1-Diphenylmethylene-2-(9<i>H</i>-fluoren-9-ylidene)hydrazine
Archana, R.; Anbazhagan, R.; Sankaran, K. R.; Thiruvalluvar, A.; Butcher, R. J.; Acta Crystallographica Section E 66 (2010) o345–; doi:10.1107/S160053681000070X

data_2225127
_publ_section_title
;
 1-Diphenylmethylene-2-(9<i>H</i>-fluoren-9-ylidene)hydrazine
;
_journal_coeditor_code           TK2612
_journal_issue                   2
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o345
_journal_paper_doi               10.1107/S160053681000070X
_journal_volume                  66
_journal_year                    2010
_chemical_formula_iupac          'C26 H18 N2'
_chemical_formula_moiety         'C26 H18 N2'
_chemical_formula_structural     'C26 H18 N2'
_chemical_formula_sum            'C26 H18 N2'
_chemical_formula_weight         358.42
_chemical_melting_point          377
_chemical_name_common            hydrazine
_chemical_name_systematic
;
1-Diphenylmethylene-2-(9<i>H</i>-fluoren-9-ylidene)hydrazine
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 92.8740(10)
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   22.8362(3)
_cell_length_b                   13.1432(2)
_cell_length_c                   12.4642(2)
_cell_measurement_reflns_used    4987
_cell_measurement_temperature    110(2)
_cell_measurement_theta_max      73.8931
_cell_measurement_theta_min      5.1161
_cell_volume                     3736.31(10)
_computing_cell_refinement       'CrysAlis Pro (Oxford Diffraction, 2009)'
_computing_data_collection       'CrysAlis Pro (Oxford Diffraction, 2009)'
_computing_data_reduction        'CrysAlis Pro (Oxford Diffraction, 2009)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  'PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      110(2)
_diffrn_detector_area_resol_mean 10.5081
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.966
_diffrn_measurement_device_type
'Oxford Xcalibur diffractometer with a Ruby Gemini detector'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Cu) X-ray Source'
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54184
_diffrn_reflns_av_R_equivalents  0.0185
_diffrn_reflns_av_sigmaI/netI    0.0198
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -27
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            7177
_diffrn_reflns_theta_full        67.50
_diffrn_reflns_theta_max         74.07
_diffrn_reflns_theta_min         5.20
_exptl_absorpt_coefficient_mu    0.577
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.95503
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(CrysAlis Pro; Oxford Diffraction, 2009)'
_exptl_crystal_colour            pale-yellow
_exptl_crystal_density_diffrn    1.274
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       chunk
_exptl_crystal_F_000             1504
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.41
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.231
_refine_diff_density_min         -0.203
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     253
_refine_ls_number_reflns         3682
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.055
_refine_ls_R_factor_all          0.0439
_refine_ls_R_factor_gt           0.0370
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_max_lt       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^)+(0.0563P)^2^+1.6279P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0981
_refine_ls_wR_factor_ref         0.1022
_reflns_number_gt                3147
_reflns_number_total             3682
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            tk2612.cif
_cod_data_source_block           I
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2225127
_cod_database_fobs_code          2225127