Dual excitation-wavelength-dependent luminescence and proton transfer in ESIPT-active zinc(II) complexes with 2-(1<i>H</i>-pyrazol-1-yl)-4-(2-hydroxyphenyl)pyrimidine.
Shekhovtsov, Nikita A.; Vorobyeva, Sofia N.; Ryadun, Alexey A.; Nikolaenkova, Elena B.; Tikhonov, Alexey Y.; Bushuev, Mark B.; Dalton transactions (Cambridge, England : 2003) 54 (2025) 15157–15168; doi:10.1039/d5dt01688f

data_7719384
_publ_section_title
;
 Dual excitation-wavelength-dependent luminescence and proton transfer in
 ESIPT-active zinc(II) complexes with
 2-(1<i>H</i>-pyrazol-1-yl)-4-(2-hydroxyphenyl)pyrimidine.
;
_journal_issue                   40
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              15157
_journal_page_last               15168
_journal_paper_doi               10.1039/d5dt01688f
_journal_volume                  54
_journal_year                    2025
_chemical_formula_moiety         'C26 H20 Br4 N8 O2 Zn2'
_chemical_formula_sum            'C26 H20 Br4 N8 O2 Zn2'
_chemical_formula_weight         926.88
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2021-10-09
_audit_creation_method
;
Olex2 1.3
(compiled 2020.11.12 svn.r5f609507 for OlexSys, GUI svn.r6408)
;
_audit_update_record
;
2025-06-27 deposited with the CCDC.	2025-09-09 downloaded from the CCDC.
;
_cell_angle_alpha                81.773(3)
_cell_angle_beta                 88.889(3)
_cell_angle_gamma                62.710(3)
_cell_formula_units_Z            1
_cell_length_a                   7.8968(6)
_cell_length_b                   8.4219(6)
_cell_length_c                   12.0927(9)
_cell_measurement_reflns_used    6359
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      31.48
_cell_measurement_theta_min      2.75
_cell_volume                     706.39(9)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX3'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.3 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2014/7 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 PIXEL
_diffrn_detector_area_resol_mean 7.41
_diffrn_detector_type            'Bruker PHOTON III area detector'
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.896
_diffrn_measurement_details
;
Data collection was performed by Dr. V. Komarov in XRD Facility of NIIC SB RAS.
;
_diffrn_measurement_device       'three-circle diffractometer'
_diffrn_measurement_device_type  'Bruker D8 Venture diffractometer'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  'Incoatec HELIOS multilayer mirrors'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0270
_diffrn_reflns_av_unetI/netI     0.0416
_diffrn_reflns_Laue_measured_fraction_full 0.990
_diffrn_reflns_Laue_measured_fraction_max 0.896
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7002
_diffrn_reflns_point_group_measured_fraction_full 0.990
_diffrn_reflns_point_group_measured_fraction_max 0.896
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         31.551
_diffrn_reflns_theta_min         2.753
_diffrn_source                   'Incoatec IuS3.0 microfocus X-ray tube'
_diffrn_source_current           1.4
_diffrn_source_power             0.07
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    7.397
_exptl_absorpt_correction_T_max  0.7462
_exptl_absorpt_correction_T_min  0.6172
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0651 before and 0.0494 after correction.
The Ratio of minimum to maximum transmission is 0.8271.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    2.179
_exptl_crystal_description       prism
_exptl_crystal_F_000             448
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.702
_refine_diff_density_min         -0.447
_refine_diff_density_rms         0.111
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.050
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     191
_refine_ls_number_reflns         4240
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.050
_refine_ls_R_factor_all          0.0357
_refine_ls_R_factor_gt           0.0300
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0160P)^2^+0.7659P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0653
_refine_ls_wR_factor_ref         0.0679
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3733
_reflns_number_total             4240
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5dt01688f2.cif
_cod_data_source_block           gr-27-75_s2_150k
_cod_depositor_comments
'Adding full bibliography for 7719383--7719386.cif.'
_cod_database_code               7719384
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_max   0.709
_shelx_estimated_absorpt_t_min   0.589
_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:
 C10(H10), C13(H13), C11(H11), C12(H12), C5(H5), C1(H1A), C3(H3), C6(H6), C2(H2)
2.b Idealised tetrahedral OH refined as rotating group:
 O1(H1)
;
_shelx_res_checksum              23559
_olex2_submission_special_instructions 'No special instructions were received'