Deproto-metallation using a mixed lithium-zinc base and computed CH acidity of 1-aryl 1H-benzotriazoles and 1-aryl 1H-indazoles.
Nagaradja, Elisabeth; Chevallier, Floris; Roisnel, Thierry; Dorcet, Vincent; Halauko, Yury S.; Ivashkevich, Oleg A.; Matulis, Vadim E.; Mongin, Florence; Organic & biomolecular chemistry 12 (2014) 1475–1487; doi:10.1039/c3ob42380h

data_7153623
_publ_section_title
;
 Deproto-metallation using a mixed lithium-zinc base and computed CH
 acidity of 1-aryl 1H-benzotriazoles and 1-aryl 1H-indazoles.
;
_journal_issue                   9
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1475
_journal_page_last               1487
_journal_paper_doi               10.1039/c3ob42380h
_journal_volume                  12
_journal_year                    2014
_chemical_compound_source        'synthesis as described'
_chemical_formula_moiety         'C11 H8 N4'
_chemical_formula_sum            'C11 H8 N4'
_chemical_formula_weight         196.21
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      14
_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_conform_dict_location     ftp://ftp.iucr.org/pub/cif_core.dic
_audit_conform_dict_name         cif_core.dic
_audit_conform_dict_version      2.3
_audit_creation_date             2013-03-05T14:13:14-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 96.597(7)
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   11.2914(14)
_cell_length_b                   3.7335(4)
_cell_length_c                   21.924(3)
_cell_measurement_reflns_used    215
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      22.94
_cell_measurement_theta_min      2.45
_cell_measurement_wavelength     0.71073
_cell_volume                     918.1(2)
_computing_cell_refinement       'Bruker APEX2 (Bruker, 2006)'
_computing_data_collection       'Bruker APEX2 (Bruker, 2006)'
_computing_data_reduction        'Bruker APEX2 (Bruker, 2006)'
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material
;
           WinGX publication routines (Farrugia, 2012),
           CRYSCAL (T. Roisnel, local program)
;
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare et al., 1999)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector                 'CCD plate'
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'APEXII, Bruker-AXS'
_diffrn_measurement_method       'CCD rotation images, thin slices'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0585
_diffrn_reflns_av_unetI/netI     0.08
_diffrn_reflns_limit_h_max       14
_diffrn_reflns_limit_h_min       -14
_diffrn_reflns_limit_k_max       4
_diffrn_reflns_limit_k_min       -4
_diffrn_reflns_limit_l_max       28
_diffrn_reflns_limit_l_min       -26
_diffrn_reflns_number            5968
_diffrn_reflns_theta_full        27.43
_diffrn_reflns_theta_max         27.43
_diffrn_reflns_theta_min         3.63
_exptl_absorpt_coefficient_mu    0.091
_exptl_absorpt_correction_T_max  0.997
_exptl_absorpt_correction_T_min  0.820
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
  [Sheldrick, G.M. (2002). SADABS Bruker AXS Inc., Madison, Wisconsin, USA]
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.42
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.15
_exptl_crystal_size_mid          0.12
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.237
_refine_diff_density_min         -0.215
_refine_diff_density_rms         0.058
_refine_ls_extinction_coef       0.021(4)
_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   0.987
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     137
_refine_ls_number_reflns         2081
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.987
_refine_ls_R_factor_all          0.0999
_refine_ls_R_factor_gt           0.0533
_refine_ls_shift/su_max          0.02
_refine_ls_shift/su_mean         0.002
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0597P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1134
_refine_ls_wR_factor_ref         0.1374
_reflns_number_gt                1241
_reflns_number_total             2081
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ob42380h.txt
_cod_data_source_block           1f
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               7153623