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_4119976
_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         'C5 H8 N4 O'
_chemical_formula_sum            'C5 H8 N4 O'
_chemical_formula_weight         140.15
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_audit_update_record
;
2013-01-17 # Formatted by publCIF
;
_cell_angle_alpha                90.00
_cell_angle_beta                 94.942(4)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.9744(4)
_cell_length_b                   14.5125(10)
_cell_length_c                   7.4590(3)
_cell_measurement_reflns_used    156
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      22
_cell_measurement_theta_min      3
_cell_volume                     644.32(7)
_computing_cell_refinement       'Dirax/lsq (Duisenberg & Schreurs, 1989-2000)'
_computing_data_collection       'Collect (Bruker AXS BV, 1997-2004)'
_computing_data_reduction        'EvalCCD (Duisenberg & Schreurs, 1990-2000)'
_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      100(2)
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device_type  'Bruker APEX II CCD'
_diffrn_measurement_method       'phi and omega 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  0.0281
_diffrn_reflns_av_sigmaI/netI    0.0138
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       17
_diffrn_reflns_limit_k_min       -16
_diffrn_reflns_limit_l_max       8
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            8799
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.08
_exptl_absorpt_coefficient_mu    0.108
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.6881
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2008, Bruker AXS, 2008'
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.445
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             296
_exptl_crystal_size_max          0.44
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.195
_refine_diff_density_min         -0.184
_refine_diff_density_rms         0.035
_refine_ls_extinction_coef       0.019(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.122
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     124
_refine_ls_number_reflns         1128
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.122
_refine_ls_R_factor_all          0.0341
_refine_ls_R_factor_gt           0.0288
_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^)+(0.0376P)^2^+0.1963P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0725
_refine_ls_wR_factor_ref         0.0763
_reflns_number_gt                1014
_reflns_number_total             1128
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ja4030287_si_004.cif
_cod_data_source_block           al283
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4119976