1. Department of ChemistryUniversity of California Riverside CA 92521 USA
2. Advanced Materials and Liquid Crystal InstituteKent State University Kent OH 44242 USA
3. Department of Applied ChemistryGraduate School of EngineeringOsaka City University 3‐3‐138 Sugimoto Sumiyoshi‐ku Osaka 558‐8585 Japan
4. Materials Science and Engineering ProgramUniversity of California Riverside CA 92521 USA