Pseudosymmetry, polymorphism and weak interactions: 4,4′′-difluoro-5′-hydroxy-1,1′:3′,1′′-terphenyl-4′-carboxylic acid and its derivatives
Owczarzak, Anita M.; Samshuddin, Seranthimata; Narayana, Badiadka; Yathirajan, Hemmige S.; Kubicki, Maciej; CrystEngComm 15 (2013) 9893–; doi:10.1039/c3ce41639a

data_7211436
_publ_section_title
;
 Pseudosymmetry, polymorphism and weak interactions:
 4,4&#x2032;&#x2032;-difluoro-5&#x2032;-hydroxy-1,1&#x2032;:3&#x2032;,1&#x2032;&#x2032;-terphenyl-4&#x2032;-carboxylic
 acid and its derivatives
;
_journal_issue                   46
_journal_name_full               CrystEngComm
_journal_page_first              9893
_journal_paper_doi               10.1039/c3ce41639a
_journal_volume                  15
_journal_year                    2013
_chemical_formula_moiety         'C21 H16 F2 O3'
_chemical_formula_sum            'C21 H16 F2 O3'
_chemical_formula_weight         354.34
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                96.213(3)
_cell_angle_beta                 98.252(4)
_cell_angle_gamma                93.542(4)
_cell_formula_units_Z            2
_cell_length_a                   6.9778(3)
_cell_length_b                   11.1289(5)
_cell_length_c                   11.5383(5)
_cell_measurement_reflns_used    2961
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      28.1370
_cell_measurement_theta_min      2.9530
_cell_volume                     878.80(7)
_computing_cell_refinement       'CrysAlis Pro (Agilent Technologies (2011))'
_computing_data_collection       'CrysAlis Pro (Agilent Technologies (2011))'
_computing_data_reduction        'CrysAlis Pro (Agilent Technologies (2011))'
_computing_molecular_graphics    'XP (Sheldrick, 2008)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare et al., 1993)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.1544
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       \w-scan
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Enhance (Mo) X-ray Source'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0241
_diffrn_reflns_av_sigmaI/netI    0.0327
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -13
_diffrn_reflns_number            9504
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.96
_exptl_absorpt_coefficient_mu    0.103
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.99613
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlisPro, Oxford Diffraction Ltd.,
Version 1.171.34.43 (release 21-10-2010 CrysAlis171 .NET)
(compiled Oct 21 2010,17:48:23)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm.
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.339
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             368
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.1
_refine_diff_density_max         0.113
_refine_diff_density_min         -0.154
_refine_diff_density_rms         0.028
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.983
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     288
_refine_ls_number_reflns         3080
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.983
_refine_ls_R_factor_all          0.0853
_refine_ls_R_factor_gt           0.0480
_refine_ls_shift/su_max          0.005
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0459P)^2^+0.1470P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1007
_refine_ls_wR_factor_ref         0.1134
_reflns_number_gt                1988
_reflns_number_total             3080
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c3ce41639a.txt
_cod_data_source_block           2B
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7211436