Probing Persistent Intramolecular C-H...X (X = O, S, Br, Cl, and F) Bonding in Solution Using Benzyl Meldrum's Acid Derivatives
Eric Fillion; Ashraf Wilsily; Dan Fishlock; Journal of Organic Chemistry 74 (2009) 1259–1267; doi:10.1021/jo802311w

data_4024303
_publ_section_title
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Probing Persistent Intramolecular C-H...X (X = O, S, Br, Cl, and F)
Bonding in Solution Using Benzyl Meldrum's Acid Derivatives
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_journal_name_full               'Journal of Organic Chemistry'
_journal_page_first              1259
_journal_page_last               1267
_journal_paper_doi               10.1021/jo802311w
_journal_volume                  74
_journal_year                    2009
_chemical_formula_moiety         'C19 H22 O5'
_chemical_formula_sum            'C19 H22 O5'
_chemical_formula_weight         330.37
_space_group_IT_number           2
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                94.029(5)
_cell_angle_beta                 100.953(6)
_cell_angle_gamma                100.439(6)
_cell_formula_units_Z            2
_cell_length_a                   6.0581(5)
_cell_length_b                   9.1995(10)
_cell_length_c                   15.9090(17)
_cell_measurement_reflns_used    2917
_cell_measurement_temperature    150(1)
_cell_measurement_theta_max      25.0
_cell_measurement_theta_min      2.6
_cell_volume                     851.03(15)
_computing_cell_refinement       'Denzo-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Collect (Nonius B.V., 1997-2002)'
_computing_data_reduction        Denzo-SMN
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL V6.1'
_computing_structure_refinement  'SHELXTL V6.1 (Sheldrick, 2008)'
_computing_structure_solution    'SIR-92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      150(2)
_diffrn_detector_area_resol_mean 9
_diffrn_measured_fraction_theta_full 0.975
_diffrn_measured_fraction_theta_max 0.975
_diffrn_measurement_device_type  'Bruker-Nonius KappaCCD'
_diffrn_measurement_method       '\f scans and \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  0.0104
_diffrn_reflns_av_sigmaI/netI    0.0778
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       18
_diffrn_reflns_limit_l_min       -7
_diffrn_reflns_number            2917
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.62
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.093
_exptl_absorpt_correction_T_max  1.019
_exptl_absorpt_correction_T_min  0.640
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
multi-scan from symmetry-related measurements 
 Sortav (Blessing 1995)
;
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.289
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             352
_exptl_crystal_size_max          0.24
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.12
_refine_diff_density_max         0.274
_refine_diff_density_min         -0.265
_refine_diff_density_rms         0.067
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.129
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     221
_refine_ls_number_reflns         2917
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.129
_refine_ls_R_factor_all          0.1108
_refine_ls_R_factor_gt           0.0851
_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^)+(0.0971P)^2^+0.9439P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.2371
_refine_ls_wR_factor_ref         0.2538
_reflns_number_gt                2122
_reflns_number_total             2917
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            jo802311w_si_012.cif
_cod_data_source_block           k08204
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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 
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_cod_database_code               4024303