Isomeric and chemical consequences of the direct magnesiation of 1,3-benzoazoles using β-diketiminate-stabilized magnesium bases
Baillie, Sharon E.; Blair, Victoria L.; Bradley, Tyne D.; Clegg, William; Cowan, Jemma; Harrington, Ross W.; Hernán-Gómez, Alberto; Kennedy, Alan R.; Livingstone, Zoe; Hevia, Eva; Chemical Science 4 (2013) 1895–; doi:10.1039/c3sc22326d

data_1514441
_publ_section_title
;
 Isomeric and chemical consequences of the direct magnesiation of
 1,3-benzoazoles using \b-diketiminate-stabilized magnesium bases
;
_journal_issue                   4
_journal_name_full               'Chemical Science'
_journal_page_first              1895
_journal_paper_doi               10.1039/c3sc22326d
_journal_volume                  4
_journal_year                    2013
_chemical_formula_sum            'C80 H110 Mg2 N8'
_chemical_formula_weight         1232.38
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.01(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   12.703(3)
_cell_length_b                   21.654(5)
_cell_length_c                   13.282(3)
_cell_measurement_reflns_used    787
_cell_measurement_temperature    123(2)
_cell_measurement_theta_max      29.1840
_cell_measurement_theta_min      3.0612
_cell_volume                     3653.5(15)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      123(2)
_diffrn_measured_fraction_theta_full 0.841
_diffrn_measured_fraction_theta_max 0.841
_diffrn_measurement_device_type  'Oxford Diffraction Xcalibur E'
_diffrn_measurement_method       '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  0.1131
_diffrn_reflns_av_sigmaI/netI    0.2776
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       25
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            9900
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         3.07
_exptl_absorpt_coefficient_mu    0.081
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.70154
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.40 (release 27-08-2010 CrysAlis171 .NET)
(compiled Aug 27 2010,11:50:40)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.120
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             1340
_exptl_crystal_size_max          0.18
_exptl_crystal_size_mid          0.02
_exptl_crystal_size_min          0.02
_refine_diff_density_max         0.290
_refine_diff_density_min         -0.283
_refine_diff_density_rms         0.063
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     429
_refine_ls_number_reflns         5404
_refine_ls_number_restraints     36
_refine_ls_restrained_S_all      1.023
_refine_ls_R_factor_all          0.2566
_refine_ls_R_factor_gt           0.0995
_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^)+(0.0368P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1516
_refine_ls_wR_factor_ref         0.2343
_reflns_number_gt                1931
_reflns_number_total             5404
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            c3sc22326d.txt
_cod_data_source_block           sebtyne3
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               1514441