Exclusivity of the <i>sp</i> Rotamers of 9-(<i>o</i>-<i>tert</i>-Butylphenyl)fluorene and 9-(<i>o</i>-<i>tert</i>-Butylphenyl)-9-fluorenol in Solution and the Crystalline State
Robinson, Paul D.; Hou, Yuqing; Lutfi, Hisham G.; Meyers, Cal Y.; Acta Crystallographica Section C 54 (1998) 73–77; doi:10.1107/S0108270197012638

data_2006921
_publ_section_title
;
 Exclusivity of the <i>sp</i> Rotamers of
 9-(<i>o</i>-<i>tert</i>-Butylphenyl)fluorene and
 9-(<i>o</i>-<i>tert</i>-Butylphenyl)-9-fluorenol in Solution and the
 Crystalline State
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              73
_journal_page_last               77
_journal_paper_doi               10.1107/S0108270197012638
_journal_volume                  54
_journal_year                    1998
_chemical_formula_moiety         'C23 H22'
_chemical_formula_sum            'C23 H22'
_chemical_formula_weight         298.43
_chemical_name_systematic
;
sp-9-(o-tert-butylphenyl)fluorene
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   10.7211(11)
_cell_length_b                   15.186(2)
_cell_length_c                   10.4816(8)
_cell_measurement_reflns_used    24
_cell_measurement_temperature    296
_cell_measurement_theta_max      13.71
_cell_measurement_theta_min      12.84
_cell_volume                     1706.5(3)
_computing_cell_refinement       'MSC/AFC Diffractometer Control Software'
_computing_data_collection
;MSC/AFC Diffractometer Control Software (Molecular Structure Corporation,
 1996)
;
_computing_data_reduction
'TEXSAN PROCESS  (Molecular Structure Corporation, 1995)'
_computing_molecular_graphics    'TEXSAN ORTEP (Johnson, 1965)'
_computing_publication_material  'TEXSAN, SHELXL93, and PLATON (Spek, 1990)'
_computing_structure_refinement  'TEXSAN LS and SHELXL93 (Sheldrick, 1993)'
_computing_structure_solution    'TEXSAN SHELXS86 (Sheldrick, 1985)'
_diffrn_ambient_temperature      296
_diffrn_measurement_device_type  'Rigaku AFC-5S diffractometer'
_diffrn_measurement_method       '\w (rate 4\% min^-1^ in \w)'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71069
_diffrn_reflns_av_R_equivalents  0.016
_diffrn_reflns_limit_h_max       15
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       21
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       14
_diffrn_reflns_limit_l_min       -2
_diffrn_reflns_number            3351
_diffrn_reflns_theta_max         30.04
_diffrn_reflns_theta_min         2.33
_diffrn_standards_decay_%        0.20
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.065
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.162
_exptl_crystal_density_meas      ?
_exptl_crystal_description       block
_exptl_crystal_F_000             640
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.35
_refine_diff_density_max         0.166
_refine_diff_density_min         -0.149
_refine_ls_abs_structure_details 'not determined'
_refine_ls_extinction_coef       0.0062(17)
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_all   1.003
_refine_ls_goodness_of_fit_obs   1.090
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     216
_refine_ls_number_reflns         2817
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.003
_refine_ls_restrained_S_obs      1.090
_refine_ls_R_factor_all          0.1041
_refine_ls_R_factor_gt           0.0380
_refine_ls_shift/esd_max         0.000
_refine_ls_shift/esd_mean        0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0512P)^2^+0.1746P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1225
_refine_ls_wR_factor_ref         0.0960
_reflns_number_gt                1560
_reflns_number_total             2817
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            fg1380.cif
_cod_data_source_block           2
_cod_depositor_comments
;
The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'not measured' was changed to '?'
- the value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_database_code               2006921