A discussion on the solid state organization of 4-pyridyl imino compounds and on the co-crystallization between their molecular precursors
Bacchi, Alessia; Carcelli, Mauro; Chiodo, Tiziana; Cantoni, Giulia; De Filippo, Cecilia; Pipolo, Silvio; CrystEngComm 11 (2009) 1433–; doi:10.1039/b821909e

data_7200786
_publ_section_title
;
 A discussion on the solid state organization of 4-pyridyl imino
 compounds and on the co-crystallization between their molecular
 precursors
;
_journal_issue                   7
_journal_name_full               CrystEngComm
_journal_page_first              1433
_journal_paper_doi               10.1039/b821909e
_journal_volume                  11
_journal_year                    2009
_chemical_formula_sum            'C24 H18 N2 O'
_chemical_formula_weight         350.40
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 109.52(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.452(5)
_cell_length_b                   18.073(13)
_cell_length_c                   16.549(11)
_cell_measurement_reflns_used    800
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      18
_cell_measurement_theta_min      4
_cell_volume                     1819(2)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 8.2
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'SMART diffractometer'
_diffrn_measurement_method       '\w scan'
_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  0.0236
_diffrn_reflns_av_sigmaI/netI    0.0135
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            15389
_diffrn_reflns_theta_full        23.29
_diffrn_reflns_theta_max         23.29
_diffrn_reflns_theta_min         1.72
_exptl_absorpt_coefficient_mu    0.079
_exptl_absorpt_correction_T_max  1.0
_exptl_absorpt_correction_T_min  0.763395
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS procedure'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.280
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             736
_exptl_crystal_size_max          0.23
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.09
_refine_diff_density_max         0.786
_refine_diff_density_min         -0.367
_refine_diff_density_rms         0.043
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.091
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         2623
_refine_ls_number_restraints     70
_refine_ls_restrained_S_all      1.088
_refine_ls_R_factor_all          0.0698
_refine_ls_R_factor_gt           0.0581
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0701P)^2^+1.3650P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1551
_refine_ls_wR_factor_ref         0.1648
_reflns_number_gt                2116
_reflns_number_total             2623
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b821909e.txt
_cod_data_source_block           3
_cod_original_sg_symbol_H-M      p21/c
_cod_database_code               7200786