{TAIL ~ Q} is independently selected from an alkyl, carbocylic, heterocyclic, halo, carbamoyl, sulfamoyl, carbonamido, sulfonamido, keto, {HEAD ~ sulfo}, nitro, hydroxyl, carboxyl, amino, alkoxy, alkoxycarbonyl, aryloxy, or arylthio group 
{ TAIL ~ Q } is independently selected from an alkyl , carbocylic , heterocyclic , halo , carbamoyl , sulfamoyl , carbonamido , sulfonamido , keto , { HEAD ~ sulfo } , nitro , hydroxyl , carboxyl , amino , alkoxy , alkoxycarbonyl , aryloxy , or arylthio group
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH