Lewis Acid stabilization and Activation of Primary N-Nitrosamides
Chua, Zhijie; Rosadiuk, Kris; Perepichka, Inna; Bohle, Scott; RSC Adv.  (2017) –; doi:10.1039/C6RA24421A

data_7227416
_publ_section_title
;
 Lewis Acid stabilization and Activation of Primary N-Nitrosamides
;
_journal_name_full               'RSC Adv.'
_journal_paper_doi               10.1039/C6RA24421A
_journal_year                    2017
_chemical_formula_moiety         'C2 H3 K N2 O3'
_chemical_formula_sum            'C2 H3 K N2 O3'
_chemical_formula_weight         142.16
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_audit_block_doi                 10.5517/cc1jjwfc
_audit_creation_method           SHELXL-2014/7
_audit_update_record
;
2017-01-05 deposited with the CCDC.
2017-01-09 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   5.8792(7)
_cell_length_b                   6.8542(8)
_cell_length_c                   12.8207(14)
_cell_measurement_reflns_used    3973
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      27.82
_cell_measurement_theta_min      3.18
_cell_volume                     516.64(10)
_computing_cell_refinement       'Bruker SAINT'
_computing_data_collection       'Bruker APEX2'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-2014/7 (Sheldrick, 2014)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.949
_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  0.0211
_diffrn_reflns_av_unetI/netI     0.0181
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 0.949
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5630
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 0.951
_diffrn_reflns_theta_full        25.000
_diffrn_reflns_theta_max         28.427
_diffrn_reflns_theta_min         3.178
_diffrn_source                   'fine-focus sealed tube'
_exptl_absorpt_coefficient_mu    0.938
_exptl_absorpt_correction_T_max  0.9120
_exptl_absorpt_correction_T_min  0.7054
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS V2008/1 (Bruker AXS)'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.828
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             288
_exptl_crystal_size_max          0.400
_exptl_crystal_size_mid          0.200
_exptl_crystal_size_min          0.100
_refine_diff_density_max         0.632
_refine_diff_density_min         -0.206
_refine_diff_density_rms         0.053
_refine_ls_abs_structure_details
;
 Refined as an inversion twin.
;
_refine_ls_abs_structure_Flack   0.27(6)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.140
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     74
_refine_ls_number_reflns         1201
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.140
_refine_ls_R_factor_all          0.0222
_refine_ls_R_factor_gt           0.0215
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0261P)^2^+0.1531P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0537
_refine_ls_wR_factor_ref         0.0539
_reflns_Friedel_coverage         0.659
_reflns_Friedel_fraction_full    1.000
_reflns_Friedel_fraction_max     0.953
_reflns_number_gt                1176
_reflns_number_total             1201
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c6ra24421a2.cif
_cod_data_source_block           1416403
_cod_database_code               7227416
_shelx_shelxl_version_number     2014/7
_shelx_estimated_absorpt_t_min   0.705
_shelx_estimated_absorpt_t_max   0.912
_shelx_res_checksum              13116