(4-Methoxyphenyl)diphenylmethanol, an Unusual Tetramer Containing a <i>D</i>[<i>R</i>] Pattern of Hydrogen Bonds, and Tris(2-methoxyphenyl)methanol
Patterson, Iain L. J.; Glidewell, Christopher; Ferguson, George; Acta Crystallographica Section C 54 (1998) 1970–1974; doi:10.1107/S0108270198009329

data_2008027
_publ_section_title
;
 (4-Methoxyphenyl)diphenylmethanol, an Unusual Tetramer Containing a
 <i>D</i>[<i>R</i>] Pattern of Hydrogen Bonds, and
 Tris(2-methoxyphenyl)methanol
;
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              1970
_journal_page_last               1974
_journal_paper_doi               10.1107/S0108270198009329
_journal_volume                  54
_journal_year                    1998
_chemical_formula_moiety         'C20 H18 O2'
_chemical_formula_sum            'C20 H18 O2'
_chemical_formula_weight         290.36
_chemical_name_systematic
;
(4-Methoxyphenyl)diphenylmethanol
;
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                77.388(7)
_cell_angle_beta                 85.339(7)
_cell_angle_gamma                74.803(6)
_cell_formula_units_Z            4
_cell_length_a                   10.1013(9)
_cell_length_b                   11.8200(10)
_cell_length_c                   14.1077(11)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    294.0(10)
_cell_measurement_theta_max      18.81
_cell_measurement_theta_min      9.49
_cell_volume                     1585.8(2)
_computing_cell_refinement       'SET4 and CELDIM in CAD-4-PC Software'
_computing_data_collection       'CAD-4-PC Software (Enraf-Nonius, 1992)'
_computing_data_reduction        'DATRD2 in NRCVAX96 (Gabe et al., 1989)'
_computing_molecular_graphics
'NRCVAX96, ORTEPII (Johnson, 1976) and PLATON (Spek, 1998)'
_computing_publication_material  'NRCVAX96, SHELXL97 and PREP8 (Ferguson, 1998)'
_computing_structure_refinement  'NRCVAX96 and SHELXL97 (Sheldrick, 1997b)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      294.0(10)
_diffrn_measured_fraction_theta_full 0.99
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device       'Enraf-Nonius CAD-4'
_diffrn_measurement_method       \q/2\q
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'X-ray tube'
_diffrn_radiation_type           'Molybdenum K\a'
_diffrn_radiation_wavelength     0.7107
_diffrn_reflns_av_R_equivalents  0.000
_diffrn_reflns_av_sigmaI/netI    0.044
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -11
_diffrn_reflns_limit_k_max       14
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       17
_diffrn_reflns_limit_l_min       -16
_diffrn_reflns_number            5901
_diffrn_reflns_theta_full        25.4
_diffrn_reflns_theta_max         25.5
_diffrn_reflns_theta_min         2.09
_diffrn_standards_decay_%        'no decay, variation 0.4'
_diffrn_standards_interval_time  120
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.077
_exptl_absorpt_correction_T_max  1.000
_exptl_absorpt_correction_T_min  1.000
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.216
_exptl_crystal_density_meas      ?
_exptl_crystal_description       plate
_exptl_crystal_F_000             616
_exptl_crystal_size_max          0.41
_exptl_crystal_size_mid          0.41
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.156
_refine_diff_density_min         -0.134
_refine_ls_extinction_coef       0.0131(15)
_refine_ls_extinction_method     SHELXL97_(Sheldrick,_1997b)
_refine_ls_goodness_of_fit_ref   1.008
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     402
_refine_ls_number_reflns         5901
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.008
_refine_ls_R_factor_all          0.090
_refine_ls_R_factor_gt           0.037
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w = 1/[\s^2^(Fo^2^)+(0.0536P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.102
_reflns_number_gt                3323
_reflns_number_total             5901
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sk1217.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
according to /home/saulius/struct/CIF-dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 

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 

The following automatic conversions were performed:

'_refine_ls_weighting_scheme' value 'calc w =
1/[\s^2^(Fo^2^)+(0.0536P)^2^] where P=(Fo^2^+2Fc^2^)/3' was changed
to 'calc'. New tag '_refine_ls_weighting_details' was created. The
value of the new tag was set to 'w = 1/[\s^2^(Fo^2^)+(0.0536P)^2^]
where P=(Fo^2^+2Fc^2^)/3'.

Automatic conversion script
Id: cif_fix_values 3143 2015-03-26 13:38:13Z robertas 
;
_cod_database_code               2008027