Redox complex and preparation method therefor and use thereof
AssigneeShenzhen Muxin Technology Co., Ltd.
InventorsMIN LIU, JIN CAI, CHANG ZHAN
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Abstract
This application discloses a redox complex and preparation method therefor and use thereof. The redox complex contains a bridged 2,2′-biimidazole structure, through bridging two nitrogen atoms with active hydrogen, stabilizing the structure of the imidazole ring, preventing conformational isomerism of the 2,2′-biimidazole. When the bridged 2,2′-biimidazole structure coordinates with transition metals to form a complex, which significantly improves the efficiency and stability of the complex. Therefore, when the redox complex is used as the electron mediator in sensors, it exhibits a lower oxidation potential, while significantly extending the service life of the sensors.
Claims12
A redox complex, the redox complex represented by the following formula I:
- wherein, in formula I,
- R is a C1-C4 alkylene chain;
- X is each independently selected from a group consisting of hydroxyl, amino, ethenyl, alkynyl, azido, cyano, carboxyl, hydroxymethyl, sulfhydryl, isocyanate group, —RaOH and —OCORb;
- Ra is each independently methylene (—CH2—) or ethylene (—CH2—CH2—);
- Rb is a C1-C3 alkyl;
- R1, R2, R3 and R4 are each independently hydrogen (H) or alkyl;
- M is a transition metal;
- n is the number of counter cations;
- A is a counterion;
- wherein the structure of L2 represented by the following formula II:
- in formula II,
- R5 is each independently C1-C4 alkylene chain or ortho-substituted benzene ring;
- R10 is each independently hydrogen (H), —CH3 or —CH2CH3;
- R6, R7, R8 and R9 are each independently hydrogen (H) or alkyl.
Dependencies are inferred from the claim text.