Crystal structure of 2-amino-4-(3,4,5-trimethoxy-phenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile, C19H18N2O6
He, Jing; Zeitschrift für Kristallographie - New Crystal Structures 233 (2018) 757–758; doi:10.1515/ncrs-2017-0316

data_8106286
_publ_section_title
;
 Crystal structure of
 2-amino-4-(3,4,5-trimethoxy-phenyl)-7-methyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-3-carbonitrile,
 C19H18N2O6
;
_journal_issue                   5
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              757
_journal_page_last               758
_journal_paper_doi               10.1515/ncrs-2017-0316
_journal_volume                  233
_journal_year                    2018
_chemical_formula_moiety         'C19 H18 N2 O6'
_chemical_formula_sum            'C19 H18 N2 O6'
_chemical_formula_weight         370.35
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_cell_angle_alpha                90
_cell_angle_beta                 114.446(11)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.052(8)
_cell_length_b                   10.091(6)
_cell_length_c                   14.454(9)
_cell_measurement_reflns_used    1671
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.46
_cell_measurement_theta_min      2.54
_cell_volume                     1733.0(18)
_computing_cell_refinement       'SAINT v7.60A (Bruker, 2009)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2008)'
_computing_data_reduction        'SAINT v7.60A (Bruker, 2009)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296.15
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0462
_diffrn_reflns_av_unetI/netI     0.0534
_diffrn_reflns_Laue_measured_fraction_full 0.997
_diffrn_reflns_Laue_measured_fraction_max 0.997
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -13
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            8487
_diffrn_reflns_point_group_measured_fraction_full 0.997
_diffrn_reflns_point_group_measured_fraction_max 0.997
_diffrn_reflns_theta_full        24.996
_diffrn_reflns_theta_max         24.996
_diffrn_reflns_theta_min         1.714
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.107
_exptl_absorpt_correction_T_max  0.9841
_exptl_absorpt_correction_T_min  0.9727
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.419
_exptl_crystal_density_meas      .
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.26
_exptl_crystal_size_mid          0.21
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.343
_refine_diff_density_min         -0.277
_refine_diff_density_rms         0.044
_refine_ls_extinction_coef       0.009(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.107
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     245
_refine_ls_number_reflns         3041
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.107
_refine_ls_R_factor_all          0.0746
_refine_ls_R_factor_gt           0.0490
_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^)+(0.0779P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1384
_refine_ls_wR_factor_ref         0.1518
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2083
_reflns_number_total             3041
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            suppl_ncrs-2017-0316_suppl.cif
_cod_data_source_block           a
_cod_original_cell_volume        1733.0(19)
_cod_database_code               8106286
_shelx_estimated_absorpt_t_max   0.984
_shelx_estimated_absorpt_t_min   0.973
_olex2_refinement_description
;
1. Fixed Uiso
 At 1.2 times of:
  All C(H) groups, All N(H,H) groups
 At 1.5 times of:
  All C(H,H,H) groups
2.a Ternary CH refined with riding coordinates:
 C19(H19)
2.b Me refined with riding coordinates:
 C1(H1A,H1B,H1C), C4(H4A,H4B,H4C), C6(H6A,H6B,H6C), C18(H18A,H18B,H18C)
2.c Aromatic/amide H refined with riding coordinates:
 C7(H7), C9(H9), C16(H16)
2.d X=CH2 refined with riding coordinates:
 N2(H2A,H2B)
;
_olex2_submission_special_instructions 'No special instructions were received'
_publcif_funding_html
;
;