Synthesis of pyrazole (hemi)aminals via the cleavage of saturated aliphatic ether C‒O bonds in the presence of ferric halides
Govor, Evgen V.; Sanakis, Yiannis; Raptis, Raphael G.; New J. Chem. 41 (2017) 2220–; doi:10.1039/C6NJ03822K

data_7055981
_publ_section_title
;
 Synthesis of pyrazole (hemi)aminals via the cleavage of saturated
 aliphatic ether C--O bonds in the presence of ferric halides
;
_journal_issue                   6
_journal_name_full               'New J. Chem.'
_journal_page_first              2220
_journal_paper_doi               10.1039/C6NJ03822K
_journal_volume                  41
_journal_year                    2017
_chemical_formula_sum            'C12 H16 Br2 Cl2 Fe N4'
_chemical_formula_weight         502.86
_chemical_name_systematic
; 
 ? 
;
_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
_audit_update_record
;
2013-06-02 deposited with the CCDC.
2017-01-30 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 92.4070(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   12.1777(13)
_cell_length_b                   8.7316(9)
_cell_length_c                   17.3452(18)
_cell_measurement_temperature    296(2)
_cell_volume                     1842.7(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_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  0.0431
_diffrn_reflns_av_sigmaI/netI    0.0353
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       -15
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            19914
_diffrn_reflns_theta_full        27.09
_diffrn_reflns_theta_max         27.09
_diffrn_reflns_theta_min         2.00
_exptl_absorpt_coefficient_mu    5.443
_exptl_absorpt_correction_T_max  0.3110
_exptl_absorpt_correction_T_min  0.1932
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   SADABS
_exptl_crystal_colour            light-blue
_exptl_crystal_density_diffrn    1.813
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             984
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.36
_exptl_crystal_size_min          0.28
_refine_diff_density_max         0.531
_refine_diff_density_min         -1.016
_refine_diff_density_rms         0.125
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     195
_refine_ls_number_reflns         4050
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.046
_refine_ls_R_factor_all          0.0565
_refine_ls_R_factor_gt           0.0412
_refine_ls_shift/su_max          0.007
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0457P)^2^+2.1565P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0952
_refine_ls_wR_factor_ref         0.1018
_reflns_number_gt                3201
_reflns_number_total             4050
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c6nj03822k2.cif
_cod_data_source_block           evg084_0m
_cod_depositor_comments
'Adding full bibliography for 7055976--7055983.cif.'
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               7055981