straight or branched aliphatic hydrocarbon chain an about c2 to about c5 saturated or unsaturated straight or branched aliphatic hydrocarbon chain comprising one or more independently chosen heteroatoms an about c2 to about c5 saturated or unsaturated straight or branched aliphatic hydrocarbon chain comprising at least one independently chosen possible member selected from a carbocyclic ring having about 4 to about 7 ring members a heterocyclic ring having about 4 to about 7 ring members an aromatic ring having about 5 to about 7 ring members a heteroaromatic ring having about 5 to about 7 ring members or any above member comprising a substituent group on at least one available ring atom or any above about c2 to about c5 hydrocarbon chain having at least one independently chosen substituent group advantageously r 3 comprises a c2 saturated or unsaturated alkyl or alkenyl a c2 saturated or unsaturated alkyl or alkenyl which can be substituted with one or more substituents selected from hydroxyl halogen alkyl cycloalkyl aryl arylalkyl alkoxy alkoxycarbonyl alkylthio and amino or a c3 to c8 cycloalkyl which is bonded at c1 to the oxygen and at c2 to q r 4 comprises any group independently selected from r 1 or r 2 q comprises an ammonium group wherein said ammonium group can be substituted one or more times with a c1 to c6 alkyl radical or comprises a c3 to c7 heterocycle containing a nitrogen heteroatom which is bonded to the r 3 group wherein said heterocycle can contain one or more heteroatoms independently selected from nitrogen oxygen sulfur and.