Crystal engineering through charge-assisted hydrogen bonds, multiple C–H⋯O bonds and π–π stacking: from (H2bipy)[Cu(ox)2] to (H2bipy)[NaH(ox)2] and (H2bipy)[H2(ox)2] (H2bipy = 4,4′-bipyridin-1,1′-dium; ox = oxalate)
Chen, Xiaocui; Han, Shumin; Wang, Ruiyao; CrystEngComm 14 (2012) 6400–; doi:10.1039/c2ce06516a

data_7208642
_publ_section_title
;
 Crystal engineering through charge-assisted hydrogen bonds, multiple
 C--H&#x22EF;O bonds and \p--\p stacking: from (H2bipy)[Cu(ox)2] to
 (H2bipy)[NaH(ox)2] and (H2bipy)[H2(ox)2] (H2bipy =
 4,4&#x2032;-bipyridin-1,1&#x2032;-dium; ox = oxalate)
;
_journal_issue                   20
_journal_name_full               CrystEngComm
_journal_page_first              6400
_journal_paper_doi               10.1039/c2ce06516a
_journal_volume                  14
_journal_year                    2012
_chemical_formula_sum            'C14 H12 N2 O8'
_chemical_formula_weight         336.26
_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
_audit_creation_method           SHELXL-97
_cell_angle_alpha                116.081(7)
_cell_angle_beta                 97.186(7)
_cell_angle_gamma                97.626(5)
_cell_formula_units_Z            1
_cell_length_a                   3.7117(17)
_cell_length_b                   9.871(4)
_cell_length_c                   10.440(7)
_cell_measurement_reflns_used    885
_cell_measurement_temperature    180(2)
_cell_measurement_theta_max      26.08
_cell_measurement_theta_min      2.35
_cell_volume                     333.2(3)
_computing_cell_refinement       'SAINT (Bruker, 2009)'
_computing_data_collection       'APEX2 (Bruker, 2010)'
_computing_data_reduction        'SAINT (Bruker, 2009)'
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL (Sheldrick, 2008)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      180(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Bruker APEX-II CCD'
_diffrn_measurement_method       '\f and \w scans'
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0308
_diffrn_reflns_av_sigmaI/netI    0.0418
_diffrn_reflns_limit_h_max       4
_diffrn_reflns_limit_h_min       -4
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -12
_diffrn_reflns_number            3259
_diffrn_reflns_theta_full        26.00
_diffrn_reflns_theta_max         26.00
_diffrn_reflns_theta_min         2.22
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    0.140
_exptl_absorpt_correction_T_max  0.9916
_exptl_absorpt_correction_T_min  0.9725
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Bruker, 2008)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.676
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             174
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.06
_refine_diff_density_max         0.210
_refine_diff_density_min         -0.232
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.026
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     113
_refine_ls_number_reflns         1315
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.026
_refine_ls_R_factor_all          0.0649
_refine_ls_R_factor_gt           0.0441
_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^)+(0.0736P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1147
_refine_ls_wR_factor_ref         0.1267
_reflns_number_gt                934
_reflns_number_total             1315
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ce06516a.txt
_cod_data_source_block           compound3
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Triclinic' changed to 'triclinic'
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
_cod_database_code               7208642