Synthesis and Structure of Hydroxyl Acids of General Structure 7,7-Alkenyl/alkynyl-5-hydroxymethyl-6-oxabicyclo[3.2.1]octane- 1-carboxylic Acid
Natalia Pérez-Hernández; Martín Febles; Cirilo Pérez; Matías L. Rodríguez; Concepción Foces-Foces; Julio D. Martín; Journal of Organic Chemistry 71 (2006) 1139–1151; doi:10.1021/jo052237p

data_4021458
_publ_section_title
;
 Synthesis and Structure of Hydroxyl Acids of General Structure
 7,7-Alkenyl/alkynyl-5-hydroxymethyl-6-oxabicyclo[3.2.1]octane-
 1-carboxylic Acid
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1139
_journal_page_last               1151
_journal_paper_doi               10.1021/jo052237p
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C13 H18 O4'
_chemical_formula_sum            'C13 H18 O4'
_chemical_formula_weight         238.27
_chemical_name_systematic
;
 (1R*, 5R*)-7,7-divinyl-5-hydroxymethyl-6-
oxabicyclo[3.2.1]octane-1-carboxylic acid

;
_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                 128.818(7)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9310(12)
_cell_length_b                   14.491(3)
_cell_length_c                   12.0300(13)
_cell_measurement_reflns_used    2878
_cell_measurement_temperature    170(2)
_cell_measurement_theta_max      27.50
_cell_measurement_theta_min      2.59
_cell_volume                     1213.1(3)
_computing_cell_refinement
'HKL Denzo and Scalepack (Otwinowski & Minor 1997)'
_computing_data_collection       'Collect (Nonius BV, 2000)'
_computing_data_reduction
'HKL Denzo and Scalepak (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXL-97, WinGX (Farrugia, 1999) and PLATON'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      170(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       '95mm CCD camera on \k-goniostat'
_diffrn_measurement_device_type  KappaCCD
_diffrn_measurement_method       '\f and \w'
_diffrn_radiation_monochromator  'horizontally mounted graphite crystal'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0000
_diffrn_reflns_av_sigmaI/netI    0.0348
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            2788
_diffrn_reflns_theta_full        27.50
_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.59
_exptl_absorpt_coefficient_mu    0.096
_exptl_absorpt_correction_T_max  0.9718
_exptl_absorpt_correction_T_min  0.9581
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.305
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             512
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.537
_refine_diff_density_min         -0.346
_refine_diff_density_rms         0.068
_refine_ls_extinction_coef       0.026(5)
_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   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     155
_refine_ls_number_reflns         2788
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0607
_refine_ls_R_factor_gt           0.0521
_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^)+(0.0620P)^2^+0.7667P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1296
_refine_ls_wR_factor_ref         0.1362
_reflns_number_gt                2415
_reflns_number_total             2788
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo052237psi20051102_104042_3.cif
_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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4021458