US3941792A
Expired / Lapsed
US
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Charge transfer complexes containing 7,7,8,8-tetracyanoquinodimethane and an N-substituted quaternary quinoline
Assignee: Panasonic Holdings Corp
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Filing: 1973-06-07
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Granted: 1976-03-02
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Expires: 1993-06-07
Abstract
Abstract Charge transfer complexes composed of 7,7,8,8-tetracyanoquinodimethane and a quaternary nitrogen-containing heterocyclic compound, the hydrogen at N-position of the heterocyclic compound being substituted by a group such as an alkyl group, an alkylene group or a cycloalkyle group. The complex may be either an abnormal one which contains neutral 7,7,8,8,-tetracyanoquinodimethane in an amount deviated from 1 mole per 1 mole of the complex, or a normal one which contains 1 mole of neutral 7,7,8,8-tetracyanoquinodimethane per 1 mole of the complex.
Inventors
- 👤 Mutsuaki Murakami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:58
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/04; C07D215/10; H; H01; H01C; H01C7/00; H01C7/04; H01C7/049
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
47 words
A charge transfer complex of 7,7,8,8-tetracyanoquinodimethane (TCNQ) and an N-alkylated quinoline, the alkyl group having 1 to 18 carbon atoms, the complex comprising both ionized TCNQ molecules and non-ionized molecules, the mole number of the non-ionized TCNQ molecules per mole of the complex being other than one.
Claim 2
Dependent Claim
47 words
A charge transfer complex of 7,7,8,8-tetracyanoquinodimethane (TCNQ) and an N-alkylated quinoline, the alkyl group having 1 to 18 carbon atoms, the complex comprising both ionized TCNQ molecules and non-ionized molecules, the mole number of the non-ionized TCNQ molecules per mole of the complex being other than one.
Claim 3
Dependent Claim
61 words
A charge transfer complex as claimed in claim 1 wherein said complex is one selected from the group consisting of (N-methyl quinolinium) + (TCNQ) - (TCNQ) 0 .6, (N-ethyl quinolinium) + (TNCQ) - (TNCQ) 0 .8, (N-n-propyl quinolinium) + (TNCQ) - (TNCQ) 0 .9, (N-isopropyl quinolinium) + (TCNQ) - (TNCQ) 1 .2, and (N-tert-butyl quinolinium) + (TCNQ) - (TNCQ) 2 .1.
References Cited (Backward Citations)
US2766135A
Cited
US2833809A
Cited
US2809972A
Cited
US3115506A
Cited
US3334109A
Cited
US3681353A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |