Patent ID: 7932236

Claim:
A compound having a structure according to Formula I: wherein X 2 is a member selected from wherein R 1 , R 2 , R 3 , R 4 , and R 5 are members independently selected from substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted arylalkyl, and substituted or unsubstituted heteroarylalkyl; Z 2 is a member selected from substituted or unsubstituted alkenyl, substituted or unsubstituted pyridinyl, and substituted or unsubstituted phenyl; with the proviso that when R 1 is —(CH 2 ) 16 —CH 3 , then Z 2 is not unsubstituted pyridinyl,