Transition metal complexes having 2,2'-bipyridine ligands substituted by at least one ammonium alkyl radical
US5410059A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1993 |
| Grant date | Apr 25, 1995 |
| Priority date | — |
| Expiry date | Dec 14, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/344
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Complexes of the general formula I ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represent a straight or branched alkyl radical having 1 to 5 carbon atoms or together with the adjacent nitrogen atom a heterocyclic radical having 5 to 7 carbon atoms; "alk" represents a straight or branched alkylene radical having 1 to 5 carbon atoms; R.sub.4 to R.sub.8, which may be the same or different, represent hydrogen, or a hydroxy, alkoxy, aryloxy or primary secondary or tertiary amino group, or the group -alk-N.sup.+ (R.sub.1 R.sub.2 R.sub.3) wherein "alk", R.sub.1, R.sub.2 and R.sub.3 have the meanings given above; M represents a transition metal such as Fe, Ru or Os; X represents an anion and n is an integer corresponding to the number of positive charges of the complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.