Ground-State Dioxygen Undergoes Metal-Free [3+2]-Annulations with Allenes and Nitrosoarenes Under Ambient Conditions
Liu, Rai-Shung; Liu, Jinxian; Skaria, Manisha; Sharma, Pankaj; Chiang, Yun-Wei; Chem. Sci.  (2017) –; doi:10.1039/C7SC01770G

data_1546109
_publ_section_title
;
 Ground-State Dioxygen Undergoes Metal-Free [3+2]-Annulations with Allenes
 and Nitrosoarenes Under Ambient Conditions
;
_journal_name_full               'Chem. Sci.'
_journal_paper_doi               10.1039/C7SC01770G
_journal_year                    2017
_chemical_absolute_configuration rm
_chemical_formula_sum            'C16 H15 N O3'
_chemical_formula_weight         269.29
_space_group_crystal_system      trigonal
_space_group_IT_number           145
_space_group_name_Hall           'P 32'
_space_group_name_H-M_alt        'P 32'
_symmetry_space_group_name_Hall  'P 32'
_symmetry_space_group_name_H-M   'P 32'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/6
_audit_update_record
;
2016-09-30 deposited with the CCDC.
2017-05-24 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            3
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_cell_length_b                   13.9065(11)
_cell_length_c                   6.0548(5)
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_cell_measurement_temperature    100(2)
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_cell_measurement_theta_min      2.9295
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_computing_cell_refinement       'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_data_collection       'APEX2 (Bruker AXS, 2010)'
_computing_data_reduction        'SAINT V8.34A (Bruker AXS Inc., 2013)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-2014/6 (Sheldrick, 2014)'
_diffrn_ambient_temperature      100(2)
_diffrn_detector_area_resol_mean 8.3333
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0315
_diffrn_reflns_av_unetI/netI     0.0343
_diffrn_reflns_Laue_measured_fraction_full 0.999
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_diffrn_reflns_limit_h_max       17
_diffrn_reflns_limit_h_min       -17
_diffrn_reflns_limit_k_max       17
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_diffrn_reflns_limit_l_min       -7
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_diffrn_reflns_point_group_measured_fraction_full 0.999
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_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.327
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_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  0.9485
_exptl_absorpt_correction_T_min  0.8931
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2014/4 (Bruker AXS Inc.)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.323
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Columnar
_exptl_crystal_F_000             426
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_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.222
_refine_diff_density_min         -0.234
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_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.1(15)
_refine_ls_extinction_method     none
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_refine_ls_restrained_S_all      1.205
_refine_ls_R_factor_all          0.0351
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_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0591P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0778
_refine_ls_wR_factor_ref         0.1020
_reflns_Friedel_coverage         1.000
_reflns_Friedel_fraction_full    0.999
_reflns_Friedel_fraction_max     0.999
_reflns_number_gt                2439
_reflns_number_total             2610
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7sc01770g2.cif
_cod_data_source_block           160334LT_0m
_cod_depositor_comments
;
The following automatic conversions were performed:

'_chemical_absolute_configuration' value 'RM' changed to 'rm'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        1014.07(18)
_cod_database_code               1546109
_shelxl_version_number           2014/6
_shelx_res_checksum              53424
_shelx_hkl_checksum              18831