Steric and energetic properties of the Cl-–C6H6–Arn heterocluster M. Albertí, A. Castro, A. Laganà, M. Moix, F. Pirani and D. Cappelletti Eur. Phys. J. D, 38 1 (2006) 185-191 Published online: 16 November 2005 DOI: 10.1140/epjd/e2005-00303-6