1. Department
of Chemistry, University of Guelph, Guelph,
Ontario N1G 2W1, Canada
2. Department of Chemistry and
Biochemistry, Queens College, City University of New York, Flushing, New York 11367, United States
3. Department of Mathematics and
Statistics, University of Guelph, Guelph,
Ontario N1G 2W1, Canada
4. Department of Mathematics, Queens
College, City University of New York, Flushing,
New York 11367, United States