On Thu, 2014-02-27 at 15:44 +0530, kulwinder kaur wrote: > prefix='mg2Ge', > prefix= 'mg2sGe' they aren't the same, are they? P. -- Paolo Giannozzi, Dept. Chemistry&Physics&Environment, Univ. Udine, via delle Scienze 208, 33100 Udine, Italy Phone +39-0432-558216, fax +39-0432-558222