data_marc_0m
_symmetry_cell_setting           'Monoclinic'
_symmetry_space_group_name_H-M   'C2/c  '
_cell_measurement_temperature     296(2)
_cell_measurement_reflns_used    2803
_cell_measurement_theta_min        2.35
_cell_measurement_theta_max       27.58
_exptl_crystal_description       'block'
_exptl_crystal_colour            'colourless'
_exptl_crystal_size_min          0.44
_exptl_crystal_size_mid          0.557
_exptl_crystal_size_max          0.60
_exptl_crystal_density_meas      0
_exptl_crystal_density_method    '?'
_exptl_absorpt_correction_type   'none'
_exptl_absorpt_correction_T_min  ?
_exptl_absorpt_correction_T_max  ?
_diffrn_ambient_temperature       296(2)
_diffrn_radiation_type           'MoK\a'
_diffrn_radiation_source         'sealed tube'
_diffrn_radiation_monochromator  'graphite'
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_detector_area_resol_mean ?
_diffrn_standards_number         0
_diffrn_standards_interval_count ?
_diffrn_standards_decay_%        ?
_computing_data_collection      'Bruker APEX2'
_computing_cell_refinement      'Bruker SAINT'
_computing_data_reduction       'Bruker SAINT'  A
_computing_structure_solution   'SHELXS-97 (Sheldrick, 2008)'
_computing_structure_refinement 'SHELXL-97 (Sheldrick, 2008)'
_computing_molecular_graphics   'Bruker SHELXTL'
_computing_publication_material 'Bruker SHELXTL'

loop_
 _exptl_crystal_face_index_h
 _exptl_crystal_face_index_k
 _exptl_crystal_face_index_l
 _exptl_crystal_face_perp_dist
    1.00    0.00    2.00    0.3010
    2.00    1.00   -1.00    0.2770
    0.00   -1.00    2.00    0.2400
    0.00    1.00   -2.00    0.2300
    2.00    1.00    0.00    0.2790
    1.00    0.00    1.00    0.3000
   -1.00    0.00   -1.00    0.3320
    1.00    1.00    0.00    0.2630
   -2.00    1.00   -2.00    0.2090
    1.00   -2.00    2.00    0.2020
   -2.00   -1.00   -1.00    0.3330
    1.00    2.00    0.00    0.2530
    1.00   -1.00    1.00    0.1740
   -1.00   -1.00   -1.00    0.3180
   -1.00    1.00    0.00    0.2440
    1.00    2.00    2.00    0.3130
   -1.00   -2.00   -2.00    0.3040
    0.00    1.00    1.00    0.2950
   -2.00    1.00    0.00    0.2450
   -1.00    1.00    1.00    0.2930
    1.00   -1.00   -1.00    0.2720
    2.00   -1.00   -2.00    0.2810
   -1.00    0.00    0.00    0.2200
    1.00    0.00    0.00    0.1920
   -7.00    2.00    6.00    0.2690
    5.00   -2.00   -6.00    0.2950
   -7.00    1.00    6.00    0.2370
   -5.00    0.00    1.00    0.2260
    2.00   -1.00   -6.00    0.2820
    7.00    0.00   -2.00    0.2250
   -3.00    0.00    4.00    0.2490
    7.00    1.00   -2.00    0.2420
   -7.00   -1.00    1.00    0.2650
    1.00    0.00   -6.00    0.2930
    3.00    1.00   -4.00    0.2670
   -6.00    2.00   -3.00    0.1920
   -6.00    1.00   -1.00    0.1860