3-Benzylisochroman-1-one
Babar, Tariq Mahmood; Qadeer, Ghulam; Rama, Nasim Hasan; Khawar Rauf, Muhammad; Wong, Wai-Yeung; Acta Crystallographica Section E 65 (2009) o498–; doi:10.1107/S1600536809004164

data_2221095
_publ_section_title
;
 3-Benzylisochroman-1-one
;
_journal_coeditor_code           HK2615
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o498
_journal_paper_doi               10.1107/S1600536809004164
_journal_volume                  65
_journal_year                    2009
_chemical_formula_iupac          'C16 H14 O2'
_chemical_formula_moiety         'C16 H14 O2'
_chemical_formula_sum            'C16 H14 O2'
_chemical_formula_weight         238.27
_chemical_melting_point          332(1)
_chemical_name_common            3-benzyl-3,4-dihydroisocumarin
_chemical_name_systematic
;
3-Benzylisochroman-1-one
;
_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                 102.43(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.503(5)
_cell_length_b                   8.0200(9)
_cell_length_c                   12.892(5)
_cell_measurement_reflns_used    1316
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      25.21
_cell_measurement_theta_min      5.32
_cell_volume                     1262.4(7)
_computing_cell_refinement       'SAINT (Bruker, 2002)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2002)'
_computing_molecular_graphics    'ORTEP-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\w and \f'
_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  0.0212
_diffrn_reflns_av_sigmaI/netI    0.0233
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            7148
_diffrn_reflns_theta_full        28.46
_diffrn_reflns_theta_max         28.46
_diffrn_reflns_theta_min         3.01
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.983
_exptl_absorpt_correction_T_min  0.820
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2001)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.254
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             504
_exptl_crystal_size_max          0.32
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.181
_refine_diff_density_min         -0.144
_refine_ls_extinction_coef       0.058(7)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL97 (Sheldrick, 2008)'
_refine_ls_goodness_of_fit_ref   1.025
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     164
_refine_ls_number_reflns         3024
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.025
_refine_ls_R_factor_all          0.0487
_refine_ls_R_factor_gt           0.0422
_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^)+(0.0818P)^2^+0.1131P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1271
_refine_ls_wR_factor_ref         0.1357
_reflns_number_gt                2546
_reflns_number_total             3024
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            hk2615.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2221095
_cod_database_fobs_code          2221095