A General Synthesis of N-Vinyl Nitrones
Scott E. Denmark; Justin I. Montgomery; Journal of Organic Chemistry 71 (2006) 6211–6220; doi:10.1021/jo060975n

data_4021869
_publ_contact_author
; 
Scott E. Denmark 
University of Illinois 
Department of Chemistry, Box 18-5 
600 South Mathews Avenue 
Urbana, Illinois  61801 
USA 
;
_publ_contact_author_email       srwilson@uiuc.edu
_publ_contact_author_fax         '1  217 244 8068'
_publ_contact_author_phone       '1  217 244 1708'
_publ_section_title
;
 A General Synthesis of N-Vinyl Nitrones
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              6211
_journal_page_last               6220
_journal_paper_doi               10.1021/jo060975n
_journal_volume                  71
_journal_year                    2006
_chemical_formula_moiety         'C12 H13 N O2'
_chemical_formula_sum            'C12 H13 N O2'
_chemical_formula_weight         203.23
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
; 
2003-07-23   text and data added, srw 
;
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   8.634(6)
_cell_length_b                   10.072(7)
_cell_length_c                   23.622(16)
_cell_measurement_reflns_used    905
_cell_measurement_temperature    193(2)
_cell_measurement_theta_max      27.0
_cell_measurement_theta_min      2.9
_cell_volume                     2054(2)
_computing_cell_refinement       'SAINT V6.22 (Bruker, 2001)'
_computing_data_collection       'SMART V5.625 (Bruker, 2001)'
_computing_data_reduction        'SAINT V6.22 (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL V6.10 (Bruker, 2001)'
_computing_publication_material  'CIFTAB (Sheldrick, 2001)'
_computing_structure_refinement  'SHELXTL V6.10 (Bruker, 2001)'
_computing_structure_solution    'SHELXTL V6.10 (Bruker, 2001)'
_diffrn_ambient_temperature      193(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device       'Siemens Platform/CCD'
_diffrn_measurement_method       'profile data from \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'normal-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_radiation_wavelength_id  p49xas
_diffrn_reflns_av_R_equivalents  0.0381
_diffrn_reflns_av_sigmaI/netI    0.0220
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            16383
_diffrn_reflns_theta_full        25.36
_diffrn_reflns_theta_max         25.36
_diffrn_reflns_theta_min         2.92
_diffrn_standards_decay_%        0.9
_diffrn_standards_interval_time  458
_diffrn_standards_number         270
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9897
_exptl_absorpt_correction_T_min  0.9629
_exptl_absorpt_correction_type   integration
_exptl_absorpt_process_details   '(Bruker, 2001)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.314
_exptl_crystal_density_meas      ?
_exptl_crystal_description       tabular
_exptl_crystal_F_000             864
_exptl_crystal_id                p49xas
_exptl_crystal_preparation
; 
The data crystal was mounted using oil (Parantone-N, Exxon) to a 
0.4 mm cryo-loop (Hampton Research) with the (0 0 -1) scattering planes 
roughly normal to the spindle axis. 
;
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.125
_refine_diff_density_min         -0.134
_refine_diff_density_rms         0.026
_refine_ls_extinction_coef       0.0040(9)
_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   1.025
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_parameters     216
_refine_ls_number_reflns         1879
_refine_ls_number_restraints     195
_refine_ls_restrained_S_all      0.991
_refine_ls_R_factor_all          0.0506
_refine_ls_R_factor_gt           0.0341
_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^)+(0.0433P)^2^+0.3194P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0804
_refine_ls_wR_factor_ref         0.0867
_reflns_number_gt                1451
_reflns_number_total             1879
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo060975nrom20060510_010541.cif
_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.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_Hall     '-P 2ac 2ab '
_cod_original_sg_symbol_H-M      'P b c a '
_cod_database_code               4021869