New procedure for the preparation of highly sterically hindered alkenes using a hypervalent iodine reagent.
ter Wiel, Matthijs K. J.; Vicario, Javier; Davey, Stephen G.; Meetsma, Auke; Feringa, Ben L.; Organic & biomolecular chemistry 3 (2005) 28–30; doi:

data_7150029
_publ_section_title
;
 New procedure for the preparation of highly sterically hindered
 alkenes using a hypervalent iodine reagent.
;
_journal_issue                   1
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              28
_journal_page_last               30
_journal_volume                  3
_journal_year                    2005
_chemical_absolute_configuration ad
_chemical_compound_source        'see text'
_chemical_formula_moiety         'C27 H20 O S'
_chemical_formula_sum            'C27 H20 O S'
_chemical_formula_weight         392.52
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      19
_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     heavy
_atom_sites_solution_secondary   direct
_audit_creation_date             '2004-06-29  09:19:05'
_audit_creation_method
;
PLATON <TABLE ACC> option
SHELXL97-2 & Manual Editing
;
_audit_update_record
;
?
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   6.4273(3)
_cell_length_b                   15.6636(8)
_cell_length_c                   18.9920(9)
_cell_measurement_reflns_used    6446
_cell_measurement_temperature    100(1)
_cell_measurement_theta_max      29.45
_cell_measurement_theta_min      2.60
_cell_volume                     1912.01(16)
_computing_cell_refinement       'SAINT, Bruker Version 6.02A, 2000'
_computing_data_collection       'SMART, Bruker Version 5.624, 2001'
_computing_data_reduction        'XPREP, Bruker Version 5.1/NT, 2000'
_computing_molecular_graphics
;
PLUTO (Meetsma, 2003)
PLATON (Spek, 1994)
;
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution
;
DIRDIF-99 (Beurskens et al., 1999)
;
_diffrn_ambient_temperature      100(1)
_diffrn_detector_area_resol_mean '4096x4096 / 62x62 (binned 512)'
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type
;
Bruker Smart Apex
;
_diffrn_measurement_method       'phi and omega scans'
_diffrn_radiation_detector
;
CCD area-detector
;
_diffrn_radiation_monochromator  'parallel mounted graphite'
_diffrn_radiation_source         'fine focus sealed Siemens Mo tube '
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0203
_diffrn_reflns_av_sigmaI/netI    0.0195
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            17580
_diffrn_reflns_reduction_process
;
Intensity data were corrected for Lorentz and polarization
effects, decay and absorption and reduced to F~o~^2^
using SAINT (Bruker, 2000) and SADABS (Sheldrick, 2001)
;
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.51
_exptl_absorpt_coefficient_mu    0.186
_exptl_absorpt_correction_T_max  0.9345
_exptl_absorpt_correction_T_min  0.8686
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS, Sheldrick, Bruker, 2000))'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.363
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             824
_exptl_crystal_size_max          0.51
_exptl_crystal_size_mid          0.42
_exptl_crystal_size_min          0.37
_refine_diff_density_max         0.107
_refine_diff_density_min         -0.076
_refine_diff_density_rms         0.021
_refine_ls_abs_structure_details
;
Enantiomorph twin refinement
Flack, H.D. & Bernardinelli, G. (1999, 2000)
;
_refine_ls_abs_structure_Flack   0.59(5)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.956
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     343
_refine_ls_number_reflns         4735
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.956
_refine_ls_R_factor_all          0.0298
_refine_ls_R_factor_gt           0.0292
_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^)+(0.0568P)^2^+0.4536P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0767
_refine_ls_wR_factor_ref         0.0773
_reflns_number_gt                4646
_reflns_number_total             4735
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            b414959a-2.txt
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Orthorhombic' changed to 'orthorhombic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from
2010-06-29.

'_exptl_absorpt_correction_type' value 'Multi-Scan' changed
to 'multi-scan' 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_database_code               7150029
_vrn_publ_code_squeezed_elec     0.0
_vrn_publ_code_void_volume       0.0
_vrn_publ_code_frame_time_sec    5.0
_vrn_publ_code_meas_time_hour    5.5