1. Department of Chemistry, Dalhousie University, Halifax, Nova Scotia B3H 4R2 (Canada)
2. Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602 (USA)
3. X‐ray Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2 (Canada)
4. Research and Technology, Chevron Phillips Chemical Company LP, 1862 Kingwood Drive, Kingwood, TX 77339 (USA)