Syntheses and characterization of bis(trifluoromethyl)phosphino naphthalenes and acenaphthenes.
Wawrzyniak, Piotr; Slawin, Alexandra M. Z.; Woollins, J. Derek; Kilian, Petr; Dalton transactions (Cambridge, England : 2003) 39 (2010) 85–92; doi:10.1039/b916425a

data_7024390
_publ_section_title
;
 Syntheses and characterization of bis(trifluoromethyl)phosphino
 naphthalenes and acenaphthenes.
;
_journal_issue                   1
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              85
_journal_page_last               92
_journal_paper_doi               10.1039/b916425a
_journal_volume                  39
_journal_year                    2010
_chemical_formula_sum            'C24 H18 Br O2 P'
_chemical_formula_weight         449.26
_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'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2718(9)
_cell_length_b                   8.0587(9)
_cell_length_c                   33.861(4)
_cell_measurement_reflns_used    5411
_cell_measurement_temperature    93(2)
_cell_measurement_theta_max      21.96
_cell_measurement_theta_min      2.33
_cell_volume                     1984.3(4)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2004)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2004)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      93(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.991
_diffrn_measurement_device_type  CCD
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_monochromator  confocal
_diffrn_radiation_source         'rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.1543
_diffrn_reflns_av_sigmaI/netI    0.0822
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       36
_diffrn_reflns_limit_l_min       -40
_diffrn_reflns_number            16844
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.34
_diffrn_reflns_theta_min         1.20
_exptl_absorpt_coefficient_mu    2.169
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.8640
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'Jacobson, R. (1998) Private communication'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.504
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       platelet
_exptl_crystal_F_000             912
_exptl_crystal_size_max          0.100
_exptl_crystal_size_mid          0.100
_exptl_crystal_size_min          0.010
_refine_diff_density_max         1.453
_refine_diff_density_min         -1.335
_refine_diff_density_rms         0.253
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   0.06(3)
_refine_ls_extinction_coef       0.023(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.274
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     255
_refine_ls_number_reflns         3572
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.274
_refine_ls_R_factor_all          0.1014
_refine_ls_R_factor_gt           0.0927
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0658P)^2^+15.0510P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2006
_refine_ls_wR_factor_ref         0.2055
_reflns_number_gt                3290
_reflns_number_total             3572
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b916425a.txt
_cod_data_source_block           piotr9
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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 
;
_cod_original_sg_symbol_H-M      P2(1)2(1)2(1)
_cod_database_code               7024390