Supramolecular networks of picrate derivatives with tunable hydrogen-bonding densities for selective bacterial killing
Sarkar, Sresha; Sultana, Shabnam; Jover, Jesús; Chowdhury, Nilkanta; Bagchi, Angshuman; Das, Chandan; Goswami, Swapnadeep; Chattopadhyay, Dipankar; Roy, Raj Kumar; Saha, Supriyo; Zangrando, Ennio; Sanyal, Ria; New Journal of Chemistry 50 (2026) 2994–3018; doi:10.1039/D5NJ04072H

data_7064269
_publ_section_title
;
 Supramolecular networks of picrate derivatives with tunable
 hydrogen-bonding densities for selective bacterial killing
;
_journal_issue                   7
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2994
_journal_page_last               3018
_journal_paper_doi               10.1039/D5NJ04072H
_journal_volume                  50
_journal_year                    2026
_chemical_formula_moiety         'C6 H2 N3 O7, C7 H10 N O'
_chemical_formula_sum            'C13 H12 N4 O8'
_chemical_formula_weight         352.27
_chemical_melting_point          240
_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   geom
_audit_creation_method           SHELXL-2019/2
_audit_update_record
;
2025-04-01 deposited with the CCDC.	2026-01-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 96.198(6)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   17.3160(11)
_cell_length_b                   4.0020(4)
_cell_length_c                   21.9731(13)
_cell_measurement_reflns_used    4698
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      23.69
_cell_measurement_theta_min      2.98
_cell_volume                     1513.8(2)
_computing_cell_refinement       'SAINT (Bruker, 2020)'
_computing_data_collection       'APEX4 2021.4-0'
_computing_data_reduction        'SAINT (Bruker, 2020)'
_computing_structure_refinement  'SHELXL-2019/2 (Sheldrick, 2019)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015b)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.956
_diffrn_measured_fraction_theta_max 0.956
_diffrn_measurement_device_type  'Bruker D8 QUEST'
_diffrn_measurement_method       'omega and phi scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1001
_diffrn_reflns_av_unetI/netI     0.0855
_diffrn_reflns_Laue_measured_fraction_full 0.956
_diffrn_reflns_Laue_measured_fraction_max 0.956
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -25
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_diffrn_reflns_point_group_measured_fraction_full 0.956
_diffrn_reflns_point_group_measured_fraction_max 0.956
_diffrn_reflns_theta_full        24.696
_diffrn_reflns_theta_max         24.696
_diffrn_reflns_theta_min         2.850
_diffrn_source                   'sealed X-ray tube'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.131
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            'Deep brown'
_exptl_crystal_density_diffrn    1.546
_exptl_crystal_description       block
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_exptl_crystal_recrystallization_method
'Re-crystallisation from solvent: methanol'
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.260
_exptl_crystal_size_min          0.220
_refine_diff_density_max         0.338
_refine_diff_density_min         -0.374
_refine_diff_density_rms         0.088
_refine_ls_extinction_coef       0.036(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2019/2 (Sheldrick 2019)'
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     229
_refine_ls_number_reflns         2477
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.1016
_refine_ls_R_factor_gt           0.0786
_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^)+(0.1424P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2014
_refine_ls_wR_factor_ref         0.2387
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1716
_reflns_number_total             2477
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d5nj04072h2.cif
_cod_data_source_block           shelx_CCDC1
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               7064269
_shelx_shelxl_version_number     2019/2
_shelx_res_checksum              29067