Synthesis and Characterization of the 4,4'-Bipyridyl Dianion and Radical Monoanion. A Structural Study
Mark S. Denning; Mark Irwin; Jose M. Goicoechea; Inorganic Chemistry 47 (2008) 6118–6120; doi:10.1021/ic800726p

data_4305772
_publ_contact_author
;
 Dr. J. M. Goicoechea           
 Chemistry Research Laboratory
 University of Oxford
 Mansfield Road
 Oxford
 OX1 3TA
 UK
;
_publ_contact_author_email       jose.goicoechea@chem.ox.ac.uk
_publ_contact_author_fax         '+44 1865 272690'
_publ_contact_author_phone       '+44 1865 275961'
_publ_section_title
;
Synthesis and Characterization of the 4,4'-Bipyridyl Dianion and Radical
Monoanion. A Structural Study
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              6118
_journal_page_last               6120
_journal_paper_doi               10.1021/ic800726p
_journal_volume                  47
_journal_year                    2008
_chemical_formula_moiety         'C20 H16 N4 Na, C4 H16 N4 Na'
_chemical_formula_sum            'C24 H32 N8 Na2'
_chemical_formula_weight         478.56
_chemical_name_systematic
; 
[Na(C2N2H8)2][Na(bipy)2]
;
_space_group_IT_number           14
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_symmetry_space_group_name_Hall  '-P 2ybc'
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_atom_sites_solution_hydrogens   geom
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_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 104.7626(6)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.7528(1)
_cell_length_b                   16.1943(2)
_cell_length_c                   17.2751(3)
_cell_measurement_temperature    150(2)
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_computing_cell_refinement
;
KappaCCD software "DENZO" (Otwinowski & Minor, 1996)
;
_computing_data_collection
;
KappaCCD software "Collect" (Nonius, 2000)
;
_computing_data_reduction
;
KappaCCD software "DENZO" (Otwinowski & Minor, 1996)
;
_computing_molecular_graphics    'WinGX (Farrugia, 2005)'
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_diffrn_ambient_temperature      150(2)
_diffrn_measured_fraction_theta_full 0.990
_diffrn_measured_fraction_theta_max 0.990
_diffrn_measurement_device_type  'Nonius KappaCCD'
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_diffrn_radiation_monochromator  graphite
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_diffrn_reflns_limit_k_min       -20
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_diffrn_reflns_theta_full        27.53
_diffrn_reflns_theta_max         27.53
_diffrn_reflns_theta_min         5.18
_exptl_absorpt_coefficient_mu    0.104
_exptl_absorpt_correction_T_max  0.9917
_exptl_absorpt_correction_T_min  0.9755
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'DENZO/SCALEPACK (Otwinowski & Minor, 1997)'
_exptl_crystal_colour            'dark purple'
_exptl_crystal_density_diffrn    1.205
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       rod
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_refine_ls_number_reflns         6016
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.024
_refine_ls_R_factor_all          0.0611
_refine_ls_R_factor_gt           0.0436
_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^)+(0.0639P)^2^+0.6408P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
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_reflns_threshold_expression     >2sigma(I)
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_cod_data_source_block           p21c
_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 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 

The following automatic conversions were performed:
data name '_contact_author_fax' replaced with
'_publ_contact_author_fax' as specified in the replacement file
'/home/antanas/src/cod-tools/trunk/data/replacement-values/replacement_tags.lst'.

Automatic conversion script
Id: cif_correct_tags 4998 2017-03-02 13:24:31Z antanas 
;
_cod_original_cell_volume        2638.63(6)
_cod_database_code               4305772