Structures, photoresponse properties and DNA binding abilities of 4-(4-pyridinyl)-2-pyridone salts
Mandal, Tripti; Dey, Arka; Pathak, Sudipta; Islam, Md. Maidul; Konar, Saugata; Ortega-Castro, Joaquín; Seth, Saikat Kumar; Ray, Partha Pratim; Frontera, Antonio; Mukhopadhyay, Subrata; RSC Advances 9 (2019) 9663–; doi:10.1039/C9RA00666D

data_7232544
_publ_section_title
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 Structures, photoresponse properties and DNA binding abilities of
 4-(4-pyridinyl)-2-pyridone salts
;
_journal_issue                   17
_journal_name_full               'RSC Advances'
_journal_page_first              9663
_journal_paper_doi               10.1039/C9RA00666D
_journal_volume                  9
_journal_year                    2019
_chemical_formula_sum            'C14 H16 Cl N5 O8'
_chemical_formula_weight         417.77
_chemical_name_systematic
;
 ?
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2018-07-22 deposited with the CCDC.    2019-03-20 downloaded from the CCDC.
;
_cell_angle_alpha                90.000(5)
_cell_angle_beta                 104.910(5)
_cell_angle_gamma                90.000(5)
_cell_formula_units_Z            4
_cell_length_a                   12.646(5)
_cell_length_b                   12.620(5)
_cell_length_c                   11.356(5)
_cell_measurement_reflns_used    1730
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      1.5
_cell_volume                     1751.3(12)
_computing_cell_refinement       'APEX2(Bruker,2007)and SAINT (Bruker,2007)'
_computing_data_collection       'APEX2 (Bruker, 2007)'
_computing_data_reduction        'SAINT(Bruker,2007)and XPREP(Bruker,2007)'
_computing_molecular_graphics
;    
ORTEP-3 for Windows (Farrugia, 1997), DIAMOND (Brandenburg,
1999) and Mercury (Macrae <i>et al.</i>, 2006)
;
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.980
_diffrn_measured_fraction_theta_max 0.980
_diffrn_measurement_device_type  'Bruker SMART APEX II CCD area-detector'
_diffrn_measurement_method       '\w and \f'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0321
_diffrn_reflns_av_sigmaI/netI    0.0198
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            23893
_diffrn_reflns_theta_full        24.77
_diffrn_reflns_theta_max         24.77
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    0.276
_exptl_absorpt_correction_T_max  0.98
_exptl_absorpt_correction_T_min  0.96
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            pale-yellow
_exptl_crystal_density_diffrn    1.584
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             864
_exptl_crystal_size_max          0.17
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.443
_refine_diff_density_min         -0.320
_refine_diff_density_rms         0.043
_refine_ls_extinction_coef       0.025(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.035
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         2940
_refine_ls_number_restraints     480
_refine_ls_restrained_S_all      1.012
_refine_ls_R_factor_all          0.0467
_refine_ls_R_factor_gt           0.0406
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0627P)^2^+0.8450P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1098
_refine_ls_wR_factor_ref         0.1148
_reflns_number_gt                2559
_reflns_number_total             2940
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c9ra00666d2.cif
_cod_data_source_block           hclo4-revised
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7232544