Transition metal complexes having 2,2'-bipyridine ligands substituted by at least one ammonium alkyl radical
First Claim
1. A transition metal complex having three bidentate ligands at least two of which are substituted in the 4,4'"'"' position by quaternary ammonium alkyl groups with the formula ##STR6## wherein R1, R2, and R3 may be the same or different and each represents a straight chain or branched chain alkyl group having 1 to 5 carbon atoms or taken together with the adjacent nitrogen atom represent a heterocyclic radical having 5 to 7 carbon atoms;
- alk represents a straight chain or branched alkylene radical having 1 to 5 carbon atoms;
R4 represents the group -alk-N+ R1 R2 R3 wherein alk, R1, R2, and R3 have the meanings given above;
R5 to R8, 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+ (R1 R2 R3) wherein alk, R1, R2, and R3 have the meanings given above;
M represents a transition metal selected from iron, ruthenium or osmium;
x represents an anion selected from Cl, PF6-, BR-, or BF4- and n is an integer corresponding to the number of positive charges of the ligands and of the transition metal.
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Accused Products
Abstract
Complexes of the general formula I ##STR1## wherein R1, R2 and R3, 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; R4 to R8, 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+ (R1 R2 R3) wherein "alk", R1, R2 and R3 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.
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Citations
10 Claims
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1. A transition metal complex having three bidentate ligands at least two of which are substituted in the 4,4'"'"' position by quaternary ammonium alkyl groups with the formula ##STR6## wherein R1, R2, and R3 may be the same or different and each represents a straight chain or branched chain alkyl group having 1 to 5 carbon atoms or taken together with the adjacent nitrogen atom represent a heterocyclic radical having 5 to 7 carbon atoms;
- alk represents a straight chain or branched alkylene radical having 1 to 5 carbon atoms;
R4 represents the group -alk-N+ R1 R2 R3 wherein alk, R1, R2, and R3 have the meanings given above;
R5 to R8, 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+ (R1 R2 R3) wherein alk, R1, R2, and R3 have the meanings given above;
M represents a transition metal selected from iron, ruthenium or osmium;
x represents an anion selected from Cl, PF6-, BR-, or BF4- and n is an integer corresponding to the number of positive charges of the ligands and of the transition metal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- alk represents a straight chain or branched alkylene radical having 1 to 5 carbon atoms;
Specification