Phthalimides as exceptionally efficient single electron transfer acceptors in reductive coupling reactions promoted by samarium diiodide.
Vacas, Tatiana; Alvarez, Eleuterio; Chiara, Jose Luis; Organic letters 9 (2007) 5445–5448; doi:10.1021/ol7023357

data_1505630
_publ_section_title
;
 Phthalimides as exceptionally efficient single electron transfer
 acceptors in reductive coupling reactions promoted by samarium diiodide.
;
_journal_issue                   26
_journal_name_full               'Organic letters'
_journal_page_first              5445
_journal_page_last               5448
_journal_paper_doi               10.1021/ol7023357
_journal_volume                  9
_journal_year                    2007
_chemical_formula_moiety         'C19 H20 N2 O3'
_chemical_formula_sum            'C19 H20 N2 O3'
_chemical_formula_weight         324.37
_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                 99.448(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.3633(3)
_cell_length_b                   15.3041(6)
_cell_length_c                   14.7261(6)
_cell_measurement_reflns_used    7609
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      30.68
_cell_measurement_theta_min      2.66
_cell_volume                     1636.95(11)
_computing_cell_refinement       'SAINT+ v. 7.06 a (Bruker AXS, 2003)'
_computing_data_collection       'APEX-W2K-NT v. 1.0 (Bruker AXS, 2004)'
_computing_data_reduction        'SAINT+ v. 7.06 a (Bruker AXS, 2001)'
_computing_molecular_graphics    'XP, SHELXTL v. 6.10 (Bruker, 2000)'
_computing_publication_material  'XCIF, SHELXTL v. 6.12 (Bruker, 2001)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.26
_diffrn_measured_fraction_theta_full 0.994
_diffrn_measured_fraction_theta_max 0.994
_diffrn_measurement_device_type
;
 Bruker-Nonius X8kappa APEX II CCD area detector'
;
_diffrn_measurement_method       'phi and omega scans with narrow frames'
_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  0.0414
_diffrn_reflns_av_sigmaI/netI    0.0288
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -21
_diffrn_reflns_limit_l_max       20
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            74385
_diffrn_reflns_theta_full        30.89
_diffrn_reflns_theta_max         30.89
_diffrn_reflns_theta_min         2.80
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.090
_exptl_absorpt_correction_T_max  0.9779
_exptl_absorpt_correction_T_min  0.9497
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
 SADABS v. 2.03: Area-Detector Absorption Correction.
 (1997-2001) Bruker-AXS within SAINT+ package, v. 6.04
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.316
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             688
_exptl_crystal_size_max          0.58
_exptl_crystal_size_mid          0.57
_exptl_crystal_size_min          0.25
_refine_diff_density_max         0.464
_refine_diff_density_min         -0.389
_refine_diff_density_rms         0.069
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.084
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     224
_refine_ls_number_reflns         5147
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.084
_refine_ls_R_factor_all          0.0743
_refine_ls_R_factor_gt           0.0467
_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^)+(0.0470P)^2^+1.1527P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1085
_refine_ls_wR_factor_ref         0.1276
_reflns_number_gt                3827
_reflns_number_total             5147
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol7023357-file003.cif
_cod_data_source_block           8_minor_diastereoisomer
_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_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      P2(1)/c
_cod_database_code               1505630