Chemical and Structural Diversity in Chiral Magnesium Tartrates and their Racemic andMesoAnalogues
Kam, Kinson C.; Young, Karen L. M.; Cheetham, Anthony K.; Crystal Growth & Design 7 (2007) 1522–; doi:10.1021/cg070388a

data_4504368
_publ_section_title
;
 Chemical and Structural Diversity in Chiral Magnesium Tartrates and their
 Racemic andMesoAnalogues
;
_journal_issue                   8
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1522
_journal_paper_doi               10.1021/cg070388a
_journal_volume                  7
_journal_year                    2007
_chemical_formula_sum            'C4 H14 Mg O11'
_chemical_formula_weight         262.46
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           50
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2b'
_symmetry_space_group_name_H-M   'P b a n :2'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   13.576(6)
_cell_length_b                   12.124(5)
_cell_length_c                   13.478(6)
_cell_measurement_temperature    293(2)
_cell_volume                     2218.4(17)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.953
_diffrn_measured_fraction_theta_max 0.953
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0525
_diffrn_reflns_av_sigmaI/netI    0.0388
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7250
_diffrn_reflns_theta_full        26.40
_diffrn_reflns_theta_max         26.40
_diffrn_reflns_theta_min         2.25
_exptl_absorpt_coefficient_mu    0.208
_exptl_crystal_density_diffrn    1.572
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             1104
_refine_diff_density_max         0.346
_refine_diff_density_min         -0.240
_refine_diff_density_rms         0.061
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.081
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     203
_refine_ls_number_reflns         2181
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.081
_refine_ls_R_factor_all          0.0640
_refine_ls_R_factor_gt           0.0452
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0730P)^2^+0.0402P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1172
_refine_ls_wR_factor_ref         0.1278
_reflns_number_gt                1599
_reflns_number_total             2181
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg070388asi20070423_072236.cif
_cod_data_source_block           1-MgDL100
_cod_original_cell_volume        2218.3(16)
_cod_original_sg_symbol_H-M      Pban
_cod_database_code               4504368