2,7-Bis(3,4-dicyanophenoxy)naphthalene
Ocak, Nazan; Işık, Şamil; Akdemir, Nesuhi; Ağar, Erbil; Gümrükçüoğlu, Ismail Erdem; Acta Crystallographica Section E 60 (2004) o435–o436; doi:10.1107/S1600536804003630

data_2203366
_publ_section_title
;
 2,7-Bis(3,4-dicyanophenoxy)naphthalene
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o435
_journal_page_last               o436
_journal_paper_doi               10.1107/S1600536804003630
_journal_volume                  60
_journal_year                    2004
_chemical_formula_iupac          'C26 H12 N4 O2'
_chemical_formula_moiety         'C26 H12 N4 O2'
_chemical_formula_sum            'C26 H12 N4 O2'
_chemical_formula_weight         412.40
_chemical_name_common            2,7-Bis(3',4'-dicyanophenoxy)naphthalene
_chemical_name_systematic
;
4,4'-Naphthalene-2,7-dioxydibenzene-1,2-dicarbonitrile
;
_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
_cell_angle_alpha                90.00
_cell_angle_beta                 97.400(9)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.3592(10)
_cell_length_b                   7.5300(5)
_cell_length_c                   31.368(3)
_cell_measurement_reflns_used    8818
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      25.7
_cell_measurement_theta_min      2.0
_cell_volume                     1958.0(3)
_computing_cell_refinement       X-AREA
_computing_data_collection       'X-AREA (Stoe & Cie, 2002)'
_computing_data_reduction        'X-RED (Stoe & Cie, 2002)'
_computing_molecular_graphics    'ORTEPIII (Burnett & Johnson, 1996)'
_computing_publication_material
'WinGX (Farrugia, 1997) and PARST (Nardelli, 1995)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 6.67
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Stoe IPDS-2'
_diffrn_measurement_method       \w
_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  0.064
_diffrn_reflns_av_sigmaI/netI    0.059
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       38
_diffrn_reflns_limit_l_min       -38
_diffrn_reflns_number            21357
_diffrn_reflns_theta_full        26.0
_diffrn_reflns_theta_max         26.0
_diffrn_reflns_theta_min         2.5
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.09
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.399
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prismatic
_exptl_crystal_F_000             848
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.07
_refine_diff_density_max         0.13
_refine_diff_density_min         -0.13
_refine_ls_extinction_coef       0.0097(8)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL97
_refine_ls_goodness_of_fit_ref   0.77
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     290
_refine_ls_number_reflns         3856
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.77
_refine_ls_R_factor_all          0.090
_refine_ls_R_factor_gt           0.036
_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^)+(0.0424P)^2^] where P = (Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.074
_refine_ls_wR_factor_ref         0.084
_reflns_number_gt                1929
_reflns_number_total             3856
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ya6196.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'P 21/n'
_cod_database_code               2203366
_cod_database_fobs_code          2203366