Quantum Mechanics and Molecular Mechanics Studies of the Low-Energy Conformations of 9-Crown-3 Anderson, Wayne P. ; Behm, Philip ; Glennon, Timothy M. ; Zerner, Michael C. Abstract Publication: Journal of Physical Chemistry A Pub Date: March 1997 DOI: 10.1021/jp962172h Bibcode: 1997JPCA..101.1920A