Crystal structure of 1-((2R,3S)-2,3-dimethyl-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)-2-phenoxyethan-1-one, C18H19NO3
Fu, Ying; Wang, Yun-Kai; Yang, Fei; Ye, Fei; Zeitschrift für Kristallographie - New Crystal Structures 231 (2016) 389–391; doi:10.1515/ncrs-2014-9124

data_8106883
_publ_section_title
;
 Crystal structure of
 1-((2R,3S)-2,3-dimethyl-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)-2-phenoxyethan-1-one,
 C18H19NO3
;
_journal_issue                   2
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              389
_journal_page_last               391
_journal_paper_doi               10.1515/ncrs-2014-9124
_journal_volume                  231
_journal_year                    2016
_chemical_formula_moiety
;
 'C11 H9 Cl4 N O2'  
;
_chemical_formula_sum            'C18 H19 N O3'
_chemical_formula_weight         297.34
_space_group_crystal_system      triclinic
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                97.00(3)
_cell_angle_beta                 105.63(3)
_cell_angle_gamma                99.16(3)
_cell_formula_units_Z            2
_cell_length_a                   7.9928(16)
_cell_length_b                   8.7582(18)
_cell_length_c                   11.692(2)
_cell_measurement_reflns_used    6265
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.56
_cell_measurement_theta_min      3.23
_cell_volume                     766.4(3)
_computing_cell_refinement       'RAPID-AUTO (Rigaku 1998 <i>RAPID-AUTO</i>)'
_computing_data_collection       'RAPID-AUTO (Rigaku 1998 <i>RAPID-AUTO</i>)'
_computing_data_reduction        'CrystalClear (Rigaku/MSC, 2002)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXL-97
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Rigaku RAXIS-RAPID'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0265
_diffrn_reflns_av_sigmaI/netI    0.0351
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            7586
_diffrn_reflns_theta_full        27.48
_diffrn_reflns_theta_max         27.48
_diffrn_reflns_theta_min         3.23
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  0.9859
_exptl_absorpt_correction_T_min  0.9735
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
ABSCOR (Higashi, 1995)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             316
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.234
_refine_diff_density_min         -0.169
_refine_diff_density_rms         0.045
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     201
_refine_ls_number_reflns         3480
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0582
_refine_ls_R_factor_gt           0.0447
_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^)+(0.0831P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1235
_refine_ls_wR_factor_ref         0.1313
_reflns_Friedel_coverage         0.000
_reflns_Friedel_fraction_full    .
_reflns_Friedel_fraction_max     .
_reflns_number_gt                2561
_reflns_number_total             3480
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            suppl_ncrs-2014-9124_suppl.cif
_cod_data_source_block           1
_cod_database_code               8106883