Design and Synthesis of 2-Pyridone Based Flexible Dimers and Their Conformational Study through X-ray Diffraction and Density Functional Theory: Perspective of Cyclooxygenase-2 Inhibition
Rai, Sunil K.; Khanam, Shaziya; Khanna, Ranjana S.; Tewari, Ashish K.; Crystal Growth & Design 15 (2015) 1430–; doi:10.1021/cg501793v

data_4512654
_publ_section_title
;
 Design and Synthesis of 2-Pyridone Based Flexible Dimers and Their
 Conformational Study through X-ray Diffraction and Density Functional
 Theory: Perspective of Cyclooxygenase-2 Inhibition
;
_journal_issue                   3
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              1430
_journal_paper_doi               10.1021/cg501793v
_journal_volume                  15
_journal_year                    2015
_chemical_formula_moiety         'C29 H24 N4 O2'
_chemical_formula_sum            'C29 H24 N4 O2'
_chemical_formula_weight         460.52
_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
;
2014-04-11 # Formatted by publCIF

;
_cell_angle_alpha                90.00
_cell_angle_beta                 102.428(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   15.2675(12)
_cell_length_b                   11.6921(9)
_cell_length_c                   13.8153(10)
_cell_measurement_temperature    293(2)
_cell_volume                     2408.4(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 25.24
_diffrn_measured_fraction_theta_max 25.24
_diffrn_measurement_device_type  'Xcalibur, Eos'
_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  0.0200
_diffrn_reflns_av_sigmaI/netI    0.0360
_diffrn_reflns_limit_h_max       19
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            11038
_diffrn_reflns_theta_full        29.11
_diffrn_reflns_theta_max         29.11
_diffrn_reflns_theta_min         3.02
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.21548
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrysAlisPro, Agilent Technologies'
_exptl_crystal_density_diffrn    1.270
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             968.0
_exptl_crystal_size_max          0.52
_exptl_crystal_size_mid          0.51
_exptl_crystal_size_min          0.50
_refine_diff_density_max         0.333
_refine_diff_density_min         -0.242
_refine_diff_density_rms         0.038
_refine_ls_extinction_coef       0.0058(10)
_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   1.017
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     317
_refine_ls_number_reflns         5460
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.0819
_refine_ls_R_factor_gt           0.0529
_refine_ls_shift/su_max          0.016
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0745P)^2^+0.4658P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1365
_refine_ls_wR_factor_ref         0.1547
_reflns_number_gt                3782
_reflns_number_total             5460
_reflns_threshold_expression     >2sigma(I)
_publcif_datablock.id            {5991f882-a189-4498-8037-021f68183c45}
_publcif_info_exptl_table_max_cols 4
_publcif_info_exptl_table_use_headnotes n
_cod_data_source_file            cg501793v_si_003.cif
_cod_data_source_block           shelxl
_cod_depositor_comments
'Adding full bibliography for 4512653--4512655.cif.'
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4512654