Crystal structure of (3S,Z)-3-hydroxy-3,6-dimethyl-2-(3-methylbutylidene)-3,3a,7,7a-tetrahydrobenzofuran-4(2H)-one, C15H22O3
Hubiao Fang; Lei Chen; Nianyu Huang; Junzhi Wang; Zhaojiang Liao; Zeitschrift für Kristallographie - New Crystal Structures 227 (2012) 87–; doi:

data_8103289
_publ_section_title
;
 Crystal structure of
 (3S,Z)-3-hydroxy-3,6-dimethyl-2-(3-methylbutylidene)-3,3a,7,7a-tetrahydrobenzofuran-4(2H)-one,
 C15H22O3
;
_journal_issue                   1
_journal_name_full
'Zeitschrift f\"ur Kristallographie - New Crystal Structures'
_journal_page_first              87
_journal_volume                  227
_journal_year                    2012
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C15 H22 O3'
_chemical_formula_sum            'C15 H22 O3'
_chemical_formula_weight         250.33
_chemical_melting_point          373
_chemical_name_systematic
; 
(3S,Z)-3-hydroxy-3,6-dimethyl-2-(3-methylbutylidene)-3,3a,7,7a-
 tetrahydrobenzofuran-4(2H)-one
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.9826(17)
_cell_length_b                   9.271(3)
_cell_length_c                   24.155(8)
_cell_measurement_reflns_used    3544
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      27.52
_cell_measurement_theta_min      2.35
_cell_volume                     1563.7(8)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'SMART (Bruker, 2007)'
_computing_data_reduction        'SAINT (Bruker, 2007)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXS97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type  'Bruker SMART CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.1252
_diffrn_reflns_av_sigmaI/netI    0.0769
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -31
_diffrn_reflns_number            13142
_diffrn_reflns_theta_full        27.52
_diffrn_reflns_theta_max         27.52
_diffrn_reflns_theta_min         2.35
_exptl_absorpt_coefficient_mu    0.073
_exptl_absorpt_correction_T_max  0.987
_exptl_absorpt_correction_T_min  0.982
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            white
_exptl_crystal_density_diffrn    1.063
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.23
_exptl_crystal_size_min          0.18
_refine_diff_density_max         0.225
_refine_diff_density_min         -0.227
_refine_diff_density_rms         0.049
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   2(3)
_refine_ls_extinction_coef       0.08(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.013
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     177
_refine_ls_number_reflns         3544
_refine_ls_number_restraints     129
_refine_ls_restrained_S_all      1.125
_refine_ls_R_factor_all          0.1033
_refine_ls_R_factor_gt           0.0894
_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^)+(0.1844P)^2^+0.0723P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2600
_refine_ls_wR_factor_ref         0.2848
_reflns_number_gt                2625
_reflns_number_total             3544
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            1267-3615.cff
_cod_data_source_block           z
_cod_original_cell_volume        1563.6(8)
_cod_original_sg_symbol_H-M      P212121
_cod_database_code               8103289