Synthesis, Structure, Catalytic, and Bio Activity of Some Metal Complexes and Coordination Polymer Featuring Imidazo[1,5-a]pyridine and Chromen[4,3-b]pyrrole-4-one
Rayasingh, Amlan Ranjan; Manivannan, Vadivelu; New Journal of Chemistry  (2026) –; doi:10.1039/D6NJ00431H

data_7064348
_publ_section_title
;
 Synthesis, structure, and catalytic- and bio-activity of some metal
 complexes and a coordination polymer featuring imidazo[1,5-a]pyridine and
 chromen[4,3-b]pyrrole-4-one
;
_journal_issue                   16
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              6746
_journal_page_last               6760
_journal_paper_doi               10.1039/D6NJ00431H
_journal_volume                  50
_journal_year                    2026
_chemical_formula_moiety         'C32 H18 Cu N4 O4'
_chemical_formula_sum            'C32 H18 Cu N4 O4'
_chemical_formula_weight         586.04
_chemical_name_systematic        75A7Cu
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     dual
_audit_creation_date             2025-12-10
_audit_creation_method
;
Olex2 1.5
(compiled 2025.05.22 svn.r631f81ec for OlexSys, GUI svn.r7248)
;
_audit_update_record
;
2026-01-26 deposited with the CCDC.	2026-03-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 118.054(19)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   18.832(3)
_cell_length_b                   8.2583(9)
_cell_length_c                   18.462(3)
_cell_measurement_reflns_used    1101
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      22.0340
_cell_measurement_theta_min      2.5440
_cell_volume                     2533.9(8)
_computing_cell_refinement       'CrysAlisPro 1.171.40.23a (Rigaku OD, 2018)'
_computing_data_collection       'CrysAlisPro 1.171.40.23a (Rigaku OD, 2018)'
_computing_data_reduction        'CrysAlisPro 1.171.40.23a (Rigaku OD, 2018)'
_computing_molecular_graphics    'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 1.5 (Dolomanov et al., 2009)'
_computing_structure_refinement  'SHELXL 2018/3 (Sheldrick, 2015)'
_computing_structure_solution    'SHELXT 2018/2 (Sheldrick, 2018)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector                 'CCD plate'
_diffrn_detector_area_resol_mean 16.2760
_diffrn_detector_type            Eos
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_details
;
List of Runs (angles in degrees, time in seconds):

  # Type    Start    End  Width  t~exp~   \w     \q     \k     \f   Frames
  1  \w    -66.00 -35.00   1.00   25.07    --  -17.48-178.00-180.00   31
  2  \w    -35.00  41.00   1.00   25.07    --   20.61 -57.00   0.00   76
  3  \w     -1.00  93.00   1.00   25.07    --   20.61  38.00-180.00   94
  4  \w     69.00  97.00   1.00   25.07    --   20.61 178.00-150.00   28
;
_diffrn_measurement_device       'four-circle diffractometer'
_diffrn_measurement_device_type  'SuperNova, Single source at offset/far, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_measurement_specimen_support 'Mitegen 50um'
_diffrn_orient_matrix_type
'CrysAlisPro convention (1999,Acta A55,543-557)'
_diffrn_orient_matrix_UB_11      -0.0257021000
_diffrn_orient_matrix_UB_12      -0.0297514000
_diffrn_orient_matrix_UB_13      0.0153421000
_diffrn_orient_matrix_UB_21      -0.0256723000
_diffrn_orient_matrix_UB_22      0.0678097000
_diffrn_orient_matrix_UB_23      -0.0169563000
_diffrn_orient_matrix_UB_31      -0.0224159000
_diffrn_orient_matrix_UB_32      -0.0435462000
_diffrn_orient_matrix_UB_33      -0.0369793000
_diffrn_radiation_collimation    0.3
_diffrn_radiation_monochromator  mirror
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1057
_diffrn_reflns_av_unetI/netI     0.2104
_diffrn_reflns_Laue_measured_fraction_full 0.978
_diffrn_reflns_Laue_measured_fraction_max 0.978
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -22
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       21
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            8541
_diffrn_reflns_point_group_measured_fraction_full 0.978
_diffrn_reflns_point_group_measured_fraction_max 0.978
_diffrn_reflns_theta_full        24.999
_diffrn_reflns_theta_max         24.999
_diffrn_reflns_theta_min         2.207
_diffrn_source                   'micro-focus sealed X-ray tube'
_diffrn_source_current           24.0
_diffrn_source_power             1.2
_diffrn_source_target            Mo
_diffrn_source_type              'SuperNova (Mo) X-ray Source'
_diffrn_source_voltage           50.0
_exptl_absorpt_coefficient_mu    0.910
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.10667
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.40.23a (Rigaku Oxford Diffraction, 2018)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'metallic dark blue'
_exptl_crystal_colour_lustre     metallic
_exptl_crystal_colour_modifier   dark
_exptl_crystal_colour_primary    blue
_exptl_crystal_density_diffrn    1.536
_exptl_crystal_description       block
_exptl_crystal_F_000             1196
_exptl_crystal_size_max          0.08
_exptl_crystal_size_mid          0.075
_exptl_crystal_size_min          0.065
_refine_diff_density_max         0.959
_refine_diff_density_min         -1.030
_refine_diff_density_rms         0.107
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.983
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     370
_refine_ls_number_reflns         4349
_refine_ls_number_restraints     288
_refine_ls_restrained_S_all      0.953
_refine_ls_R_factor_all          0.1845
_refine_ls_R_factor_gt           0.0887
_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^)+(0.0607P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1615
_refine_ls_wR_factor_ref         0.2158
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2001
_reflns_number_total             4349
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d6nj00431h2.cif
_cod_data_source_block           2d
_cod_depositor_comments
'Adding full bibliography for 7064343--7064354.cif.'
_cod_original_cell_volume        2533.9(7)
_cod_database_code               7064348
_shelx_shelxl_version_number     2018/3
_chemical_oxdiff_formula         CHNOCu
_chemical_oxdiff_usercomment     Mo
_shelx_estimated_absorpt_t_max   0.943
_shelx_estimated_absorpt_t_min   0.931
_diffrn_oxdiff_ac4_digest_frames
;
01bccc641bd3ed6d5fe5ffacca8b9432940002798e6
;
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups
2. Uiso/Uaniso restraints and constraints
All non-hydrogen atoms have similar U: within 2A with sigma of 0.04 and sigma
for terminal atoms of 0.08 within 2A
3.a Aromatic/amide H refined with riding coordinates:
 C1(H1), C2(H2), C3(H3), C4(H4), C7(H7), C13(H13), C14(H14), C15(H15),
 C16(H16), C17(H17), C18(H18), C19(H19), C20(H20), C23(H23), C27(H27), C28(H28),
  C29(H29), C30(H30)
;
_shelx_res_checksum              18617
_olex2_submission_special_instructions 'No special instructions were received'
_oxdiff_exptl_absorpt_empirical_details
;
Empirical correction (ABSPACK) includes:
- Absorption correction using spherical harmonics
- Frame scaling
;
_oxdiff_exptl_absorpt_empirical_full_max 3.502
_oxdiff_exptl_absorpt_empirical_full_min 0.220