Template-controlled face-to-face stacking of olefinic and aromatic carboxylic acids in the solid state.
Mei, Xuefeng; Liu, Shuanglong; Wolf, Christian; Organic letters 9 (2007) 2729–2732; doi:10.1021/ol071039c

data_1505446
_publ_section_title
;
 Template-controlled face-to-face stacking of olefinic and aromatic
 carboxylic acids in the solid state.
;
_journal_issue                   14
_journal_name_full               'Organic letters'
_journal_page_first              2729
_journal_page_last               2732
_journal_paper_doi               10.1021/ol071039c
_journal_volume                  9
_journal_year                    2007
_chemical_formula_moiety         'C8 H12 O10'
_chemical_formula_sum            'C8 H12 O10'
_chemical_formula_weight         268.18
_chemical_name_common            CBTA
_chemical_name_systematic
;
 1,2,3,4-cyclobutane tetracarboxylic acid
;
_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                 102.928(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   6.081(2)
_cell_length_b                   15.034(5)
_cell_length_c                   12.304(4)
_cell_measurement_temperature    187(2)
_cell_volume                     1096.3(6)
_computing_cell_refinement       'SAINT, Bruker'
_computing_data_collection       'SMART, Bruker'
_computing_data_reduction        'SAINT, Bruker'
_computing_molecular_graphics    'XSEED, L. Barbour (1999); http:\x-seed.net'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      187(2)
_diffrn_measured_fraction_theta_full 0.973
_diffrn_measured_fraction_theta_max 0.973
_diffrn_measurement_device_type  'SMART platform CCD, Siemens/Bruker'
_diffrn_measurement_method       'omega scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
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_diffrn_reflns_limit_h_min       -7
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_diffrn_reflns_limit_k_min       -19
_diffrn_reflns_limit_l_max       16
_diffrn_reflns_limit_l_min       -15
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_diffrn_reflns_theta_full        27.99
_diffrn_reflns_theta_max         27.99
_diffrn_reflns_theta_min         2.17
_exptl_absorpt_coefficient_mu    0.155
_exptl_absorpt_correction_T_max  0.9954
_exptl_absorpt_correction_T_min  0.9847
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_colour            clear
_exptl_crystal_density_diffrn    1.625
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             560
_exptl_crystal_size_max          0.10
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.03
_refine_diff_density_max         0.422
_refine_diff_density_min         -0.248
_refine_diff_density_rms         0.065
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.046
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
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_refine_ls_number_reflns         2568
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_refine_ls_R_factor_all          0.0664
_refine_ls_R_factor_gt           0.0432
_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^)+(0.0760P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1135
_refine_ls_wR_factor_ref         0.1228
_reflns_number_gt                1891
_reflns_number_total             2568
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ol071039csi20070508_032348.cif
_cod_data_source_block           d:\shuang~1\crysta~1\04136\work\04136
_cod_depositor_comments
;
The following automatic conversions were performed:
'_atom_site_symetry_multiplicity' tag replaced with
'_atom_site_symmetry_multiplicity'.

Automatic conversion script
Id: cif_correct_tags 1440 2010-10-19 06:21:57Z 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_cell_volume        1096.4(6)
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               1505446