Affiliation: | 1. Department of Chemistry, North‐Eastern Hill University, NEHU Permanent Campus, Umshing, Shillong 793 022, India;2. Department of Chemistry and Physics, University of the District of Columbia, Washington DC 20008, USA;3. X‐ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia |