Alternative Route Toward Nitrones: Experimental and Theoretical Findings.
Safin, Damir A.; Mitoraj, Mariusz P.; Babashkina, Maria G.; Kubisiak, Piotr; Robeyns, Koen; Filinchuk, Yaroslav; The Journal of organic chemistry 82 (2017) 1666–1675; doi:10.1021/acs.joc.6b02821

data_4032322
_publ_section_title
;
 Alternative Route Toward Nitrones: Experimental and Theoretical Findings.
;
_journal_issue                   3
_journal_name_full               'The Journal of organic chemistry'
_journal_page_first              1666
_journal_page_last               1675
_journal_paper_doi               10.1021/acs.joc.6b02821
_journal_volume                  82
_journal_year                    2017
_chemical_formula_moiety         'C14 H10 N4'
_chemical_formula_sum            'C14 H10 N4'
_chemical_formula_weight         234.26
_space_group_crystal_system      orthorhombic
_space_group_IT_number           29
_space_group_name_Hall           'P 2c -2ac'
_space_group_name_H-M_alt        'P c a 21'
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_atom_sites_solution_hydrogens   geom
_audit_creation_method           SHELXL-2014/7
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            12
_cell_length_a                   30.257(2)
_cell_length_b                   6.1188(4)
_cell_length_c                   18.0108(13)
_cell_measurement_reflns_used    1848
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      24.2850
_cell_measurement_theta_min      3.3140
_cell_volume                     3334.5(4)
_computing_cell_refinement
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.31 (release 14-01-2014 CrysAlis171 .NET)
(compiled Jan 14 2014,18:38:05)
;
_computing_data_collection       MAR
_computing_data_reduction
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.31 (release 14-01-2014 CrysAlis171 .NET)
(compiled Jan 14 2014,18:38:05)
;
_computing_molecular_graphics    'MERCURY (Macrae et al., 2008)'
_computing_publication_material
;

'MERCURY (Macrae et al., 2008), Platon (Spek, 2009)'

;
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'MAR345 image plate'
_diffrn_measurement_method       '150 images, \D\F 1.2\% '
_diffrn_radiation_monochromator  'Xenocs Fox3D mirror'
_diffrn_radiation_source         'Rigaku UltraX 18 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0996
_diffrn_reflns_av_unetI/netI     0.0744
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       31
_diffrn_reflns_limit_h_min       -31
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            12667
_diffrn_reflns_point_group_measured_fraction_full 0.983
_diffrn_reflns_point_group_measured_fraction_max 0.983
_diffrn_reflns_theta_full        21.967
_diffrn_reflns_theta_max         21.967
_diffrn_reflns_theta_min         2.921
_exptl_absorpt_coefficient_mu    0.088
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94782
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Agilent Technologies,
Version 1.171.37.35 (release 13-08-2014 CrysAlis171 .NET)
(compiled Aug 13 2014,18:06:01)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.400
_exptl_crystal_description       plate
_exptl_crystal_F_000             1464
_exptl_crystal_size_max          0.120
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.040
_refine_diff_density_max         1.049
_refine_diff_density_min         -0.616
_refine_diff_density_rms         0.156
_refine_ls_abs_structure_details
;
 Flack x determined using 681 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.6(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.067
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     451
_refine_ls_number_reflns         4000
_refine_ls_number_restraints     619
_refine_ls_restrained_S_all      1.028
_refine_ls_R_factor_all          0.2690
_refine_ls_R_factor_gt           0.2165
_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^)+(0.0800P)^2^+95.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.4274
_refine_ls_wR_factor_ref         0.4573
_reflns_Friedel_coverage         0.898
_reflns_Friedel_fraction_full    0.969
_reflns_Friedel_fraction_max     0.969
_reflns_number_gt                2458
_reflns_number_total             4000
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            jo6b02821_si_003.cif
_cod_data_source_block           3
_cod_database_code               4032322
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.989
_shelx_estimated_absorpt_t_max   0.996
_shelx_res_checksum              8066
_shelx_hkl_checksum              39472