Patent number: 6248733
Abstract: This invention relates to the use of compounds having the general structure:
wherein: Z1 and Z2 each independently represent an arene nucleus, which has from 5 to 14 ring atoms; G1 and G2 each independently represent a metal ligating group; R represents a hydrogen atom, a halogen atom, an alkyl group, an acylamino group, an alkoxy group, a sulfonamido group, an aryl group, a thiol group, an alkylthio group, an arylthio group, an alkylamino group, an arylamino group, an amino group, an alkoxycarbonyl group, an acyloxy group, a nitro group, a cyano group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfoxyl group, an arylsulfoxyl group, an aryloxyl group, a hydroxyl group, a thioamido group, a carbamoyl group, a suffamoyl group, a formyl group, an acyl group, a ureido group, an aryloxycarbonyl group, a silyl group, or a sulfoalkoxy group; L1 represents a nitrogen heterocycle; L2 represents a monodentate or polydentate (e.g.
Type:
Grant
Filed:
January 9, 1998
Date of Patent:
June 19, 2001
Assignee:
3M Innovative Properties Company
Inventors:
Kevin D. Landgrebe, Charles E. Shelburne, Terrance P. Smith, Gregory D. Cuny