1997 Fiscal Year Final Research Report Summary
Purification of Fullerene by using of Inclusion Compouns and Function of Their Inclusion Complexes
| Project/Area Number |
07555589
|
|---|
| Research Category |
Grant-in-Aid for Scientific Research (A)
|
| Allocation Type | Single-year Grants |
|---|
| Section | 展開研究 |
|---|
| Research Field |
Synthetic chemistry
|
|---|
| Research Institution | KYUSYU UNIVERSITY |
|---|
Principal Investigator |
SHINKAI Seiji Kyushu University, Faculty of Engineering, Professor, 工学部, 教授 (20038045)
|
|---|
| Co-Investigator(Kenkyū-buntansha) |
IKEDA Atsushi Kyushu University, Faculty of Engineering, Research Associate, 工学部, 助手 (90274505)
TAKEUCHI Masayuki Kyushu University, Faculty of Engineering, Research Associate, 工学部, 助手 (70264083)
HAMACHI Itaru Kyushu University, Faculty of Engineering, Assistant Professor, 工学部, 助教授 (90202259)
|
|---|
| Project Period (FY) |
1995 – 1997
|
| Keywords | Fullerene / Calixarene / Complex / Allosteric effect / Alkali metal / リチウムイオン |
|---|
| Research Abstract |
In order to find calix [n] arenes which can interact with [60] fullerene in solution we have screened a number of different calix [n] arenes by spectroscopic methods. We eventually discovered such three calix [n] arenes (p-tert-butylcalix [5] arene, p-tert-butylcalix [6] arene, and ptert-butylhomooxacalix [3] arene) which could accept [60] fullerene even in solution. They commonly possess a cone conformation and a benzene ring inclination suitable to [60] fullerene inclusion. Furthermore, it was found that calix [n] aryl ester derivatives, which cannot interact with [60] fullerene, become excellent [60] fullerene-acceptors in the presence of certain specific metal cations. This was attributed to a metal-induced conformational change to preorganeze cone calix [n] aryl esters. This phenomenon is a sort of positive allosterism, which is the first example in fullerene chemistry. We believe that these findings will open a door to new fullerene-calix [n] arene conjugate chemistry.
|
