Polymorphism of Long-Chain Alkane-α,ω-Diols with an Even Number of Carbon Atoms
Uno, Kenjiro; Ogawa, Yoshihiro; Nakamura, Naotake; Crystal Growth & Design 8 (2008) 592–; doi:10.1021/cg700729q

data_4503179
_publ_section_title
;
 Polymorphism of Long-Chain Alkane-\a,\w-Diols with an Even Number of
 Carbon Atoms
;
_journal_issue                   2
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              592
_journal_paper_doi               10.1021/cg700729q
_journal_volume                  8
_journal_year                    2008
_chemical_absolute_configuration unk
_chemical_formula_moiety         'C20 H42 O2'
_chemical_formula_sum            'C20 H42 O2'
_chemical_formula_weight         314.54
_space_group_IT_number           4
_symmetry_cell_setting           monoclinic
_symmetry_Int_Tables_number      4
_symmetry_space_group_name_Hall  'P 2yb'
_symmetry_space_group_name_H-M   'P 1 21 1'
_audit_creation_date             2007-07-24T05:26:42-00:00
_audit_creation_method           'WinGX routine CIF_UPDATE'
_cell_angle_alpha                90
_cell_angle_beta                 93.47(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.058(3)
_cell_length_b                   7.219(4)
_cell_length_c                   27.746(2)
_cell_measurement_reflns_used    25
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      19.49
_cell_measurement_theta_min      10.10
_cell_volume                     1011.3(8)
_computing_molecular_graphics    'Ortep-3 for Windows (Farrugia, 1997)'
_computing_publication_material  'WinGX publication routines (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-86 (Sheldrick, 1986)'
_diffrn_measured_fraction_theta_full 0.989
_diffrn_measured_fraction_theta_max 0.99
_diffrn_measurement_device_type  'Rigaku AFC5R'
_diffrn_measurement_method       \w
_diffrn_radiation_probe          x-ray
_diffrn_radiation_type           CuK\a
_diffrn_radiation_wavelength     1.54178
_diffrn_reflns_av_R_equivalents  0.0623
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -1
_diffrn_reflns_limit_k_max       0
_diffrn_reflns_limit_k_min       -8
_diffrn_reflns_limit_l_max       33
_diffrn_reflns_limit_l_min       -33
_diffrn_reflns_number            2780
_diffrn_reflns_theta_full        70.57
_diffrn_reflns_theta_max         70.57
_diffrn_reflns_theta_min         3.19
_diffrn_standards_decay_%        0.80
_diffrn_standards_interval_count 150
_diffrn_standards_number         3
_exptl_absorpt_coefficient_mu    0.481
_exptl_absorpt_correction_T_max  0.9915
_exptl_absorpt_correction_T_min  0.9071
_exptl_absorpt_correction_type   psi-scan
_exptl_absorpt_process_details   '(North et al., 1968)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.033
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             356
_exptl_crystal_size_max          0.50
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.01
_refine_diff_density_max         0.114
_refine_diff_density_min         -0.150
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   0.960
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     205
_refine_ls_number_reflns         2083
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      0.960
_refine_ls_R_factor_gt           0.0454
_refine_ls_shift/su_max          <0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0872P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_ref         0.159
_reflns_number_gt                1113
_reflns_number_total             2083
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg700729q-file002.cif
_cod_data_source_block           6_Icosane-1,20-diol-II'
_cod_original_sg_symbol_H-M      'P 21'
_cod_database_code               4503179