<i>meso</i>-4,5-Dihydroxy-4,5-dimethylocta-1,7-diyne
Bolte, Michael; Eckstein, Klaus; Hashmi, A. Stephen K.; Acta Crystallographica Section E 61 (2005) o4064–o4066; doi:10.1107/S1600536805036147

data_2207639
_publ_section_title
;
 <i>meso</i>-4,5-Dihydroxy-4,5-dimethylocta-1,7-diyne
;
_journal_coeditor_code           SJ6145
_journal_issue                   12
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o4064
_journal_page_last               o4066
_journal_paper_doi               10.1107/S1600536805036147
_journal_volume                  61
_journal_year                    2005
_chemical_formula_iupac          'C10 H14 O2'
_chemical_formula_moiety         'C10 H14 O2'
_chemical_formula_sum            'C10 H14 O2'
_chemical_formula_weight         166.21
_chemical_name_systematic
;
4,5-Dihydroxy-4,5-dimethylocta-1,7-diyne
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 107.25(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.750(2)
_cell_length_b                   10.120(2)
_cell_length_c                   11.394(2)
_cell_measurement_reflns_used    8192
_cell_measurement_temperature    173(2)
_cell_measurement_theta_max      24.5
_cell_measurement_theta_min      3.2
_cell_volume                     963.6(4)
_computing_cell_refinement       SMART
_computing_data_collection       'SMART (Siemens, 1995)'
_computing_data_reduction        'SAINT (Siemens, 1995)'
_computing_molecular_graphics
;
XP in SHELXTL-Plus (Sheldrick, 1991) and PLATON (Spek, 2003)
;
_computing_publication_material  'SHELXL97 and PLATON'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 0.886
_diffrn_measurement_device_type  'Siemens CCD three-circle'
_diffrn_measurement_method       \w
_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  0.0293
_diffrn_reflns_av_sigmaI/netI    0.0200
_diffrn_reflns_limit_h_max       12
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            20872
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         31.35
_diffrn_reflns_theta_min         2.44
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.078
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.146
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             360
_exptl_crystal_size_max          0.47
_exptl_crystal_size_mid          0.41
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.325
_refine_diff_density_min         -0.216
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     111
_refine_ls_number_reflns         2802
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0649
_refine_ls_R_factor_gt           0.0480
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0582P)^2^+0.3195P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1197
_refine_ls_wR_factor_ref         0.1298
_reflns_number_gt                2245
_reflns_number_total             2802
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            sj6145.cif
_cod_data_source_block           I
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
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 'Monoclinic' changed to 'monoclinic'
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 
;
_cod_original_sg_symbol_H-M      'P 21/c'
_cod_database_code               2207639
_cod_database_fobs_code          2207639