Temperature-Dependent Phase Transitions in Two Crystalline Host‒Guest Complexes Derived from Mandelic Acid
Hager, O.; Foces-Foces, C.; Llamas-Saiz, A. L.; Weber, E.; Acta Crystallographica Section B 54 (1998) 82–93; doi:10.1107/S0108768197010471

data_2105545
_publ_section_title
;
 Temperature-Dependent Phase Transitions in Two Crystalline Host--Guest
 Complexes Derived from Mandelic Acid
;
_journal_issue                   1
_journal_name_full               'Acta Crystallographica Section B'
_journal_page_first              82
_journal_page_last               93
_journal_paper_doi               10.1107/S0108768197010471
_journal_volume                  54
_journal_year                    1998
_chemical_formula_moiety         'C28 H34 O2 . C3 H7 N O'
_chemical_formula_sum            'C31 H41 N O3'
_chemical_formula_weight         475.67
_chemical_name_systematic
;(R)-1,1-bis(4-tert-butylphenyl)-2-phenylethan-1,2-diol dimethylformamide
 1:1 complex
;
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_audit_creation_method           from_xtal_archive_file_using_CIFIO
_cell_angle_alpha                90.00000
_cell_angle_beta                 98.100(6)
_cell_angle_gamma                90.00000
_cell_formula_units_Z            4
_cell_length_a                   24.811(2)
_cell_length_b                   6.0739(2)
_cell_length_c                   18.8645(10)
_cell_measurement_reflns_used    81
_cell_measurement_temperature    250
_cell_measurement_theta_max      45
_cell_measurement_theta_min      2
_cell_volume                     2814.5(3)
_computing_cell_refinement       'LSUCRE (Appleman, 1984)'
_computing_data_collection       'Philips PW1100'
_computing_data_reduction        xtal_DIFDAT_SORTRF_ADDREF
_computing_molecular_graphics    xtal_ORTEP
_computing_publication_material  xtal_BONDLA_CIFIO
_computing_structure_refinement  xtal_CRYLSQ
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      293
_diffrn_measurement_device       'Philips PW1100'
_diffrn_measurement_method       \w/2\q
_diffrn_radiation_monochromator  Graphite
_diffrn_radiation_source         xray_tube
_diffrn_radiation_type           'Cu K\a'
_diffrn_radiation_wavelength     1.5418
_diffrn_reflns_av_R_equivalents  .006
_diffrn_reflns_av_sigmaI/netI    .021
_diffrn_reflns_limit_h_max       28
_diffrn_reflns_limit_h_min       -29
_diffrn_reflns_limit_k_max       7
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       0
_diffrn_reflns_number            5444
_diffrn_reflns_reduction_process perpendicular_monochr_Lp
_diffrn_reflns_theta_max         65.12
_diffrn_reflns_theta_min         2.37
_diffrn_standards_decay_%        0
_diffrn_standards_interval_time  90
_diffrn_standards_number         2
_exptl_absorpt_coefficient_mu    0.5541
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    1.123
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             1032
_exptl_crystal_size_max          0.70
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.30
_refine_diff_density_max         .431
_refine_diff_density_min         -.465
_refine_ls_abs_structure_details 'Known by synthesis'
_refine_ls_abs_structure_Flack   0
_refine_ls_extinction_coef       7822.573
_refine_ls_extinction_method     'Zachariasen (1968)'
_refine_ls_goodness_of_fit_all   .949
_refine_ls_goodness_of_fit_obs   .900
_refine_ls_hydrogen_treatment    noref
_refine_ls_matrix_type           full
_refine_ls_number_constraints    0
_refine_ls_number_parameters     639
_refine_ls_number_reflns         3123
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          .117
_refine_ls_R_factor_obs          .08
_refine_ls_shift/esd_max         .012
_refine_ls_shift/esd_mean        .01
_refine_ls_structure_factor_coef F
_refine_ls_weighting_scheme
; Weighting scheme: empirical to
  give no trends in <wF^2^> vs
  <|F~obs~|> and <sin\q/\l>
;
_refine_ls_wR_factor_all         .142
_refine_ls_wR_factor_obs         .101
_reflns_number_observed          3125
_reflns_number_total             5295
_reflns_observed_criterion       I>2\s(I)
_cod_data_source_file            bm0010.cif
_cod_data_source_block           1b
_cod_original_sg_symbol_Hall     P_2y1
_cod_original_sg_symbol_H-M      'P 21'
_cod_original_formula_sum        'C31 H41 N1 O3 '
_cod_database_code               2105545