Radical Contraction of 1,3,2-Dioxaphosphepanes to 1,3,2-Dioxaphosphorinanes: A Kinetic and ^17^O NMR Spectroscopic Study
David Crich; Fernando Sartillo-Piscil; Leticia Quintero-Cortes; Donald J. Wink; Journal of Organic Chemistry 67 (2002) 3360–3364; doi:10.1021/jo016388d

data_4022210
_publ_section_title
;
 Radical Contraction of 1,3,2-Dioxaphosphepanes to
 1,3,2-Dioxaphosphorinanes: A Kinetic and ^17^O NMR
 Spectroscopic Study
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              3360
_journal_page_last               3364
_journal_paper_doi               10.1021/jo016388d
_journal_volume                  67
_journal_year                    2002
_chemical_formula_sum            'C16 H17 O4 P'
_chemical_formula_weight         304.27
_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                 92.74(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.135(6)
_cell_length_b                   10.0595(8)
_cell_length_c                   24.328(5)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      18
_cell_measurement_theta_min      12
_cell_volume                     1499.7(16)
_computing_cell_refinement       'Nonius CAD4 software'
_computing_data_collection       'Nonius CAD4 software'
_computing_data_reduction        'XCAD (P.McArdle, 2000)'
_computing_molecular_graphics    'ORTEX (P.McArdle, 1995)'
_computing_publication_material  'SHELXL-97/2 (Sheldrick,1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  '4-circle diffractometer'
_diffrn_measurement_method       'scintillation counter'
_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  0.0301
_diffrn_reflns_av_sigmaI/netI    0.0306
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -3
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -3
_diffrn_reflns_limit_l_max       26
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            2228
_diffrn_reflns_theta_full        22.50
_diffrn_reflns_theta_max         22.50
_diffrn_reflns_theta_min         1.68
_diffrn_standards_interval_time  1800
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.196
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.348
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Parallelepiped
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.193
_refine_diff_density_min         -0.179
_refine_diff_density_rms         0.046
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.465
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     190
_refine_ls_number_reflns         1967
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.465
_refine_ls_R_factor_all          0.0535
_refine_ls_R_factor_gt           0.0377
_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^)+(0.1719P)^2^+5.4659P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1042
_refine_ls_wR_factor_ref         0.1310
_reflns_number_gt                1524
_reflns_number_total             1967
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo016388d_s2_2.cif
_cod_data_source_block           Compound_6
_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/n'
_cod_database_code               4022210