Adducts of Nitrous Oxide and N-Heterocyclic Carbenes: Syntheses, Structures, and Reactivity
Alexander G. Tskhovrebov; Basile Vuichoud; Euro Solari; Rosario Scopelliti; Kay Severin; Journal of the American Chemical Society 135 (2013) 9486–9492; doi:10.1021/ja4030287

data_4119975
_publ_section_title
;
 Adducts of Nitrous Oxide and N-Heterocyclic Carbenes: Syntheses,
 Structures, and Reactivity
;
_journal_name_full               'Journal of the American Chemical Society'
_journal_page_first              9486
_journal_page_last               9492
_journal_paper_doi               10.1021/ja4030287
_journal_volume                  135
_journal_year                    2013
_chemical_formula_moiety         'C19 H20 N4 O'
_chemical_formula_sum            'C19 H20 N4 O'
_chemical_formula_weight         320.39
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2013-02-14 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 100.57(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.2250(16)
_cell_length_b                   15.862(3)
_cell_length_c                   13.308(3)
_cell_measurement_reflns_used    107
_cell_measurement_temperature    140(2)
_cell_measurement_theta_max      20
_cell_measurement_theta_min      3
_cell_volume                     1706.8(6)
_computing_cell_refinement       'automar, marresearch, 2010'
_computing_data_collection       'marmux - Micro-beam system, marresearch, 2010'
_computing_data_reduction        'automar, marresearch, 2010'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      140(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  marmux
_diffrn_measurement_method       '\p scans'
_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  0.0916
_diffrn_reflns_av_sigmaI/netI    0.1436
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            5429
_diffrn_reflns_theta_full        24.45
_diffrn_reflns_theta_max         24.45
_diffrn_reflns_theta_min         2.57
_exptl_absorpt_coefficient_mu    0.080
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.247
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             680
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.27
_exptl_crystal_size_min          0.16
_refine_diff_density_max         0.270
_refine_diff_density_min         -0.207
_refine_diff_density_rms         0.057
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.017
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     217
_refine_ls_number_reflns         2800
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.017
_refine_ls_R_factor_all          0.1692
_refine_ls_R_factor_gt           0.0814
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0885P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1720
_refine_ls_wR_factor_ref         0.2144
_reflns_number_gt                1374
_reflns_number_total             2800
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja4030287_si_003.cif
_cod_data_source_block           al261
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               4119975