Mixed-Valence Cobalt(II/III) Metal-Organic Framework for Ammonia Sensing with Naked-Eye Color Switching.
Zhang, Jindan; Ouyang, Jun; Ye, Yingxiang; Li, Ziyin; Lin, Quanjie; Chen, Ting; Zhang, Zhangjing; Xiang, Shengchang; ACS applied materials & interfaces 10 (2018) 27465–27471; doi:10.1021/acsami.8b07770

data_4515312
_publ_section_title
;
 Mixed-Valence Cobalt(II/III) Metal-Organic Framework for Ammonia Sensing
 with Naked-Eye Color Switching.
;
_journal_issue                   32
_journal_name_full               'ACS applied materials &amp; interfaces'
_journal_page_first              27465
_journal_page_last               27471
_journal_paper_doi               10.1021/acsami.8b07770
_journal_volume                  10
_journal_year                    2018
_chemical_formula_moiety         '0.5(C42 H24 Co2 N26), 6(H O0.5)'
_chemical_formula_sum            'C21 H18 Co N13 O3'
_chemical_formula_weight         559.41
_space_group_crystal_system      hexagonal
_space_group_IT_number           194
_space_group_name_Hall           '-P 6c 2c'
_space_group_name_H-M_alt        'P 63/m m c'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   16.302(4)
_cell_length_b                   16.302(4)
_cell_length_c                   7.5069(14)
_cell_measurement_reflns_used    599
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      72.0360
_cell_measurement_theta_min      5.3920
_cell_volume                     1727.7(7)
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.979
_diffrn_measurement_device_type  'SuperNova, Dual, Cu at zero, Atlas'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.1585
_diffrn_reflns_av_unetI/netI     0.1059
_diffrn_reflns_Laue_measured_fraction_full 0.990
_diffrn_reflns_Laue_measured_fraction_max 0.979
_diffrn_reflns_number            688
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.979
_diffrn_reflns_theta_full        67.684
_diffrn_reflns_theta_max         73.505
_diffrn_reflns_theta_min         5.427
_exptl_absorpt_coefficient_mu    4.221
_exptl_crystal_density_diffrn    1.075
_exptl_crystal_description       flake
_exptl_crystal_F_000             572
_refine_diff_density_max         0.761
_refine_diff_density_min         -0.917
_refine_diff_density_rms         0.107
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.986
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     51
_refine_ls_number_reflns         688
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.986
_refine_ls_R_factor_all          0.1078
_refine_ls_R_factor_gt           0.0816
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.1739P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2346
_refine_ls_wR_factor_ref         0.2630
_reflns_Friedel_coverage         0.000
_reflns_number_gt                458
_reflns_number_total             688
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            am8b07770_si_002.cif
_cod_data_source_block           FJU-56a-H2O
_cod_original_cell_volume        1727.7(9)
_cod_database_code               4515312
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All O(H) groups
2. Others
 Fixed Sof: C4(0.5) H4(0.5) C3(0.5) H3(0.5)
3.a Riding coordinates:
 C4(H4), C3(H3), O1(H1)
;
_shelx_res_checksum              76716
_shelx_hkl_checksum              93501
_shelx_fab_checksum              39452
_shelx_shelxl_version_number     2014/7