C15H22O3
Collins, Ian; Welford, Amanda; Horton, Peter N.; Callear, Samantha K.; Hursthouse, Michael B.; Crystal Structure Report Archive  (2008) 622–; doi:

data_1519883
_publ_section_title
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 C15H22O3
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_journal_name_full               'Crystal Structure Report Archive'
_journal_page_first              622
_journal_year                    2008
_chemical_formula_sum            'C15 H22 O3'
_chemical_formula_weight         250.33
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   5.25570(10)
_cell_length_b                   10.3241(4)
_cell_length_c                   24.6007(9)
_cell_measurement_reflns_used    9636
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      27.48
_cell_measurement_theta_min      2.91
_cell_volume                     1334.84(8)
_computing_cell_refinement
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_data_collection       'COLLECT (Hooft, R.W.W., 1998)'
_computing_data_reduction
'DENZO (Otwinowski & Minor, 1997) & COLLECT (Hooft, R.W.W., 1998)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      120(2)
_diffrn_detector_area_resol_mean 9.091
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type
'Bruker-Nonius Roper CCD camera on \k-goniostat'
_diffrn_measurement_method       '\f & \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'Bruker-Nonius FR591 rotating anode'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0467
_diffrn_reflns_av_sigmaI/netI    0.0371
_diffrn_reflns_limit_h_max       6
_diffrn_reflns_limit_h_min       -6
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       31
_diffrn_reflns_limit_l_min       -30
_diffrn_reflns_number            10722
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         3.31
_exptl_absorpt_coefficient_mu    0.085
_exptl_absorpt_correction_T_max  0.9949
_exptl_absorpt_correction_T_min  0.9492
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS 2007/2 (Sheldrick, G.M., 2007)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.246
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       blade
_exptl_crystal_F_000             544
_exptl_crystal_size_max          0.62
_exptl_crystal_size_mid          0.22
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.201
_refine_diff_density_min         -0.208
_refine_diff_density_rms         0.065
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   10(10)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.054
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     163
_refine_ls_number_reflns         1796
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.054
_refine_ls_R_factor_all          0.0479
_refine_ls_R_factor_gt           0.0392
_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^)+(0.0398P)^2^+0.2489P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0847
_refine_ls_wR_factor_ref         0.0887
_reflns_number_gt                1592
_reflns_number_total             1796
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            eCrystal-622.cif
_cod_data_source_block           2008src1140
_cod_depositor_comments
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Citation :
Collins, Ian and Welford, Amanda and Horton, Peter N. and 
Callear, Samantha K. and Hursthouse, Michael B. (2008) 
University of Southampton, Crystal Structure Report Archive. 
(doi:10.5258/ecrystals/622)

More at:
http://ecrystals.chem.soton.ac.uk/622/
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_cod_original_sg_symbol_H-M      P212121
_cod_database_code               1519883