1. Department of Chemistry, Texas A&M University, College Station, TX 77843, USA
2. Theoretical Division, MS B268, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
3. Biological Chemistry Department, Ariel University Center of Samaria, Ariel, Israel
4. Chemistry Department, Ben‐Gurion University of the Negev, Beer‐Sheva, Israel