An interesting 1,4,2,5-dioxadiazine-furazan system: structural modification by incorporating versatile functionalities
Yu, Qiong; Cheng, Guangbin; Ju, Xuehai; Lu, Chunxu; Lin, Qiuhan; Yang, Hongwei; Dalton Trans.  (2017) –; doi:10.1039/C7DT02098H

data_7044286
_publ_section_title
;
 An interesting 1,4,2,5-dioxadiazine-furazan system: structural
 modification by incorporating versatile functionalities
;
_journal_name_full               'Dalton Trans.'
_journal_paper_doi               10.1039/C7DT02098H
_journal_year                    2017
_chemical_formula_moiety         'C10 H4 N16 O20'
_chemical_formula_sum            'C10 H4 N16 O20'
_chemical_formula_weight         668.29
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_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_creation_method           SHELXL-97
_audit_update_record
;
2016-05-03 deposited with the CCDC.
2017-09-19 downloaded from the CCDC.
;
_cell_angle_alpha                90.00
_cell_angle_beta                 94.787(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   17.477(3)
_cell_length_b                   6.0354(7)
_cell_length_c                   21.647(3)
_cell_measurement_reflns_used    1559
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      25.25
_cell_measurement_theta_min      3.13
_cell_volume                     2275.4(6)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 0.985
_diffrn_measured_fraction_theta_max 0.985
_diffrn_measurement_device_type  'PHOTON100 CMOS detector'
_diffrn_measurement_method       'omega scan'
_diffrn_radiation_monochromator  'TRIUMPH curved crystal monochromator'
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1481
_diffrn_reflns_av_sigmaI/netI    0.1487
_diffrn_reflns_limit_h_max       20
_diffrn_reflns_limit_h_min       -20
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -7
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -25
_diffrn_reflns_number            12671
_diffrn_reflns_theta_full        24.50
_diffrn_reflns_theta_max         24.50
_diffrn_reflns_theta_min         3.13
_exptl_absorpt_coefficient_mu    0.190
_exptl_absorpt_correction_T_max  0.7452
_exptl_absorpt_correction_T_min  0.5610
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2013)'
_exptl_crystal_density_diffrn    1.951
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             1344
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.04
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.335
_refine_diff_density_min         -0.331
_refine_diff_density_rms         0.075
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.011
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     415
_refine_ls_number_reflns         3716
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.011
_refine_ls_R_factor_all          0.1743
_refine_ls_R_factor_gt           0.0607
_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^)+(0.0168P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0737
_refine_ls_wR_factor_ref         0.0959
_reflns_number_gt                1792
_reflns_number_total             3716
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c7dt02098h2.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to
/home/data/users/saulius/crontab/automatic-downloads/rss-feeds/RSC/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 4973 2017-02-22 13:04:09Z antanas 
;
_cod_original_cell_volume        2275.3(5)
_cod_original_sg_symbol_Hall     '-P 2ybc  '
_cod_original_sg_symbol_H-M      'P2(1)/c  '
_cod_database_code               7044286