Chiral versus racemic building blocks in supramolecular chemistry: malate salts of organic diamines
Farrell, Dorcas M. M.; Ferguson, George; Lough, Alan J.; Glidewell, Christopher; Acta Crystallographica, Section B 58 (2002) 530–544; doi:10.1107/S0108768102000642

data_2103131
_publ_section_title
;
Chiral versus racemic building blocks in supramolecular
chemistry: malate salts of organic diamines
;
_journal_issue                   3
_journal_name_full               'Acta Crystallographica, Section B'
_journal_page_first              530
_journal_page_last               544
_journal_paper_doi               10.1107/S0108768102000642
_journal_volume                  58
_journal_year                    2002
_chemical_formula_moiety         '2(C6 H5 N), C4 H6 O5'
_chemical_formula_sum            'C16 H16 N2 O5'
_chemical_formula_weight         316.31
_chemical_name_systematic
;
1,2-Bis-(4'-pyridyl)ethene--racemic malic acid (1/1)
;
_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
_cell_angle_alpha                73.213(5)
_cell_angle_beta                 89.915(6)
_cell_angle_gamma                79.750(7)
_cell_formula_units_Z            1
_cell_length_a                   4.9566(6)
_cell_length_b                   8.4178(10)
_cell_length_c                   9.2538(14)
_cell_measurement_reflns_used    1243
_cell_measurement_temperature    150(2)
_cell_measurement_theta_max      25.14
_cell_measurement_theta_min      2.91
_cell_volume                     363.24(8)
_computing_cell_refinement       'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_data_collection       'Kappa-CCD server software (Nonius, 1997)'
_computing_data_reduction        'DENZO-SMN (Otwinowski & Minor, 1997)'
_computing_molecular_graphics    'PLATON (Spek, 2001)'
_computing_publication_material
'SHELXL-97 (Sheldrick, 1997b) and PRPKAPPA (Ferguson, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997b)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997a)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.993
_diffrn_measured_fraction_theta_max 0.993
_diffrn_measurement_device_type  Kappa-CCD
_diffrn_measurement_method       '\f scans, and \w scans with \k offsets'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed X-ray tube'
_diffrn_radiation_type           'Mo K\a'
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_diffrn_reflns_av_R_equivalents  0.078
_diffrn_reflns_av_sigmaI/netI    0.0895
_diffrn_reflns_limit_h_max       0
_diffrn_reflns_limit_h_min       -5
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            3458
_diffrn_reflns_theta_full        25.14
_diffrn_reflns_theta_max         25.14
_diffrn_reflns_theta_min         2.91
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    0.109
_exptl_absorpt_correction_T_max  0.9870
_exptl_absorpt_correction_T_min  0.9681
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO-SMN (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            colourless
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_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
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_refine_ls_number_restraints     32
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_refine_ls_R_factor_all          0.1076
_refine_ls_R_factor_gt           0.0593
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0867P)^2^] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_number_gt                774
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_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            na0134.cif
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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 
;
_cod_original_sg_symbol_H-M      P-1
_cod_original_formula_sum        ' C16 H16 N2 O5'
_cod_database_code               2103131