The chitosan confined pyrolysis strategy enhances the catalytic performance of a carbon material based on a novel carboxyl functionalized MOF.
Wang, Dongsheng; He, Tingyu; Fan, Mingyue; Li, Tuotuo; Qi, Haina; Lin, Zihan; Hu, Xiaoli; Su, Zhongmin; Dalton transactions (Cambridge, England : 2003) 54 (2025) 5250–5254; doi:10.1039/d5dt00074b

data_7718291
_publ_section_title
;
 The chitosan confined pyrolysis strategy enhances the catalytic
 performance of a carbon material based on a novel carboxyl functionalized
 MOF.
;
_journal_issue                   13
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              5250
_journal_page_last               5254
_journal_paper_doi               10.1039/d5dt00074b
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C27 H16 Co N4 O6'
_chemical_formula_sum            'C27 H16 Co N4 O6'
_chemical_formula_weight         551.37
_space_group_crystal_system      trigonal
_space_group_IT_number           148
_space_group_name_Hall           '-R 3'
_space_group_name_H-M_alt        'R -3 :H'
_atom_sites_solution_hydrogens   geom
_audit_creation_date             2020-10-30
_audit_creation_method
;
Olex2 1.2-beta
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2021-08-10 deposited with the CCDC.	2025-02-25 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            18
_cell_length_a                   26.746(16)
_cell_length_b                   26.746(16)
_cell_length_c                   20.833(12)
_cell_measurement_reflns_used    4885
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      23.8963
_cell_measurement_theta_min      2.5236
_cell_volume                     12906(13)
_computing_cell_refinement       'SAINT+ Ver. 2016.5-0 (Bruker-AXS, 2016)'
_computing_data_collection       'APEX3 Ver. 2016.5-0 (Bruker-AXS, 2016)'
_computing_data_reduction        'SAINT+ Ver. 2016.5-0 (Bruker-AXS, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'XT (Sheldrick, 2015a)'
_diffrn_ambient_temperature      296.15
_diffrn_detector                 'charge-coupled device (CCD) area detector'
_diffrn_detector_area_resol_mean 7.9
_diffrn_detector_type            'Bruker APEX II'
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker APEX II Quazar'
_diffrn_measurement_method       '0.5\% \w and 0.5\% \f scans'
_diffrn_radiation_collimation    'focusing mirrors'
_diffrn_radiation_detector       'Bruker APEX II'
_diffrn_radiation_monochromator  'mirror optics'
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0447
_diffrn_reflns_av_unetI/netI     0.0366
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.996
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       31
_diffrn_reflns_limit_k_min       -25
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            24753
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.996
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         25.000
_diffrn_reflns_theta_min         2.012
_diffrn_source                   'microfocus sealed X-ray tube'
_diffrn_source_type              'Incoatec I\ms'
_exptl_absorpt_coefficient_mu    0.642
_exptl_absorpt_correction_T_max  0.87
_exptl_absorpt_correction_T_min  0.86
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'SADABS-2016/2 (Krause et al., 2015) was used for absorption correction.'
_exptl_crystal_colour            orange
_exptl_crystal_colour_primary    orange
_exptl_crystal_density_diffrn    1.277
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             5058
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.289
_refine_diff_density_min         -0.225
_refine_diff_density_rms         0.047
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     344
_refine_ls_number_reflns         5043
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.045
_refine_ls_R_factor_all          0.0413
_refine_ls_R_factor_gt           0.0307
_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^)+(0.0397P)^2^+5.1543P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0767
_refine_ls_wR_factor_ref         0.0816
_reflns_Friedel_coverage         0.000
_reflns_number_gt                4082
_reflns_number_total             5043
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt00074b2.cif
_cod_data_source_block           2_sq
_cod_depositor_comments          'Adding full bibliography for 7718291.cif.'
_cod_original_cell_volume        12906(17)
_cod_original_sg_symbol_H-M      'R -3'
_cod_database_code               7718291
_shelx_shelxl_version_number     2017/1
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
 At 1.5 times of:
  All O(H) groups
2.a Aromatic/amide H refined with riding coordinates:
 C2(H2), C9(H9), C10(H10), C13(H13), C15(H15), C16(H16), C17(H17), C18(H18),
 C19(H19), C21(H21), C22(H22), C23(H23), C24(H24), C25(H25), C27(H27)
2.b Idealised tetrahedral OH refined as rotating group:
 O5(H5)
;
_shelx_res_checksum              76636
_shelx_hkl_checksum              18158
_shelx_fab_checksum              2448
_olex2_submission_special_instructions 'No special instructions were received'