Title:
PHOTOCHARGE SEPARATION USING SUPRAMOLECULAR COMPLEX OF &pgr -ELECTRON TYPE EXTENDED VIOLOGEN DERIVATIVE AND PORPHYRIN
Document Type and Number:
WIPO Patent Application WO/2005/087741
Kind Code:
A1
Abstract:
Long-lived charge separation is attained with high efficiency by the use of a supramolecular complex utilizing &pgr -&pgr interaction. A supramolecular complex is formed by &pgr -&pgr interaction between extended viologen, the extended viologen having heteroaryls coupled together by a linkage group with &pgr -electron conjugated system, and porphyrin. As a result of study of photoelectron transfer reaction, it has been found that within the supramolecular complex, efficient electron transfer occurs from the singlet excited state of porphyrin to extended viologen, thereby obtaining a charge separation condition of extremely long life exceeding 1 millisecond.
Inventors:
FUKUZUMI SHUNICHI (JP)
Application Number:
PCT/JP2005/004134
Publication Date:
September 22, 2005
Filing Date:
March 09, 2005
Export Citation:
Assignee:
JAPAN SCIENCE & TECH AGENCY (JP)
FUKUZUMI SHUNICHI (JP)
FUKUZUMI SHUNICHI (JP)
International Classes:
B01J31/28; B01J35/00; C01B3/02; C01B3/04; C07D213/53; C07D487/22; H01L31/04; C07D215/12; H01L51/42; H01M14/00; (IPC1-7): C07D213/53; C07D215/12; C07D487/22; B01J31/28; C01B3/04; H01L31/04; H01M14/00
Foreign References:
| JP2001097977A | 2001-04-10 | |||
| JP2002025635A | 2002-01-25 | |||
| JP2003036896A | 2003-02-07 | |||
| JP2000261016A | 2000-09-22 | |||
| JP2005111298A | 2005-04-28 | |||
| JP2005060304A | 2005-03-10 |
Other References:
SHELNUTT J.A. ET AL: "Electronic Structure of the Porphyrin Ring in an Electrostatically Bound pi-pi Xomplex. Methylviologen-Metallouroporphyrin Compexes.", J.PHYS.CHEM, vol. 88, no. 25, 6 December 1984 (1984-12-06), pages 6121 - 6127, XP002989418
SLAMA-SCHWOK A. ET AL: "Caroviologen molecular wires:pulse radiolysis of bis (pyridinium) polyenes.", J.PHYS.CHEM, vol. 96, no. 25, 10 December 1992 (1992-12-10), pages 10559 - 10565, XP002989419
See also references of EP 1724261A4
SLAMA-SCHWOK A. ET AL: "Caroviologen molecular wires:pulse radiolysis of bis (pyridinium) polyenes.", J.PHYS.CHEM, vol. 96, no. 25, 10 December 1992 (1992-12-10), pages 10559 - 10565, XP002989419
See also references of EP 1724261A4
Attorney, Agent or Firm:
Yamamoto, Shusaku (Crystal Tower 2-27, Shiromi 1-chome, Chuo-k, Osaka-shi Osaka 15, JP)
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