Unusual Chemical Ratio, Z″ Values, and Polymorphism in Three NewN-Methyl Aminopyridine–4-Nitrophenol Adducts
Draguta, Sergiu; Yakovenko, Andrey A.; Fonari, Marina S.; Timofeeva, Tatiana V.; Crystal Growth & Design 14 (2014) 3423–; doi:10.1021/cg500360f

data_4511210
_publ_section_title
;
 Unusual Chemical Ratio, Z&#x2033; Values, and Polymorphism in Three
 NewN-Methyl Aminopyridine--4-Nitrophenol Adducts
;
_journal_issue                   7
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3423
_journal_paper_doi               10.1021/cg500360f
_journal_volume                  14
_journal_year                    2014
_chemical_formula_moiety         'C6 H5 N O3, C6 H4 N O3, C6 H9 N2 '
_chemical_formula_sum            'C18 H18 N4 O6'
_chemical_formula_weight         386.36
_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                 98.587(8)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   19.836(10)
_cell_length_b                   7.193(4)
_cell_length_c                   12.924(6)
_cell_measurement_reflns_used    2071
_cell_measurement_temperature    273(2)
_cell_measurement_theta_max      24.93
_cell_measurement_theta_min      3.11
_cell_volume                     1823.3(16)
_computing_cell_refinement       'SAINTPlus, v. 6.2 (Bruker, 2001)'
_computing_data_collection       'APEX2 (Bruker, 2005)'
_computing_data_reduction        'SAINTPlus, v. 6.2 (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 2008)'
_computing_structure_solution    'SHELXTL (Sheldrick, 2008)'
_diffrn_ambient_temperature      273(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_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  0.0659
_diffrn_reflns_av_sigmaI/netI    0.0482
_diffrn_reflns_limit_h_max       24
_diffrn_reflns_limit_h_min       -24
_diffrn_reflns_limit_k_max       8
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            16851
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.08
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.408
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             808
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.276
_refine_diff_density_min         -0.281
_refine_diff_density_rms         0.048
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.066
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     266
_refine_ls_number_reflns         3568
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.066
_refine_ls_R_factor_all          0.0738
_refine_ls_R_factor_gt           0.0450
_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^)+(0.0574P)^2^+0.0153P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1035
_refine_ls_wR_factor_ref         0.1179
_reflns_number_gt                2518
_reflns_number_total             3568
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            all_compounds_completed_corrected.cif
_cod_data_source_block           1.2(I)
_cod_depositor_comments
'Adding full bibliography for 4511210--4511217.cif.'
_cod_original_cell_volume        1823.2(15)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               4511210