Patent ID: 8293734

Claim:
A compound having a structure of Formula I: wherein n is 1 V and W are independently H or CH 3 , and one of X or Y is H and the other is one of Formulae IIa or IIb, wherein Formulae IIa and IIb have general structures of: wherein Formula IIa comprises a single ring labeled at a 3-position and a 4-position and having R 1 as a substituent, and Formula IIb comprises a first ring labeled at a 3-position and a 4-position and having as substituents both R 2 and a terminal ring labeled at a 4-position and having R 1 as a substituent, wherein the single ring of Formula IIa and the first ring and the terminal ring of Formula IIb comprise C, CH, or aza at each ring position, wherein the single ring of Formula IIa and the first ring and the terminal ring of Formula IIb independently comprise no more than two aza, Z in Formulae IIa and IIb is CH 2 or a direct bond, and R 1 and R 2 are independently any one or two of H, F, Cl, I, CN, CF 3 , OCF 3 , OCH 3 , or OCH 2 Ph.