Bifurcated hydrogen-bonded synthons in molecular complexes of picolines with chloranilic acid
Adam, Martin S.; Parkin, Andrew; Thomas, Lynne H.; Wilson, Chick C.; CrystEngComm 12 (2010) 917–; doi:10.1039/b912539f

data_7211684
_publ_section_title
;
 Bifurcated hydrogen-bonded synthons in molecular complexes of picolines
 with chloranilic acid
;
_journal_issue                   3
_journal_name_full               CrystEngComm
_journal_page_first              917
_journal_paper_doi               10.1039/b912539f
_journal_volume                  12
_journal_year                    2010
_chemical_formula_moiety         '2(C6 H8 N), (C6 Cl2 O4)'
_chemical_formula_sum            'C18 H16 Cl2 N2 O4'
_chemical_formula_weight         395.24
_chemical_name_common            'bis(2-picoline) chloranilate'
_chemical_name_systematic        'bis(2-picoline) chloranilate'
_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
_cell_angle_alpha                90
_cell_angle_beta                 101.23(2)
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   6.398(3)
_cell_length_b                   8.657(4)
_cell_length_c                   16.684(7)
_cell_measurement_reflns_used    0
_cell_measurement_temperature    200
_cell_measurement_theta_max      0
_cell_measurement_theta_min      0
_cell_volume                     906.4(7)
_computing_cell_refinement       'CrystalClear 1.4.0 (Rigaku, 2008)'
_computing_data_collection       'CrystalClear 1.4.0 (Rigaku, 2008)'
_computing_data_reduction        'CrystalClear 1.4.0 (Rigaku, 2008)'
_computing_molecular_graphics    'CAMERON (Watkin et al., 1996)'
_computing_publication_material  'WINGX (Farrugia, 1999)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SIR92 (Altomare et al., 1994)'
_diffrn_ambient_temperature      200
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type
;
'Rigaku R-AXIS RAPID IP Image Plate diffractometer'
;
_diffrn_measurement_method       \w
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_type           'Mo K\a'
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0278
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -23
_diffrn_reflns_number            11669
_diffrn_reflns_theta_full        30.502
_diffrn_reflns_theta_max         30.502
_diffrn_reflns_theta_min         3.246
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.384
_exptl_absorpt_correction_T_max  0.9260
_exptl_absorpt_correction_T_min  0.8911
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'CrystalClear 1.4.0 (Rigaku, 2008)'
_exptl_crystal_colour            'dark red'
_exptl_crystal_density_diffrn    1.448
_exptl_crystal_description       block
_exptl_crystal_F_000             408
_exptl_crystal_size_max          0.40
_exptl_crystal_size_mid          0.30
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.308
_refine_diff_density_min         -0.314
_refine_ls_goodness_of_fit_ref   1.055
_refine_ls_hydrogen_treatment    refall
_refine_ls_matrix_type           full
_refine_ls_number_parameters     150
_refine_ls_number_reflns         2755
_refine_ls_number_restraints     0
_refine_ls_R_factor_all          0.0646
_refine_ls_R_factor_gt           0.046
_refine_ls_shift/su_max          0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0556P)^2^+0.2496P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_all         0.1218
_refine_ls_wR_factor_ref         0.1007
_reflns_limit_h_max              8
_reflns_limit_h_min              -9
_reflns_limit_k_max              12
_reflns_limit_k_min              0
_reflns_limit_l_max              23
_reflns_limit_l_min              0
_reflns_number_gt                2038
_reflns_number_total             2755
_reflns_threshold_expression     >2\s(I)
_oxford_structure_analysis_title '2pic200k in P 21/n'
_cod_data_source_file            b912539f.txt
_cod_data_source_block           2pic_2to1_200K
_cod_depositor_comments
;
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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_H-M      'P 1 21/c 1 '
_cod_database_code               7211684