Synthesis and solid-state supramolecular chemistry of a series of pyridinium-derived zwitterions
Loots, Leigh; Haynes, Delia A.; Roex, Tanya le; New Journal of Chemistry 38 (2014) 2778–; doi:10.1039/c4nj00281d

data_7054162
_publ_section_title
;
 Synthesis and solid-state supramolecular chemistry of a series of
 pyridinium-derived zwitterions
;
_journal_issue                   7
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              2778
_journal_paper_doi               10.1039/c4nj00281d
_journal_volume                  38
_journal_year                    2014
_chemical_formula_moiety         '2(C11 H10 N), C4 O4, C H4 O'
_chemical_formula_sum            'C27 H24 N2 O5'
_chemical_formula_weight         456.48
_chemical_melting_point          378
_chemical_name_common            \6a
_chemical_name_systematic
;
bis(4-phenylpyridinium) carboxy-propynoate methanol solvate
;
_space_group_crystal_system      monoclinic
_space_group_IT_number           14
_space_group_name_Hall           '-P 2yn'
_space_group_name_H-M_alt        'P 1 21/n 1'
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   mixed
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_cell_measurement_reflns_used    1950
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_computing_molecular_graphics
'X-Seed (Barbour, 2001; Atwood & Barbour, 2003)'
_computing_structure_refinement  'SHELXL-2012 (Sheldrick, 2012)'
_computing_structure_solution    'SHELXL-2012 (Sheldrick, 2012)'
_diffrn_ambient_temperature      100(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.977
_diffrn_measurement_device_type  'Bruker APEX CCD area -detector'
_diffrn_measurement_method       \w
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0535
_diffrn_reflns_av_unetI/netI     0.0716
_diffrn_reflns_Laue_measured_fraction_full 0.999
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_diffrn_reflns_limit_k_min       -9
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_diffrn_reflns_limit_l_min       -25
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_diffrn_reflns_point_group_measured_fraction_full 0.999
_diffrn_reflns_point_group_measured_fraction_max 0.977
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.572
_diffrn_reflns_theta_min         1.957
_diffrn_source                   'fine-focus sealed tube'
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.092
_exptl_absorpt_correction_T_max  1.000
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_exptl_absorpt_correction_type   numerical
_exptl_absorpt_process_details   'SADABS, 2012'
_exptl_crystal_colour            colourless
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_exptl_crystal_description       shard
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_refine_diff_density_rms         0.058
_refine_ls_extinction_method     none
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_refine_ls_hydrogen_treatment    mixed
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_refine_ls_number_parameters     320
_refine_ls_number_reflns         5190
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      0.976
_refine_ls_R_factor_all          0.1013
_refine_ls_R_factor_gt           0.0532
_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^)+(0.0625P)^2^]
 where P=(Fo^2^+2Fc^2^)/3
;
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1166
_refine_ls_wR_factor_ref         0.1408
_reflns_Friedel_coverage         0.000
_reflns_number_gt                3043
_reflns_number_total             5190
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c4nj00281d2.cif
_cod_data_source_block           6a
_cod_depositor_comments
'Adding full bibliography for 7054154--7054163.cif.'
_cod_database_code               7054162
_shelx_estimated_absorpt_t_min   0.968
_shelx_estimated_absorpt_t_max   0.986
_shelxl_version_number           2012-9
_shelx_res_checksum              70332