1. Department of Chemistry, Carleton University, 1125 Colonel By Drive, Ottawa, Ontario, Canada K1S 5B6
2. ASM Microchemistry, Väinö Auerin katu 12 A, Helsinki 00560, Finland
3. Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716
4. Materials Science Division, Accelrys, Inc., San Diego, California 92121