6,7-Dimethyl-3,4,4a,7,8,8a-hexahydroisochromen-1-one
Kayal, Nijhuma; McKee, Vickie; Acta Crystallographica Section E 59 (2003) o701–o702; doi:10.1107/S160053680300864X

data_2202084
_publ_section_title
;
 6,7-Dimethyl-3,4,4a,7,8,8a-hexahydroisochromen-1-one
;
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o701
_journal_page_last               o702
_journal_paper_doi               10.1107/S160053680300864X
_journal_volume                  59
_journal_year                    2003
_chemical_formula_iupac          'C11 H16 O2'
_chemical_formula_moiety         'C11 H16 O2'
_chemical_formula_sum            'C11 H16 O2'
_chemical_formula_weight         180.24
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 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                 96.530(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   14.2924(17)
_cell_length_b                   5.4060(6)
_cell_length_c                   25.969(3)
_cell_measurement_reflns_used    3712
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.76
_cell_measurement_theta_min      2.63
_cell_volume                     1993.5(4)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 1998)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w'
_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  0.0307
_diffrn_reflns_av_sigmaI/netI    0.0306
_diffrn_reflns_limit_h_max       16
_diffrn_reflns_limit_h_min       -16
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            13507
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         1.56
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.937585
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SHELXTL/SADABS; Sheldrick, 1997)'
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.201
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             784
_exptl_crystal_size_max          0.48
_exptl_crystal_size_mid          0.11
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.205
_refine_diff_density_min         -0.166
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.040
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     239
_refine_ls_number_reflns         3517
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.040
_refine_ls_R_factor_all          0.0628
_refine_ls_R_factor_gt           0.0400
_refine_ls_shift/su_max          <0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w = 1/[\s^2^(Fo^2^)+(0.0381P)^2^+0.7308P] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0899
_refine_ls_wR_factor_ref         0.0998
_reflns_number_gt                2526
_reflns_number_total             3517
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            na6225.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_cell_volume        1993.4(4)
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2202084
_cod_database_fobs_code          2202084