Donor-Acceptor Triazenes: Synthesis, Characterization, and Study of Their Electronic and Thermal Properties
Dimitri M. Khramov; Christopher W. Bielawski; Journal of Organic Chemistry 72 (2007) 9407–9417; doi:10.1021/jo070789x

data_4022961
_publ_section_title
;
 Donor-Acceptor Triazenes: Synthesis, Characterization,
 and Study of Their Electronic and Thermal Properties
;
_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              9407
_journal_page_last               9417
_journal_paper_doi               10.1021/jo070789x
_journal_volume                  72
_journal_year                    2007
_chemical_formula_sum            'C17 H18 N6 O4'
_chemical_formula_weight         370.37
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.197(2)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.9005(4)
_cell_length_b                   7.5544(3)
_cell_length_c                   25.4468(12)
_cell_measurement_reflns_used    3204
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25
_cell_measurement_theta_min      1
_cell_volume                     1710.98(13)
_computing_cell_refinement       'Collect software, Nonius B.V. 1998'
_computing_data_collection       'Collect software, Nonius B.V. 1998'
_computing_data_reduction
;
DENZO and Scalepack (Otwinoski and Minor, 1997)
;
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_structure_refinement  'XL SHELXTL/PC, Siemens Analytical'
_computing_structure_solution
;

SIR97 - Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C., 
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
;
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       \w-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  0.1049
_diffrn_reflns_av_sigmaI/netI    0.1719
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       30
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            5428
_diffrn_reflns_theta_full        24.95
_diffrn_reflns_theta_max         24.95
_diffrn_reflns_theta_min         2.81
_exptl_absorpt_coefficient_mu    0.106
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            plates
_exptl_crystal_density_diffrn    1.438
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       ' dark orange '
_exptl_crystal_F_000             776
_exptl_crystal_size_max          0.36
_exptl_crystal_size_mid          0.24
_exptl_crystal_size_min          0.15
_refine_diff_density_max         0.229
_refine_diff_density_min         -0.222
_refine_diff_density_rms         0.053
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.063
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     248
_refine_ls_number_reflns         2978
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.063
_refine_ls_R_factor_all          0.1916
_refine_ls_R_factor_gt           0.0527
_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^)+(0.0200P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0831
_refine_ls_wR_factor_ref         0.1060
_reflns_number_gt                1205
_reflns_number_total             2978
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            jo070789xsi20070418_070137_2.cif
_cod_data_source_block           2meono2
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               4022961