A polymorph of 1,2,3,4-tetraphenylnaphthalene
Ojala, W.H.; Gustafson, H.L.; Ojala, C.R.; Acta Crystallographica Section C 50 (1994) 1602–1604; doi:10.1107/S010827019301371X

data_2010081
_publ_section_title
;
 A polymorph of 1,2,3,4-tetraphenylnaphthalene
;
_journal_issue                   10
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1602
_journal_page_last               1604
_journal_paper_doi               10.1107/S010827019301371X
_journal_volume                  50
_journal_year                    1994
_chemical_formula_moiety         'C34 H24'
_chemical_formula_sum            'C34 H24'
_chemical_formula_weight         432.56
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_type_scat_source           IntTabIV
_cell_angle_alpha                90.
_cell_angle_beta                 110.60(2)
_cell_angle_gamma                90.
_cell_formula_units_Z            12
_cell_length_a                   33.057(7)
_cell_length_b                   11.842(3)
_cell_length_c                   19.777(4)
_cell_measurement_reflns_used    24
_cell_measurement_temperature    173
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      20.0
_cell_volume                     7247(3)
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.077
_diffrn_reflns_limit_h_max       40
_diffrn_reflns_limit_h_min       -32
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            11225
_diffrn_reflns_theta_max         70.0
_diffrn_standards_decay_%        'no correction applied'
_diffrn_standards_interval_time  60
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.476
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.189
_exptl_crystal_description       'elongated prism'
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.1
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.20
_refine_diff_density_min         -0.21
_refine_ls_extinction_coef       0.23947E-6
_refine_ls_extinction_method     'not applied'
_refine_ls_goodness_of_fit_obs   1.65
_refine_ls_hydrogen_treatment    noref
_refine_ls_number_parameters     460
_refine_ls_number_reflns         5015
_refine_ls_R_factor_obs          0.043
_refine_ls_shift/esd_max         0.00
_refine_ls_structure_factor_coef F
_refine_ls_weighting_details     'w = 4F~o~^2^/\s^2^(F~o~^2^)'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_obs         0.056
_reflns_number_observed          5015
_reflns_number_total             7229
_reflns_observed_criterion       I>3\s(I)
_cod_data_source_file            bk1003.cif
_cod_data_source_block           bk1003_structure_1_of_1
_cod_depositor_comments
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The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value '4F~o~^2^/\s^2^(F~o~^2^)' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to 'w =
4F~o~^2^/\s^2^(F~o~^2^)'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        7247(6)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               2010081