Study of Halogen-Mediated Weak Interactions in a Series of Halogen-Substituted Azobenzenes
Karanam, Maheswararao; Choudhury, Angshuman Roy; Crystal Growth & Design 13 (2013) 4803–; doi:10.1021/cg400967k

data_4508436
_publ_section_title
;
 Study of Halogen-Mediated Weak Interactions in a Series of
 Halogen-Substituted Azobenzenes
;
_journal_issue                   11
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              4803
_journal_paper_doi               10.1021/cg400967k
_journal_volume                  13
_journal_year                    2013
_chemical_formula_moiety         'C12 H8 Cl2 N2'
_chemical_formula_sum            'C12 H8 Cl2 N2'
_chemical_formula_weight         251.1
_chemical_name_systematic
;
 (E)-bis(4-chlorophenyl)diazene 
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2ybc'
_space_group_name_H-M_alt        'P 1 21/c 1'
_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_date             2012-05-18T18:17:18-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 91.138(7)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.7663(10)
_cell_length_b                   4.6720(5)
_cell_length_c                   11.4452(13)
_cell_measurement_reflns_used    3110
_cell_measurement_temperature    100
_cell_measurement_theta_max      35.023
_cell_measurement_theta_min      3.561
_cell_volume                     522.12(10)
_computing_data_reduction        'SAINT v7.68A (Bruker, 2009)'
_computing_molecular_graphics
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
        J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_publication_material
;
O. V. Dolomanov, L. J. Bourhis, R. J. Gildea, J. A. K. Howard and H. Puschmann,
OLEX2: a complete structure solution, refinement and analysis program.
        J. Appl. Cryst. (2009). 42, 339-341.
;
_computing_structure_refinement
;
        SHELXL, G.M. Sheldrick, Acta Cryst.
        2008). A64, 112-122
;
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      100
_diffrn_detector_area_resol_mean 8
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker SMART APEX CCD area detector'
_diffrn_measurement_method       '\w and \f scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0201
_diffrn_reflns_limit_h_max       13
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -6
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            4584
_diffrn_reflns_theta_full        28.28
_diffrn_reflns_theta_max         28.28
_diffrn_reflns_theta_min         2.09
_diffrn_source                   'sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.589
_exptl_absorpt_correction_T_max  0.7471
_exptl_absorpt_correction_T_min  0.6823
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
        SADABS-2008/1 (Bruker,2008) was used for absorption correction.
        R(int) was 0.0410 before and 0.0323 after correction.
        The Ratio of minimum to maximum transmission is 0.9133.
        The \l/2 correction factor is 0.0015.
;
_exptl_crystal_colour            'clear light yellow'
_exptl_crystal_density_diffrn    1.597
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             256
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.2
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.417
_refine_diff_density_min         -0.25
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.075
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     73
_refine_ls_number_reflns         1295
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.075
_refine_ls_R_factor_all          0.0291
_refine_ls_R_factor_gt           0.0269
_refine_ls_shift/su_max          0
_refine_ls_shift/su_mean         0
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0267P)^2^+0.4148P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0655
_refine_ls_wR_factor_ref         0.0685
_reflns_number_gt                1207
_reflns_number_total             1295
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg400967k_si_002.cif
_cod_data_source_block           az05_100k_0m
_cod_database_code               4508436