Suitable substitution groups include, but are not limited to, halogens such as chlorine, bromine and fluorine; amines; amides; esters; ethers; glycols, including ethylene glycols; hydroxy groups; aldehydes; alcohols; carboxylic acids; nitro groups; sulfonyl; silicon moieties; sulfur containing moieties; phosphorus containing moieties; carbonyl and other alkyl and aryl groups as defined herein, tar