Synthesis of heterocyclic (triazole, furoxan, furazan) fused pyridazine di-N-oxides via hypervalent iodine oxidation
Zhang, Qi; He, Chunlin; Pang, Siping; New Journal of Chemistry 46 (2022) 14324–14327; doi:10.1039/D2NJ02908A

data_7061656
_publ_section_title
;
 Synthesis of heterocyclic (triazole, furoxan, furazan) fused pyridazine
 di-N-oxides via hypervalent iodine oxidation
;
_journal_issue                   30
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              14324
_journal_page_last               14327
_journal_paper_doi               10.1039/D2NJ02908A
_journal_volume                  46
_journal_year                    2022
_chemical_formula_moiety         'C4 Cl2 N4 O3'
_chemical_formula_sum            'C4 Cl2 N4 O3'
_chemical_formula_weight         222.98
_space_group_crystal_system      orthorhombic
_space_group_IT_number           61
_space_group_name_Hall           '-P 2ac 2ab'
_space_group_name_H-M_alt        'P b c a'
_atom_sites_solution_primary     dual
_audit_creation_date             2021-11-26
_audit_creation_method
;
Olex2 1.2
(compiled 2018.05.29 svn.r3508 for OlexSys, GUI svn.r5506)
;
_audit_update_record
;
2022-05-30 deposited with the CCDC.	2022-07-11 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            16
_cell_length_a                   8.9927(5)
_cell_length_b                   15.7743(9)
_cell_length_c                   21.8858(14)
_cell_measurement_reflns_used    6722
_cell_measurement_temperature    150
_cell_measurement_theta_max      26.32
_cell_measurement_theta_min      2.75
_cell_volume                     3104.6(3)
_computing_cell_refinement       'SAINT V8.40A (?, 2016)'
_computing_data_reduction        'SAINT V8.40A (?, 2016)'
_computing_molecular_graphics    'Olex2 (Dolomanov et al., 2009)'
_computing_publication_material  'Olex2 (Dolomanov et al., 2009)'
_computing_structure_refinement  'ShelXL (Sheldrick, 2015)'
_computing_structure_solution    'ShelXT (Sheldrick, 2015)'
_diffrn_ambient_temperature      150.0
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  'D8 VENTURE'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0511
_diffrn_reflns_av_unetI/netI     0.0286
_diffrn_reflns_Laue_measured_fraction_full 0.996
_diffrn_reflns_Laue_measured_fraction_max 0.993
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       27
_diffrn_reflns_limit_l_min       -27
_diffrn_reflns_number            26541
_diffrn_reflns_point_group_measured_fraction_full 0.996
_diffrn_reflns_point_group_measured_fraction_max 0.993
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         26.431
_diffrn_reflns_theta_min         2.745
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.813
_exptl_absorpt_correction_T_max  0.7454
_exptl_absorpt_correction_T_min  0.6419
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
SADABS-2016/2 (Bruker,2016/2) was used for absorption correction.
wR2(int) was 0.0880 before and 0.0541 after correction.
The Ratio of minimum to maximum transmission is 0.8611.
The \l/2 correction factor is Not present.
;
_exptl_crystal_colour            colourless
_exptl_crystal_colour_primary    colourless
_exptl_crystal_density_diffrn    1.908
_exptl_crystal_description       block
_exptl_crystal_F_000             1760
_exptl_crystal_size_max          0.12
_exptl_crystal_size_mid          0.08
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.919
_refine_diff_density_min         -0.925
_refine_diff_density_rms         0.073
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.027
_refine_ls_hydrogen_treatment    undef
_refine_ls_matrix_type           full
_refine_ls_number_parameters     316
_refine_ls_number_reflns         3177
_refine_ls_number_restraints     582
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0730
_refine_ls_R_factor_gt           0.0539
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0502P)^2^+7.8604P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1243
_refine_ls_wR_factor_ref         0.1393
_reflns_Friedel_coverage         0.000
_reflns_number_gt                2489
_reflns_number_total             3177
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            d2nj02908a2.cif
_cod_data_source_block           mo_20211664_0m
_cod_depositor_comments
'Adding full bibliography for 7061650--7061656.cif.'
_cod_database_code               7061656
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_max   0.960
_shelx_estimated_absorpt_t_min   0.909
_olex2_refinement_description
;
1. Restrained distances
 N4-N3
 1.4 with sigma of 0.02
 C2-C1 \\sim C7-C6 \\sim C8-C10
 with sigma of 0.02
 C5-C6 \\sim C9-C10 \\sim C2-C1
 with sigma of 0.02
2. Rigid bond restraints
 All non-hydrogen atoms
 with sigma for 1-2 distances of 0.01 and sigma for 1-3 distances of 0.01
3. Uiso/Uaniso restraints and constraints
All non-hydrogen atoms have similar U: within 2A with sigma of 0.04 and sigma
for terminal atoms of 0.08
Uanis(O5) \\sim Ueq, Uanis(O6) \\sim Ueq, Uanis(N10) \\sim Ueq, Uanis(N12)
\\sim Ueq, Uanis(C10) \\sim Ueq, Uanis(C6) \\sim Ueq: with sigma of 0.005 and
sigma for terminal atoms of 0.01
Uanis(N5) \\sim Ueq: with sigma of 0.005 and sigma for terminal atoms of 0.01
Uanis(C7) \\sim Ueq: with sigma of 0.005 and sigma for terminal atoms of 0.01
4. Others
 Fixed Sof: O7(0.5) N12(0.5) O6(0.5) O5(0.5) O9(0.5) C5(0.5) N10(0.5) N5(0.5)
 N6(0.5) O8(0.5) N8(0.5) N11(0.5) N9(0.5) N7(0.5) C8(0.5) C7(0.5) O4(0.5)
 C9(0.5)
;
_olex2_submission_special_instructions 'No special instructions were received'