Contribution of Intramolecular NH...O Hydrogen Bonds to Magnesium-Carboxylate Bonds
Taka-aki Okamura; Junko Nakagawa; Inorganic Chemistry 52 (2013) 10812–10824; doi:10.1021/ic400671v

data_4336135
_publ_section_title
;
 Contribution of Intramolecular NH...O Hydrogen Bonds to
 Magnesium-Carboxylate Bonds
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              10812
_journal_page_last               10824
_journal_paper_doi               10.1021/ic400671v
_journal_volume                  52
_journal_year                    2013
_chemical_formula_moiety         'C22 H30 N4 Mg O12'
_chemical_formula_sum            'C22 H30 Mg N4 O12'
_chemical_formula_weight         566.81
_chemical_name_systematic
; 
[Mg{2,6-(CH3CONH)2C6H3COO}2(H2O)4]
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_Int_Tables_number      2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             'Sat Jun 18 20:48:34 2005'
_audit_creation_method           SHELXL-97
_cell_angle_alpha                70.874(16)
_cell_angle_beta                 75.991(15)
_cell_angle_gamma                79.864(15)
_cell_formula_units_Z            1
_cell_length_a                   7.5807(17)
_cell_length_b                   8.289(3)
_cell_length_c                   11.245(4)
_cell_measurement_reflns_used    5448
_cell_measurement_temperature    200
_cell_measurement_theta_max      27.6
_cell_measurement_theta_min      3.1
_cell_volume                     644.1(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      200
_diffrn_detector_area_resol_mean 10.00
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID Imaging Plate'
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71075
_diffrn_reflns_av_R_equivalents  0.0302
_diffrn_reflns_av_sigmaI/netI    0.0395
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6384
_diffrn_reflns_theta_full        27.49
_diffrn_reflns_theta_max         27.49
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    0.141
_exptl_absorpt_correction_T_max  0.952
_exptl_absorpt_correction_T_min  0.945
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(Higashi, 1995)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.461
_exptl_crystal_description       block
_exptl_crystal_F_000             298
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.350
_exptl_crystal_size_min          0.350
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.384
_refine_diff_density_rms         0.056
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.048
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     198
_refine_ls_number_reflns         2931
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.048
_refine_ls_R_factor_all          0.0427
_refine_ls_R_factor_gt           0.0385
_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^+0.2755P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0994
_refine_ls_wR_factor_ref         0.1018
_reflns_number_gt                2599
_reflns_number_total             2931
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic400671v_si_002_4.cif
_cod_data_source_block           4
_cod_original_cell_volume        644.1(3)
_cod_database_code               4336135