1. Department of Civil, Environmental, and Geo- Engineering University of Minnesota, 500 Pillsbury Dr. SE, Minneapolis, Minnesota 55455, United States
2. Department of Chemistry, College of Saint Benedict and Saint John’s University, 37 South College Avenue, St. Joseph, Minnesota 56374, United States
3. Department of Chemistry, University of Minnesota, 207 Pleasant St. SE, Minneapolis, Minnesota 55455, United States