Synthesis, crystal structures, magnetic, and thermal properties of divalent metal formate-formamide layered compounds.
Samarasekere, Pradeep; Wang, Xiqu; Jacobson, Allan J.; Tapp, Joshua; Möller, Angela; Inorganic chemistry 53 (2014) 244–256; doi:10.1021/ic402200v

data_4337493
_publ_section_title
;
 Synthesis, crystal structures, magnetic, and thermal properties of
 divalent metal formate-formamide layered compounds.
;
_journal_issue                   1
_journal_name_full               'Inorganic chemistry'
_journal_page_first              244
_journal_page_last               256
_journal_paper_doi               10.1021/ic402200v
_journal_volume                  53
_journal_year                    2014
_chemical_formula_sum            'C4 H8 Mg N2 O6'
_chemical_formula_weight         204.43
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_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                 91.0330(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.6278(9)
_cell_length_b                   8.4343(9)
_cell_length_c                   12.1534(13)
_cell_measurement_temperature    298(2)
_cell_volume                     884.25(16)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.991
_diffrn_measured_fraction_theta_max 0.943
_diffrn_measurement_device_type  'Bruker ApexII'
_diffrn_measurement_method       'narrow frame'
_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  0.0355
_diffrn_reflns_av_sigmaI/netI    0.0235
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            5855
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         28.33
_diffrn_reflns_theta_min         2.36
_exptl_absorpt_coefficient_mu    0.204
_exptl_absorpt_correction_T_max  0.9604
_exptl_absorpt_correction_T_min  0.9050
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   'Bruker XPREP 2008/2'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.536
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       'Square pyramid'
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.226
_refine_diff_density_min         -0.365
_refine_diff_density_rms         0.052
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.047
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     153
_refine_ls_number_reflns         2076
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.047
_refine_ls_R_factor_all          0.0330
_refine_ls_R_factor_gt           0.0308
_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^)+(0.0464P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0903
_refine_ls_wR_factor_ref         0.0915
_reflns_number_gt                1921
_reflns_number_total             2076
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic402200v_si_002.cif
_cod_data_source_block           5Mg
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/usr/data/users/saulius/automatic-downloads/current/ACS/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 2281 2013-09-26 08:29:07Z andrius 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               4337493