Xanthenol clathrates: structure, thermal stability, guest exchange and kinetics of desolvation.
Jacobs, Ayesha; Nassimbeni, Luigi R.; Su, Hong; Taljaard, Benjamin; Organic & biomolecular chemistry 3 (2005) 1319–1322; doi:10.1039/b416331a

data_7150043
_publ_section_title
;
 Xanthenol clathrates: structure, thermal stability, guest exchange and
 kinetics of desolvation.
;
_journal_issue                   7
_journal_name_full               'Organic &amp; biomolecular chemistry'
_journal_page_first              1319
_journal_page_last               1322
_journal_paper_doi               10.1039/b416331a
_journal_volume                  3
_journal_year                    2005
_chemical_formula_moiety         'C20 H16 O3.C4 H5'
_chemical_formula_sum            'C24 H21 O3'
_chemical_formula_weight         357.41
_chemical_name_common
'9-(4-methoxyphenyl)-9H-xanthen-9-ol m-xylene clathrate'
_chemical_name_systematic
;
9-(4-methoxyphenyl)-9H-xanthen-9-ol m-xylene clathrate
;
_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                95.6200(10)
_cell_angle_beta                 94.8400(10)
_cell_angle_gamma                109.6600(10)
_cell_formula_units_Z            2
_cell_length_a                   8.49020(10)
_cell_length_b                   9.19230(10)
_cell_length_c                   12.9946(2)
_cell_measurement_reflns_used    'All data'
_cell_measurement_temperature    283
_cell_volume                     942.97(2)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'COLLECT (2000)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'X-seed (Barbour, 2001)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      283
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.989
_diffrn_measurement_device_type  'Nonius Kappa CCD diffractometer'
_diffrn_measurement_method       '1\% \f scans and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0121
_diffrn_reflns_av_sigmaI/netI    0.0252
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            7718
_diffrn_reflns_theta_full        27.06
_diffrn_reflns_theta_max         27.06
_diffrn_reflns_theta_min         3.24
_exptl_absorpt_coefficient_mu    0.082
_exptl_absorpt_correction_T_max  0.9758
_exptl_absorpt_correction_T_min  0.9719
_exptl_crystal_colour            cuboid
_exptl_crystal_density_diffrn    1.259
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       colourless
_exptl_crystal_F_000             378
_exptl_crystal_size_max          0.35
_exptl_crystal_size_mid          0.32
_exptl_crystal_size_min          0.30
_refine_diff_density_max         0.669
_refine_diff_density_min         -0.524
_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.085
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     237
_refine_ls_number_reflns         4106
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.085
_refine_ls_R_factor_all          0.0904
_refine_ls_R_factor_gt           0.0746
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1415P)^2^+0.3756P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2286
_refine_ls_wR_factor_ref         0.2463
_reflns_number_gt                3208
_reflns_number_total             4106
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b416331a.txt
_cod_data_source_block           c:\opix\myexam~1\a1mxyrt\a1mxyrt
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7150043