1. Department of Chemistry; Oklahoma State University; Stillwater Oklahoma 74078
2. Department of Chemistry; University of Alabama; Tuscaloosa Alabama 35401
3. Ames Laboratory-USDOE and Electrical and Computer Engineering Department; Iowa State University; Ames Iowa 50011
4. Ames Laboratory-USDOE and Physics and Astronomy Department; Iowa State University; Ames Iowa 50011
5. Microelectronics Research Centre and Electrical and Computer Engineering Department; Iowa State University; Ames Iowa 50011