The structure, modelling and dynamics of hindered 5,6-diarylacenaphthenes
Cross, Wendy; Hawkes, Geoffrey E.; Kroemer, Romano T.; Liedl, Klaus R.; Loerting, Thomas; Nasser, Rima; Pritchard, Robin G.; Steele, Melanie; Watkinson, Michael; Whiting, Andrew; Journal of the Chemical Society, Perkin Transactions 2  (2001) 459–; doi:10.1039/b008788m

data_7213452
_publ_section_title
;
 The structure, modelling and dynamics of hindered 5,6-diarylacenaphthenes
;
_journal_issue                   4
_journal_name_full
'Journal of the Chemical Society, Perkin Transactions 2'
_journal_page_first              459
_journal_paper_doi               10.1039/b008788m
_journal_year                    2001
_chemical_formula_sum            'C17 H19 O'
_chemical_formula_weight         239.32
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 108.59(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            8
_cell_length_a                   15.426(11)
_cell_length_b                   12.426(10)
_cell_length_c                   15.224(10)
_cell_measurement_temperature    293(2)
_cell_volume                     2766(4)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.471
_diffrn_measured_fraction_theta_max 0.471
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.0644
_diffrn_reflns_av_sigmaI/netI    0.0844
_diffrn_reflns_limit_h_max       18
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -18
_diffrn_reflns_number            2548
_diffrn_reflns_theta_full        25.12
_diffrn_reflns_theta_max         25.12
_diffrn_reflns_theta_min         2.15
_exptl_absorpt_coefficient_mu    0.069
_exptl_absorpt_correction_T_max  0.9795
_exptl_absorpt_correction_T_min  0.9795
_exptl_crystal_colour            Colourless
_exptl_crystal_density_diffrn    1.149
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.230
_refine_diff_density_min         -0.165
_refine_diff_density_rms         0.042
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.985
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         2451
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.985
_refine_ls_R_factor_all          0.1403
_refine_ls_R_factor_gt           0.0522
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0743P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1235
_refine_ls_wR_factor_ref         0.1627
_reflns_number_gt                1288
_reflns_number_total             2451
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b008788msup1.cif
_cod_data_source_block           mw97a
_cod_depositor_comments
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The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc
w=1/[\s^2^(Fo^2^)+(0.0743P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3' was
changed to 'calc'. New tag '_refine_ls_weighting_details' was
created. The value of the new tag was set to
'w=1/[\s^2^(Fo^2^)+(0.0743P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_original_cell_volume        2766(3)
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               7213452