Patent ID: 7776182

Claim:
A compound selected from the group consisting of-compounds represented by formulas VII and VIIA where m ranges from 2 to 6; E is oxyl, hydroxyl, hydrogen, alkyl substituted by hydroxyl, by oxo or by carboxy, alkyl interrupted by oxygen, by —COO— or by —OCO—, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, bicycloalkyl, alkoxy, alkoxy substituted by hydroxyl, by oxo or by carboxy, alkoxy interrupted by oxygen, by —COO— or by —OCO—, cycloalkoxy, alkenyloxy, cycloalkenyloxy, aralkyl, aralkoxy, acyl, RCOO—, ROCOO—, RNCOO— or chloro where R is an aliphatic or aromatic moiety, X is an inorganic or organic anion, where the index j in formula VIIA equals the number of ammonium ions in the formula divided by the valency of X,