1. a Department of Physics , Liquid Crystal Institute Kent State University , Kent , Ohio , 44242
2. b Department of Chemistry , Liquid Crystal Institute Kent State University , Kent , Ohio , 44242
3. c Department of Chemistry , Harvard University , Cambridge , Massachusetts , 02138
4. d Department of Physics , Liquid Crystal Institute Kent State University , Kent , Ohio , 44242
5. e Department of Physics , Sam Houston State University , Huntsville , Texas , 77340