[NH2NH3][M(HCOO)3] (M = Mn2+, Zn2+, Co2+and Mg2+): structural phase transitions, prominent dielectric anomalies and negative thermal expansion, and magnetic ordering
Chen, Sa; Shang, Ran; Hu, Ke-Li; Wang, Zhe-Ming; Gao, Song; Inorg. Chem. Front. 1 (2014) 83–; doi:10.1039/C3QI00034F

data_4350737
_publ_section_title
;
 [NH2NH3][M(HCOO)3] (M = Mn2+, Zn2+, Co2+and Mg2+): structural phase
 transitions, prominent dielectric anomalies and negative thermal
 expansion, and magnetic ordering
;
_journal_issue                   1
_journal_name_full               'Inorg. Chem. Front.'
_journal_page_first              83
_journal_paper_doi               10.1039/C3QI00034F
_journal_volume                  1
_journal_year                    2014
_chemical_formula_sum            'C3 H8 Mg N2 O6'
_chemical_formula_weight         192.42
_space_group_IT_number           173
_space_group_name_Hall           'P 6c'
_space_group_name_H-M_alt        'P 63'
_symmetry_cell_setting           hexagonal
_symmetry_space_group_name_H-M   'P 63'
_atom_sites_solution_hydrogens   difmap
_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                120.00
_cell_formula_units_Z            2
_cell_length_a                   7.8798(3)
_cell_length_b                   7.8798(3)
_cell_length_c                   7.5682(4)
_cell_measurement_reflns_used    4448
_cell_measurement_temperature    400.0
_cell_measurement_theta_max      30.2231
_cell_measurement_theta_min      2.9790
_cell_volume                     406.96(3)
_computing_cell_refinement       'CrysAlisPro (Agilent Technologies, 2012)'
_computing_data_collection       'CrysAlisPro (Agilent Technologies, 2012)'
_computing_data_reduction        'CrysAlisPro (Agilent Technologies, 2012)'
_computing_molecular_graphics    'Bruker SHELXTL V5.1 (Sheldrick, 1998)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      400.0
_diffrn_detector_area_resol_mean 10.3914
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, AtlasCCD'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_source         'SuperNova (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0256
_diffrn_reflns_av_sigmaI/netI    0.0115
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            6712
_diffrn_reflns_theta_full        28.19
_diffrn_reflns_theta_max         28.19
_diffrn_reflns_theta_min         4.02
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.216
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.75808
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm (Blessing 1995, 1997).
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.570
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             200
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.189
_refine_diff_density_min         -0.201
_refine_diff_density_rms         0.038
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.0(4)
_refine_ls_extinction_coef       0.006(15)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.117
_refine_ls_hydrogen_treatment    constr.
_refine_ls_matrix_type           full
_refine_ls_number_parameters     65
_refine_ls_number_reflns         678
_refine_ls_number_restraints     15
_refine_ls_restrained_S_all      1.120
_refine_ls_R_factor_all          0.0272
_refine_ls_R_factor_gt           0.0260
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0432P)^2^+0.0444P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0698
_refine_ls_wR_factor_ref         0.0705
_reflns_number_gt                654
_reflns_number_total             678
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3qi00034f.txt
_cod_data_source_block           4Mg-400K
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Hexagonal' was changed to
'hexagonal' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_sg_symbol_H-M      'P 6(3)'
_cod_database_code               4350737