A new class of thermo- and solvatochromic metal-organic frameworks based on 4-(pyridin-4-yl)benzoic acid.
Mehlana, Gift; Bourne, Susan A.; Ramon, Gaëlle; Dalton transactions (Cambridge, England : 2003) 41 (2012) 4224–4231; doi:10.1039/c2dt12016j

data_7018477
_publ_section_title
;
 A new class of thermo- and solvatochromic metal-organic frameworks based
 on 4-(pyridin-4-yl)benzoic acid.
;
_journal_issue                   14
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4224
_journal_page_last               4231
_journal_paper_doi               10.1039/c2dt12016j
_journal_volume                  41
_journal_year                    2012
_chemical_formula_sum            'C106.25 H96.75 Co4 N11.25 O23.75'
_chemical_formula_weight         2146.92
_chemical_name_systematic
;
?
;
_space_group_IT_number           79
_symmetry_cell_setting           tetragonal
_symmetry_space_group_name_Hall  'I 4'
_symmetry_space_group_name_H-M   'I 4'
_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                90.00
_cell_formula_units_Z            8
_cell_length_a                   31.9819(12)
_cell_length_b                   31.9819(12)
_cell_length_c                   25.3323(11)
_cell_measurement_reflns_used    47724
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      27.34
_cell_measurement_theta_min      1.64
_cell_volume                     25910.9(18)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.984
_diffrn_measured_fraction_theta_max 0.984
_diffrn_measurement_device_type  diffractometer
_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  0.0455
_diffrn_reflns_av_sigmaI/netI    0.0729
_diffrn_reflns_limit_h_max       41
_diffrn_reflns_limit_h_min       -41
_diffrn_reflns_limit_k_max       24
_diffrn_reflns_limit_k_min       -31
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -32
_diffrn_reflns_number            47723
_diffrn_reflns_theta_full        27.34
_diffrn_reflns_theta_max         27.34
_diffrn_reflns_theta_min         1.64
_exptl_absorpt_coefficient_mu    0.565
_exptl_absorpt_correction_T_max  0.8716
_exptl_absorpt_correction_T_min  0.8669
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    1.101
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             8888
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.756
_refine_diff_density_min         -1.013
_refine_diff_density_rms         0.103
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.49(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     1319
_refine_ls_number_reflns         21373
_refine_ls_number_restraints     31
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.1514
_refine_ls_R_factor_gt           0.0764
_refine_ls_shift/su_max          0.158
_refine_ls_shift/su_mean         0.077
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1649P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2142
_refine_ls_wR_factor_ref         0.2718
_reflns_number_gt                11369
_reflns_number_total             21373
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2dt12016j.txt
_cod_data_source_block           2
_cod_original_sg_symbol_H-M      I4
_cod_database_code               7018477