C1 functionalization of imidazo heterocycles via carbon dioxide fixation
Neochoritis, Constantinos G.; Fragkiadakis , Michael; Anastasiou, Paraskevi-Kleio; Volyrakis, Ioannis; Pantousas, Apostolos; Stoumpos, Constantinos C.; Chemical Communications  (2023) –; doi:10.1039/D3CC04597H

data_7132342
_publ_section_title
;
 C1 functionalization of imidazo heterocycles via carbon dioxide fixation
;
_journal_name_full               'Chemical Communications'
_journal_paper_doi               10.1039/D3CC04597H
_journal_year                    2023
_chemical_formula_moiety         'C18 H17 N3 O4'
_chemical_formula_sum            'C18 H17 N3 O4'
_chemical_formula_weight         337.361
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_atom_sites_solution_hydrogens   difmap
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2023-09-13 deposited with the CCDC.	2023-11-13 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 99.553(4)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.7816(13)
_cell_length_b                   7.4720(7)
_cell_length_c                   18.3634(18)
_cell_measurement_reflns_used    1200
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      22.51
_cell_measurement_theta_min      2.25
_cell_volume                     1594.2(3)
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_computing_structure_solution    'SHELXT 2014/5 (Sheldrick, 2014)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.2120
_diffrn_reflns_av_unetI/netI     0.0552
_diffrn_reflns_Laue_measured_fraction_full 1.000
_diffrn_reflns_Laue_measured_fraction_max 1.000
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            79029
_diffrn_reflns_point_group_measured_fraction_full 1.000
_diffrn_reflns_point_group_measured_fraction_max 1.000
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         25.999
_diffrn_reflns_theta_min         2.249
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_T_max  0.7449
_exptl_absorpt_correction_T_min  0.6696
_exptl_absorpt_correction_type   numerical
_exptl_crystal_colour            yellow
_exptl_crystal_density_diffrn    1.414
_exptl_crystal_description       'rectangular needle'
_exptl_crystal_F_000             712
_exptl_crystal_size_max          0.206
_exptl_crystal_size_mid          0.049
_exptl_crystal_size_min          0.040
_exptl_transmission_factor_max   0.5584
_exptl_transmission_factor_min   0.2858
_refine_diff_density_max         0.235
_refine_diff_density_min         -0.258
_refine_diff_density_rms         0.059
_refine_ls_extinction_coef       0.039(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     'SHELXL-2018/3 (Sheldrick 2018)'
_refine_ls_goodness_of_fit_ref   1.018
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     295
_refine_ls_number_reflns         3141
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.018
_refine_ls_R_factor_all          0.1188
_refine_ls_R_factor_gt           0.0587
_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^)+(0.0856P)^2^+0.0679P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1322
_refine_ls_wR_factor_ref         0.1684
_reflns_Friedel_coverage         0.000
_reflns_number_gt                1700
_reflns_number_total             3141
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d3cc04597h2.cif
_cod_data_source_block           3n
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7132342
_shelx_shelxl_version_number     2018/3
_shelx_res_checksum              54238
_shelx_hkl_checksum              19623