Patent · US Expired

Use in magnetometry by electronic paramagnetic resonance (EPR) of tetracyanoquinodimethane derivatives

US5254478A · kind A · utility

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Assignee

Inventor

Key dates

Filing dateMar 19, 1991
Grant dateOct 19, 1993
Priority date
Expiry dateMar 19, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T436/24
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

Use in magnetometry by electronic paramagnetic resonance (EPR) of tetracyanoquinodimethane derivatives in accordance with the formula: ##STR1## in which AH.sup.+ is a cation derived from a heterocyclic aromatic base having at least three aromatic rings and a single NH.sup.+ group included in at least one of the rings, AH.sup.+ being e.g. acridinium or benzoquinolinium.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.