Endcap problem



Dear All,
 Each end of the (5,5) carbon nanotube is capped with a C60 hemisphere.
 Could you please tell me how to cap the (6,6), (7,7), (8,8), (9,9) and
 (10,10) carbon nanotubes.
 Thank you very much.
 Regards,
 --
 **************************************************************************
 Nguyen Thanh Loc
 Department of Chemistry,
 Free University of Brussels.
 Pleinlaan2, B-1050 Brussels, Belgium.
 Tel: (32)(2) 629 3580    Fax: (32) (2) 629 3317
 Email: lnguyent (- at -) vub.ac.be
 *************************************************************************