Highly Selective CO2 Uptake in Uninodal 6-Connected "mmo" Nets Based upon MO42- (M = Cr, Mo) Pillars
Mona H. Mohamed; Sameh K. Elsaidi; Lukasz Wojtas; Tony Pham; Katherine A. Forrest; Brant Tudor; Brian Space; Michael J. Zaworotko; Journal of the American Chemical Society 134 (2012) 19556–19559; doi:10.1021/ja309452y

data_4118953
_publ_section_title
;
 Highly Selective CO2 Uptake in Uninodal 6-Connected "mmo" Nets Based upon
 MO42- (M = Cr, Mo) Pillars
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              19556
_journal_page_last               19559
_journal_paper_doi               10.1021/ja309452y
_journal_volume                  134
_journal_year                    2012
_chemical_formula_sum            'C24 H20 Cr N4 Ni O9.17'
_chemical_formula_weight         621.82
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           155
_symmetry_cell_setting           trigonal
_symmetry_space_group_name_Hall  'R 3 2"'
_symmetry_space_group_name_H-M   'R 3 2 :H'
_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                120.00
_cell_formula_units_Z            9
_cell_length_a                   21.1759(3)
_cell_length_b                   21.1759(3)
_cell_length_c                   17.4734(3)
_cell_measurement_temperature    228(2)
_cell_volume                     6785.66(18)
_computing_cell_refinement       'APEX2 (Bruker, 2010); SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2010)'
_computing_data_reduction        'SAINT (Bruker, 2009);XPREP(Sheldrick,2008)'
_computing_publication_material  'APEX2 (Bruker, 2010)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008); OLEX2 (2009)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      228(2)
_diffrn_measured_fraction_theta_full 0.983
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'BRUKER SMART APEXII CCD'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0418
_diffrn_reflns_av_sigmaI/netI    0.0477
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -20
_diffrn_reflns_number            12389
_diffrn_reflns_theta_full        68.12
_diffrn_reflns_theta_max         68.12
_diffrn_reflns_theta_min         3.49
_exptl_absorpt_coefficient_mu    4.206
_exptl_absorpt_correction_T_max  0.6785
_exptl_absorpt_correction_T_min  0.5711
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS; (Sheldrick, 2003)'
_exptl_crystal_colour            green
_exptl_crystal_density_diffrn    1.370
_exptl_crystal_description       block
_exptl_crystal_F_000             2856
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.497
_refine_diff_density_min         -0.251
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.016(7)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.083
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     208
_refine_ls_number_reflns         2698
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.083
_refine_ls_R_factor_all          0.0348
_refine_ls_R_factor_gt           0.0327
_refine_ls_shift/su_max          0.003
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0484P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0883
_refine_ls_wR_factor_ref         0.0891
_reflns_number_gt                2533
_reflns_number_total             2698
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja309452y_si_003.cif
_cod_data_source_block           CROFOUR-1-Ni
_cod_original_cell_volume        6785.65(18)
_cod_original_sg_symbol_H-M      'R 3 2'
_cod_database_code               4118953