buth;N.Kryzhevoi;L.S.Cederbaum;T.Suzuki
• 通讯作者: T.Suzuki