A combined experimental and theoretical study of the thermal cycloaddition of aryl azides with activated alkenes.
Zeghada, Sarah; Bentabed-Ababsa, Ghenia; Derdour, Aïcha; Abdelmounim, Safer; Domingo, Luis R.; Sáez, José A; Roisnel, Thierry; Nassar, Ekhlass; Mongin, Florence; Organic & biomolecular chemistry 9 (2011) 4295–4305; doi:10.1039/c1ob05176h

data_7151917
_publ_section_title
;
 A combined experimental and theoretical study of the thermal
 cycloaddition of aryl azides with activated alkenes.
;
_journal_issue                   11
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              4295
_journal_page_last               4305
_journal_paper_doi               10.1039/c1ob05176h
_journal_volume                  9
_journal_year                    2011
_chemical_absolute_configuration ad
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         '2(C11 H10 Cl N3 O2)'
_chemical_formula_sum            'C11 H10 Cl N3 O2'
_chemical_formula_weight         251.67
_space_group_IT_number           29
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      29
_symmetry_space_group_name_Hall  'P 2c -2b'
_symmetry_space_group_name_H-M   'P b c 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2010-03-12T14:15:55-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   3.81640(10)
_cell_length_b                   12.7220(3)
_cell_length_c                   46.6476(13)
_cell_measurement_reflns_used    4927
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      27.27
_cell_measurement_theta_min      3.23
_cell_measurement_wavelength     0.71073
_cell_volume                     2264.85(10)
_computing_cell_refinement       'Bruker SMART (Bruker, 2002)'
_computing_data_collection       'Bruker SAINT (Bruker, 2002)'
_computing_data_reduction        'Bruker SAINT (Bruker, 2002)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material
;
WinGX publication routines (Farrugia, 1999),
CRYSCAL (T. Roisnel, local program)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (ALtomare et al., 1999))'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0243
_diffrn_reflns_av_unetI/netI     0.0301
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       16
_diffrn_reflns_limit_k_min       -15
_diffrn_reflns_limit_l_max       39
_diffrn_reflns_limit_l_min       -60
_diffrn_reflns_number            11029
_diffrn_reflns_theta_full        27.42
_diffrn_reflns_theta_max         27.42
_diffrn_reflns_theta_min         3.2
_exptl_absorpt_coefficient_mu    0.330
_exptl_absorpt_correction_T_max  0.974
_exptl_absorpt_correction_T_min  0.869
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
[Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.476
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       stick
_exptl_crystal_F_000             1040
_exptl_crystal_size_max          0.27
_exptl_crystal_size_mid          0.13
_exptl_crystal_size_min          0.08
_refine_diff_density_max         0.329
_refine_diff_density_min         -0.396
_refine_diff_density_rms         0.05
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.05(8)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.08
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     311
_refine_ls_number_reflns         4171
_refine_ls_number_restraints     1
_refine_ls_restrained_S_all      1.08
_refine_ls_R_factor_all          0.0454
_refine_ls_R_factor_gt           0.0403
_refine_ls_shift/su_max          0.01
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0232P)^2^+2.1823P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0874
_refine_ls_wR_factor_ref         0.0898
_reflns_number_gt                3781
_reflns_number_total             4171
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c1ob05176h.txt
_cod_data_source_block           3f
_cod_database_code               7151917