Index

Modulated structures dictionary (msCIF) version 3.2.1

_diffrn_refln.index_m_list

Definition:

   

      Additional Miller indices needed to write the reciprocal vector
      of a certain reflection in the basis described in
      _cell_reciprocal_basis_description. Following the usual
      convention, such a vector would be expressed as

           H=h*a*+k*b*+l*c*+m1*q(1)+...+m8*q(8),
     
      where h,k,l are the usual _diffrn_refln.index_, and q(1)...q(8)
      represent the independent wave vectors given by
      _cell_wave_vector.xyz and identified by _cell_wave_vector.seq_id.
      Therefore, the total number of indices of a given reflection must
      match (_cell.modulation_dimension + 3) and the order of the
      additional indices must be consistent with the codes given in
      _cell_wave_vector.seq_id. These indices need not match
      _refln.index_m_list values if a transformation of the original
      measured cell has occurred.

Type: Integer

Values appear in List context.

Dimension: []

Evaluation method:

       With  r  as  diffrn_refln

           temp.index_m_list = 

                  [ r.index_m_1, r.index_m_2, r.index_m_3, r.index_m_4,
                    r.index_m_5, r.index_m_6, r.index_m_7, r.index_m_8 ]

       #Not meaningful indices are removed here
 
           diffrn_refln.index_m_list =                     
                   temp.index_m_list[0:_cell.modulation_dimension – 1]

Category:
diffrn_refln