A titanium(iii) phosphite exhibits polymorph-distinct redox activity involving proton-coupled electron transfer.
Hung, Ling-I; Hsieh, Tsung-Hsiu; Syu, Jhao-Yang; Chen, Pei-Lin; Lin, Chia-Her; Wang, Sue-Lein; Chemical communications (Cambridge, England) 57 (2021) 6542–6545; doi:10.1039/d1cc01190a

data_7128397
_publ_section_title
;
 A titanium(iii) phosphite exhibits polymorph-distinct redox activity
 involving proton-coupled electron transfer.
;
_journal_issue                   53
_journal_name_full
'Chemical communications (Cambridge, England)'
_journal_page_first              6542
_journal_page_last               6545
_journal_paper_doi               10.1039/d1cc01190a
_journal_volume                  57
_journal_year                    2021
_chemical_formula_sum            'H5 O7 P2 Ti'
_chemical_formula_weight         226.88
_chemical_name_systematic        alpha-III
_chemical_properties_physical    Oxygen-sensitive
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2021-02-17 deposited with the CCDC.	2021-05-31 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 100.078(3)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.0662(2)
_cell_length_b                   12.5792(8)
_cell_length_c                   10.2257(6)
_cell_measurement_reflns_used    6002
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      28.40
_cell_measurement_theta_min      2.59
_cell_volume                     641.62(6)
_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      296(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0326
_diffrn_reflns_av_unetI/netI     0.0319
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6002
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         28.404
_diffrn_reflns_theta_min         2.591
_exptl_absorpt_coefficient_mu    1.815
_exptl_absorpt_correction_T_max  0.9485
_exptl_absorpt_correction_T_min  0.8331
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            Blue
_exptl_crystal_density_diffrn    2.349
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Columnar
_exptl_crystal_F_000             452
_exptl_crystal_preparation       'Magnetic properties'
_exptl_crystal_size_max          0.16
_exptl_crystal_size_mid          0.06
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.414
_refine_diff_density_min         -0.401
_refine_diff_density_rms         0.094
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.118
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     128
_refine_ls_number_reflns         1600
_refine_ls_number_restraints     114
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0321
_refine_ls_R_factor_gt           0.0258
_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^)+(0.0334P)^2^+0.3455P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0682
_refine_ls_wR_factor_ref         0.0722
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1408
_reflns_number_total             1600
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d1cc01190a2.cif
_cod_data_source_block           alpha-III
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_exptl_crystal_density_meas' value 'not measured' was
changed to '?' -- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 7556 2019-12-06 15:28:31Z antanas 

 Adding full bibliography for 7128397--7128400.cif.
;
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7128397
_shelxl_version_number           2014/6
_shelx_res_checksum              13138
_shelx_hkl_checksum              63959