1,1',1''-[(5<i>RS</i>,6<i>RS</i>)-6-Hydroxy-6-methyl-3,4,5,6-tetrahydro-2<i>H</i>-pyran-3,3,5-triyl]triethanone
Burton, Sylvester; Fronczek, Frank R.; Maverick, Andrew W.; Acta Crystallographica Section E 63 (2007) o2661–o2662; doi:10.1107/S1600536807018120

data_2213147
_publ_section_title
1,1',1''-[(5<i>RS</i>,6<i>RS</i>)-6-Hydroxy-6-methyl-3,4,5,6-tetrahydro-2<i>H</i>-pyran-3,3,5-triyl]triethanone
_journal_coeditor_code           BQ2009
_journal_issue                   5
_journal_name_full               'Acta Crystallographica Section E'
_journal_page_first              o2661
_journal_page_last               o2662
_journal_paper_doi               10.1107/S1600536807018120
_journal_volume                  63
_journal_year                    2007
_chemical_formula_iupac          'C12 H18 O5'
_chemical_formula_moiety         'C12 H18 O5'
_chemical_formula_sum            'C12 H18 O5'
_chemical_formula_weight         242.26
_chemical_name_systematic
;
1,1',1''-[(5<i>R</i>,6<i>R</i>)-6-Hydroxy-6-methyl-3,4,5,6-tetrahydro-
2<i>H</i>-pyran-3,3,5-triyl]triethanone
;
_space_group_IT_number           7
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  'P -2yac'
_symmetry_space_group_name_H-M   'P 1 n 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
_cell_angle_beta                 91.26(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.598(2)
_cell_length_b                   8.813(3)
_cell_length_c                   9.169(2)
_cell_measurement_reflns_used    1738
_cell_measurement_temperature    120
_cell_measurement_theta_max      30.0
_cell_measurement_theta_min      2.5
_cell_volume                     613.8(3)
_computing_cell_refinement       'DENZO and SCALEPACK'
_computing_data_collection       'COLLECT (Nonius, 2000)'
_computing_data_reduction
'DENZO and SCALEPACK (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'ORTEP-3 (Farrugia, 1997)'
_computing_publication_material  SHELXL97
_computing_structure_refinement  'SHELXL97 (Sheldrick, 1997)'
_computing_structure_solution    'SIR97 (Altomare <i>et al.</i>,  1999)'
_diffrn_ambient_temperature      120
_diffrn_measured_fraction_theta_full 0.996
_diffrn_measured_fraction_theta_max 0.996
_diffrn_measurement_device
'Nonius KappaCCD diffractometer with an Oxford Cryosystems Cryostream cooler'
_diffrn_measurement_method       ' \w scans with \k offsets'
_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  0.024
_diffrn_reflns_av_sigmaI/netI    0.0427
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            6461
_diffrn_reflns_theta_full        30.0
_diffrn_reflns_theta_max         30.0
_diffrn_reflns_theta_min         3.2
_diffrn_standards_decay_%        0
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.102
_exptl_absorpt_correction_type   none
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.311
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       lath
_exptl_crystal_F_000             260
_exptl_crystal_size_max          0.46
_exptl_crystal_size_mid          0.07
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.45
_refine_diff_density_min         -0.20
_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     159
_refine_ls_number_reflns         1796
_refine_ls_number_restraints     2
_refine_ls_restrained_S_all      1.073
_refine_ls_R_factor_all          0.058
_refine_ls_R_factor_gt           0.046
_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^)+(0.0424P)^2^+0.2367P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.099
_refine_ls_wR_factor_ref         0.106
_reflns_number_gt                1588
_reflns_number_total             1796
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            bq2009.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 n'
_cod_database_code               2213147
_cod_database_fobs_code          2213147