<DIV>Thanks a lot for Torsten and Kevin.</DIV>
<DIV> </DIV>
<DIV>To Kevin, if I accepted the new structure proposed by 'x nn', the space group is totally changed, that is, from the original P-3m1 to C2/m. </DIV>
<DIV> </DIV>
<DIV>Best,</DIV>
<DIV> </DIV>
<DIV>stargmoon</DIV>
<DIV> </DIV>
<DIV> </DIV><p><hr SIZE=1>
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