1. Center for Polymer and Organic Solids; Department of Chemistry and Biochemistry; University of California Santa Barbara; Santa Barbara CA 93106 USA
2. Materials Department; University of California Santa Barbara; Santa Barbara CA 93106 USA
3. Polyera Corporation; 8045 Lamon Avenue Skokie IL 60077 USA
4. Department of Chemistry; Northwestern University; Evanston IL 60208-3113 USA
5. Department of Chemistry; Faculty of Science; King Abdulaziz University; Jeddah Saudi Arabia