Interesting Modes of Self-assembly of Achiral 12-Oxo-11,13-dioxa[4.4.3]propellanes in a Noncentrosymmetric Environment
Mehta, Goverdhan; Sen, Saikat; Crystal Growth & Design 11 (2011) 3721–; doi:10.1021/cg200665w

data_4501049
_publ_section_title
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 Interesting Modes of Self-assembly of Achiral
 12-Oxo-11,13-dioxa[4.4.3]propellanes in a Noncentrosymmetric Environment
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_journal_issue                   9
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3721
_journal_paper_doi               10.1021/cg200665w
_journal_volume                  11
_journal_year                    2011
_chemical_absolute_configuration unk
_chemical_compound_source        'see text'
_chemical_formula_iupac          'C11 H16 O3'
_chemical_formula_moiety         'C11 H16 O3'
_chemical_formula_structural     'C11 H16 O3'
_chemical_formula_sum            'C11 H16 O3'
_chemical_formula_weight         196.24
_chemical_name_systematic
;
(1s,6s)-11,13-dioxatricyclo[4.4.3.01,6]tridecan-12-one
;
_space_group_IT_number           20
_symmetry_cell_setting           orthorhombic
_symmetry_Int_Tables_number      20
_symmetry_space_group_name_Hall  'C 2c 2'
_symmetry_space_group_name_H-M   'C 2 2 21'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   7.6793(7)
_cell_length_b                   10.2749(10)
_cell_length_c                   12.4329(12)
_cell_measurement_reflns_used    3103
_cell_measurement_temperature    291(2)
_cell_measurement_theta_max      27.79
_cell_measurement_theta_min      3.28
_cell_volume                     981.01(16)
_computing_cell_refinement       'SMART (Bruker, 1998)'
_computing_data_collection       'SMART (Bruker, 1998)'
_computing_data_reduction        'SAINT (Bruker, 1998)'
_computing_molecular_graphics
'Ortep-3 for Windows (Farrugia, 1997) and CAMERON (Watkin et al., 1993)'
_computing_publication_material  'PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      291(2)
_diffrn_measured_fraction_theta_full 0.998
_diffrn_measured_fraction_theta_max 0.998
_diffrn_measurement_device_type  'Bruker AXS SMART APEX CCD area-detector'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoKa
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0346
_diffrn_reflns_av_sigmaI/netI    0.0264
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       13
_diffrn_reflns_limit_l_min       -15
_diffrn_reflns_number            3644
_diffrn_reflns_reduction_process
;
;
_diffrn_reflns_theta_full        25.50
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         3.28
_exptl_absorpt_coefficient_mu    0.095
_exptl_absorpt_correction_T_max  0.9646
_exptl_absorpt_correction_T_min  0.9601
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.329
_exptl_crystal_density_method    'Not Measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.43
_exptl_crystal_size_mid          0.40
_exptl_crystal_size_min          0.38
_refine_diff_density_max         0.153
_refine_diff_density_min         -0.151
_refine_diff_density_rms         0.032
_refine_ls_abs_structure_details 'see text'
_refine_ls_extinction_coef       0.064(6)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.097
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     66
_refine_ls_number_reflns         543
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0366
_refine_ls_R_factor_gt           0.0352
_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^)+(0.0414P)^2^+0.3680P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0866
_refine_ls_wR_factor_ref         0.0876
_reflns_number_gt                522
_reflns_number_total             543
_reflns_threshold_expression     I>2sigma(I)
_cod_data_source_file            cg200665w_si_001.cif
_cod_data_source_block           carbonate_4
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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 
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_cod_database_code               4501049