Intramolecularly coordinated azobenzene selenium derivatives: effect of strength of the Se···N intramolecular interaction on luminescence.
Srivastava, Kriti; Chakraborty, Tapash; Singh, Harkesh B.; Butcher, Ray J.; Dalton transactions (Cambridge, England : 2003) 40 (2011) 4489–4496; doi:10.1039/c0dt01319f

data_7015185
_publ_section_title
;
 Intramolecularly coordinated azobenzene selenium derivatives: effect
 of strength of the Se&#x00B7;&#x00B7;&#x00B7;N intramolecular
 interaction on luminescence.
;
_journal_issue                   17
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              4489
_journal_page_last               4496
_journal_paper_doi               10.1039/c0dt01319f
_journal_volume                  40
_journal_year                    2011
_chemical_formula_moiety         'C12 H9 Br N2 Se'
_chemical_formula_sum            'C12 H9 Br N2 Se'
_chemical_formula_weight         340.08
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 90.843(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.0040(3)
_cell_length_b                   15.4165(8)
_cell_length_c                   15.0856(5)
_cell_measurement_reflns_used    3398
_cell_measurement_temperature    200(2)
_cell_measurement_theta_max      32.5547
_cell_measurement_theta_min      4.7994
_cell_volume                     1163.64(10)
_computing_cell_refinement
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.15 (release 10-01-2008 CrysAlis171 .NET)
(compiled Jan 10 2008,16:37:18)
;
_computing_data_collection
;
CrysAlis CCD, Oxford Diffraction Ltd.,
Version 1.171.32.15 (release 10-01-2008 CrysAlis171 .NET)
(compiled Jan 10 2008,16:37:18)
;
_computing_data_reduction
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.15 (release 10-01-2008 CrysAlis171 .NET)
(compiled Jan 10 2008,16:37:18)
;
_computing_molecular_graphics    SHELXTL
_computing_publication_material  SHELXTL
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      200(2)
_diffrn_detector_area_resol_mean 10.5081
_diffrn_measured_fraction_theta_full 0.988
_diffrn_measured_fraction_theta_max 0.867
_diffrn_measurement_device_type  'Oxford Diffraction Gemini'
_diffrn_measurement_method       '\f and \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  0.0433
_diffrn_reflns_av_sigmaI/netI    0.0907
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       22
_diffrn_reflns_limit_k_min       -23
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -21
_diffrn_reflns_number            9770
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         33.10
_diffrn_reflns_theta_min         4.80
_diffrn_standards_decay_%        <2%
_diffrn_standards_interval_count 50
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    6.632
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.32265
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis RED, Oxford Diffraction Ltd.,
Version 1.171.32.15 (release 10-01-2008 CrysAlis171 .NET)
(compiled Jan 10 2008,16:37:18)
Empirical absorption correction using spherical harmonics,
implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            'dark green'
_exptl_crystal_density_diffrn    1.941
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       needle
_exptl_crystal_F_000             656
_exptl_crystal_size_max          0.53
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.564
_refine_diff_density_min         -0.614
_refine_diff_density_rms         0.094
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.840
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     145
_refine_ls_number_reflns         3831
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.840
_refine_ls_R_factor_all          0.0820
_refine_ls_R_factor_gt           0.0327
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0233P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0526
_refine_ls_wR_factor_ref         0.0571
_reflns_number_gt                2144
_reflns_number_total             3831
_reflns_threshold_expression     I>2\s(I)
_cod_duplicate_entry             7015184
_cod_data_source_file            c0dt01319f.txt
_cod_data_source_block           azo-sebr
_cod_database_code               7015185