1,1'-Diethyl-4,4'-bipyridine-1,1'-diium bis(1,1,3,3-tetracyano-2-ethoxypropenide): multiple C—H···N hydrogen bonds form a complex sheet structure
Setifi, Zouaoui; Lehchili, Fouzia; Setifi, Fatima; Beghidja, Adel; Ng, Seik Weng; Glidewell, Christopher; Acta Crystallographica Section C 70 (2014) 338–341; doi:10.1107/S2053229614004379

data_2019492
_publ_section_title
;
 1,1'-Diethyl-4,4'-bipyridine-1,1'-diium
 bis(1,1,3,3-tetracyano-2-ethoxypropenide): multiple
 C---H&#x00B7;&#x00B7;&#x00B7;N hydrogen bonds form a complex sheet
 structure
;
_journal_coeditor_code           SK3538
_journal_issue                   3
_journal_name_full               'Acta Crystallographica Section C'
_journal_page_first              338
_journal_page_last               341
_journal_paper_doi               10.1107/S2053229614004379
_journal_volume                  70
_journal_year                    2014
_chemical_formula_iupac          'C14 H18 N2 2+, 2C9 H5 N4 O -'
_chemical_formula_moiety         'C14 H18 N2 2+, 2(C9 H5 N4 O -)'
_chemical_formula_sum            'C32 H28 N10 O2'
_chemical_formula_weight         584.64
_chemical_name_systematic
;
1,1'-Diethyl-4,4'-bipyridine-1,1'-diium
bis(1,1,3,3-tetracyano-2-ethoxypropenide
;
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_computing_cell_refinement       'APEX2 and SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2009)'
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'SHELXL97 (Sheldrick, 2008) and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker APEXII CCD'
_diffrn_measurement_method       '\w--2\q scans'
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_diffrn_reflns_theta_max         27.50
_diffrn_reflns_theta_min         2.43
_diffrn_standards_decay_%        0
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_exptl_absorpt_process_details   '(SADABS; Sheldrick, 2003)'
_exptl_crystal_colour            'pale yellow'
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_exptl_crystal_description       block
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_refine_diff_density_min         -0.212
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_refine_ls_R_factor_all          0.0722
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_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0432P)^2^+0.5424P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     I>2\s(I)
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_cod_original_cell_volume        1561.46(16)
_cod_original_sg_symbol_H-M      'P 21/c'
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_cod_database_fobs_code          2019492