Crystal structure of (3<i>E</i>)-3-{(2<i>E</i>)-3-[4-(dimethylamino)phenyl]prop-2-enylidene}-3,4-dihydro-2<i>H</i>-chromen-4-one
Biruntha, K.; Reuben Jonathan, D.; Mohamooda Sumaya, U.; Dravida Thendral, E. R. A.; Usha, G.; IUCrData 3 (2018) x181273–; doi:10.1107/S2414314618012737

data_1549950
_publ_section_title
;
 Crystal structure of
 (3<i>E</i>)-3-{(2<i>E</i>)-3-[4-(dimethylamino)phenyl]prop-2-enylidene}-3,4-dihydro-2<i>H</i>-chromen-4-one
;
_journal_coeditor_code           BV4020
_journal_issue                   9
_journal_name_full               IUCrData
_journal_page_first              x181273
_journal_paper_doi               10.1107/S2414314618012737
_journal_volume                  3
_journal_year                    2018
_chemical_formula_moiety         'C20 H19 N O2'
_chemical_formula_sum            'C20 H19 N O2'
_chemical_formula_weight         305.36
_chemical_name_systematic
(3<i>E</i>)-3-{(2<i>E</i>)-3-[4-(Dimethylamino)phenyl]prop-2-enylidene}-3,4-dihydro-2<i>H</i>-chromen-4-one
_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'
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 98.859(2)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   9.3620(4)
_cell_length_b                   11.6073(5)
_cell_length_c                   15.0732(7)
_cell_measurement_reflns_used    5210
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      26.38
_cell_measurement_theta_min      3.24
_cell_volume                     1618.43(12)
_computing_cell_refinement
;
APEX3 and SAINT (Bruker, 2016)
;
_computing_data_collection
;
APEX3 (Bruker, 2016)
;
_computing_data_reduction
;
SAINT and XPREP (Bruker, 2016)
;
_computing_molecular_graphics
;
ORTEP-3 for Windows (Farrugia, 2012)
;
_computing_publication_material
;
<i>SHELXL2014/7</i> (Sheldrick, 2015b)
;
_computing_structure_refinement
;
<i>SHELXL2014/7</i> (Sheldrick, 2015b)
;
_computing_structure_solution
;
<i>SHELXT2014/5</i> (Sheldrick, 2015a)
;
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.981
_diffrn_measured_fraction_theta_max 0.983
_diffrn_measurement_device_type  'Bruker Kappa APEX3 CMOS'
_diffrn_measurement_method       '\w and \f scan'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0369
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12086
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.379
_diffrn_reflns_theta_min         3.683
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  0.988
_exptl_absorpt_correction_T_min  0.984
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
(SADABS; Bruker, 2016)
;
_exptl_crystal_colour            red
_exptl_crystal_density_diffrn    1.253
_exptl_crystal_description       block
_exptl_crystal_F_000             648
_exptl_crystal_size_max          0.200
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.150
_refine_diff_density_max         0.159
_refine_diff_density_min         -0.143
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.051
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     210
_refine_ls_number_reflns         3275
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.051
_refine_ls_R_factor_all          0.0626
_refine_ls_R_factor_gt           0.0444
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0692P)^2^+0.2609P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1196
_refine_ls_wR_factor_ref         0.1333
_reflns_number_gt                2487
_reflns_number_total             3331
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            bv4020sup1.cif
_cod_data_source_block           I
_cod_database_code               1549950
_cod_database_fobs_code          1549950
_shelx_estimated_absorpt_t_min   0.984
_shelx_estimated_absorpt_t_max   0.988
_shelx_hkl_checksum              93134
_shelx_res_checksum              66450