Fixation of nitrous oxide by mesoionic and carbanionic N-heterocyclic carbenes.
Eymann, Léonard Y M; Scopelliti, Rosario; Fadaei, Farzaneh T.; Cecot, Giacomo; Solari, Euro; Severin, Kay; Chemical communications (Cambridge, England) 53 (2017) 4331–4334; doi:10.1039/c7cc01592e

data_7119892
_publ_section_title
;
 Fixation of nitrous oxide by mesoionic and carbanionic N-heterocyclic
 carbenes.
;
_journal_issue                   31
_journal_name_full               'Chemical communications (Cambridge, England)'
_journal_page_first              4331
_journal_page_last               4334
_journal_paper_doi               10.1039/c7cc01592e
_journal_volume                  53
_journal_year                    2017
_chemical_formula_moiety         'C31 H43 Li N6 O3, C4 H8 O'
_chemical_formula_sum            'C35 H51 Li N6 O4'
_chemical_formula_weight         626.75
_chemical_name_systematic        1_LE-5-11
_chemical_properties_physical    ', Heat-sensitive'
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_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-2016/6
_audit_update_record
;
2017-02-15 deposited with the CCDC.
2017-03-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 112.0396(9)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   15.33916(12)
_cell_length_b                   15.62771(7)
_cell_length_c                   15.99955(12)
_cell_measurement_reflns_used    18459
_cell_measurement_temperature    100(2)
_cell_measurement_theta_max      28.8620
_cell_measurement_theta_min      1.5740
_cell_volume                     3555.08(5)
_computing_cell_refinement       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_collection       'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_data_reduction        'CrysAlisPro 1.171.38.41 (Rigaku OD, 2015)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'CIFTAB (Sheldrick, 2016)'
_computing_structure_refinement  'SHELXL-2016/6 (Sheldrick, 2016)'
_computing_structure_solution    'SHELXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.946
_diffrn_measured_fraction_theta_max 0.946
_diffrn_measurement_device_type  'Pilatus 2M Pixel Detector(Dectris)'
_diffrn_measurement_method       'Omega Scans'
_diffrn_radiation_monochromator  Si(111)
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           synchrotron
_diffrn_radiation_wavelength     0.7129
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_unetI/netI     0.0072
_diffrn_reflns_Laue_measured_fraction_full 0.946
_diffrn_reflns_Laue_measured_fraction_max 0.946
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       -18
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -18
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            131249
_diffrn_reflns_point_group_measured_fraction_full 0.946
_diffrn_reflns_point_group_measured_fraction_max 0.946
_diffrn_reflns_theta_full        24.793
_diffrn_reflns_theta_max         24.793
_diffrn_reflns_theta_min         1.573
_diffrn_source                   synchrotron
_diffrn_source_details           'synchrotron radiation'
_diffrn_source_type              'ESRF beamline SNBL'
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.94379
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro 1.171.38.41 (Rigaku Oxford Diffraction, 2015)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.171
_exptl_crystal_description       plate
_exptl_crystal_F_000             1352
_exptl_crystal_size_max          0.300
_exptl_crystal_size_mid          0.250
_exptl_crystal_size_min          0.050
_refine_diff_density_max         0.577
_refine_diff_density_min         -0.278
_refine_diff_density_rms         0.040
_refine_ls_extinction_coef       0.0022(5)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2016/6 (Sheldrick 2016)'
_refine_ls_goodness_of_fit_ref   1.045
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     463
_refine_ls_number_reflns         5741
_refine_ls_number_restraints     19
_refine_ls_restrained_S_all      1.058
_refine_ls_R_factor_all          0.0456
_refine_ls_R_factor_gt           0.0445
_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^)+(0.0658P)^2^+1.9855P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1224
_refine_ls_wR_factor_ref         0.1233
_reflns_Friedel_coverage         0.000
_reflns_number_gt                5509
_reflns_number_total             5741
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c7cc01592e2.cif
_cod_data_source_block           shelx
_cod_depositor_comments
'Adding full bibliography for 7119887--7119892.cif.'
_cod_database_code               7119892
_shelx_shelxl_version_number     2016/6
_shelx_res_checksum              17374
_shelx_hkl_checksum              6797