data_2011850
_journal_name_full  'Acta Crystallographica, Section C'
_journal_year  2001
_journal_volume  57
_journal_page_first  349
_journal_page_last  351
_publ_section_title
;
Bis(2,2-bipyridine-N,N')-tetra-\m-chloro-tetracopper(I)
;
loop_
_publ_author_name
  'Cui, Yong'
  'Chen, Jiutong'
  'Ren, Jing'
  'Chen, Gang'
  'Yu, Weichao'
  'Qian, Yitai'
_chemical_formula_moiety  'C20 H16 Cl4 Cu4 N4'
_chemical_formula_sum  'C20 H16 Cl4 Cu4 N4'
_chemical_formula_iupac  '[Cu4 Cl4 (C10 H8 N2 ) 2 ]'
_chemical_formula_weight  708.33
_symmetry_cell_setting  'triclinic'
_symmetry_space_group_name_H-M  'P -1'
loop_
_symmetry_equiv_pos_as_xyz
  'x, y, z'
  '-x, -y, -z'
_cell_length_a  7.4252(8)
_cell_length_b  9.4231(7)
_cell_length_c  9.4957(9)
_cell_angle_alpha  64.253(2)
_cell_angle_beta  74.117(2)
_cell_angle_gamma  88.504(2)
_cell_volume  572.28(9)
_cell_formula_units_Z  1
_cell_measurement_temperature  293(2)
_exptl_crystal_density_diffrn  2.055
_diffrn_ambient_temperature  293(2)
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
_atom_site_adp_type
_atom_site_calc_flag
_atom_site_refinement_flags
_atom_site_occupancy
_atom_site_disorder_assembly
_atom_site_disorder_group
_atom_site_type_symbol
  Cu1  .36488(12)  .37281(9)  .76046(9)  .0564(4) Uani d . 1 . . Cu
  Cu2  .27638(12)  .55493(9)  .46479(10)  .0557(3) Uani d . 1 . . Cu
  Cl1  .1289(2)  .33153(19)  .6406(2)  .0523(4) Uani d . 1 . . Cl
  Cl2  .4053(2)  .78493(18)  .2887(2)  .0518(4) Uani d . 1 . . Cl
  N1  .2068(7)  .2786(6) 1.0056(6)  .0446(12) Uani d . 1 . . N
  N2  .3850(6)  .5683(6)  .7967(6)  .0397(11) Uani d . 1 . . N
  C1  .1200(10)  .1323(8) 1.1047(8)  .0550(16) Uani d . 1 . . C
  H1A  .1354  .0562 1.0660  .066 Uiso calc R 1 . . H
  C2  .0090(10)  .0902(8) 1.2617(8)  .0586(18) Uani d . 1 . . C
  H2A  -.0520  -.0119 1.3266  .070 Uiso calc R 1 . . H
  C3  -.0109(10)  .1998(8) 1.3214(8)  .0544(16) Uani d . 1 . . C
  H3A  -.0825  .1726 1.4283  .065 Uiso calc R 1 . . H
  C4  .0765(9)  .3504(8) 1.2213(7)  .0491(15) Uani d . 1 . . C
  H4A  .0614  .4272 1.2592  .059 Uiso calc R 1 . . H
  C5  .1868(8)  .3884(7) 1.0642(7)  .0384(12) Uani d . 1 . . C
  C6  .2898(8)  .5478(6)  .9489(6)  .0368(12) Uani d . 1 . . C
  C7  .2915(9)  .6699(7)  .9929(8)  .0455(14) Uani d . 1 . . C
  H7A  .2251  .6543 1.0978  .055 Uiso calc R 1 . . H
  C8  .3911(10)  .8139(8)  .8816(8)  .0522(16) Uani d . 1 . . C
  H8A  .3937  .8963  .9103  .063 Uiso calc R 1 . . H
  C9  .4873(9)  .8342(8)  .7267(8)  .0483(14) Uani d . 1 . . C
  H9A  .5557  .9307  .6490  .058 Uiso calc R 1 . . H
  C10  .4807(9)  .7103(7)  .6889(8)  .0455(14) Uani d . 1 . . C
  H10B  .5453  .7250  .5840  .055 Uiso calc R 1 . . H
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
  Cu1  .0737(6)  .0552(6)  .0444(5)  .0022(4)  -.0044(4)  -.0331(4)
  Cu2  .0681(6)  .0521(5)  .0497(5)  -.0014(4)  -.0079(4)  -.0303(4)
  Cl1  .0543(9)  .0551(9)  .0513(9)  -.0020(7)  -.0133(7)  -.0276(8)
  Cl2  .0597(10)  .0452(9)  .0524(9)  .0068(7)  -.0105(7)  -.0270(7)
  N1  .052(3)  .045(3)  .044(3)  .009(2)  -.017(2)  -.025(2)
  N2  .036(3)  .049(3)  .043(3)  .009(2)  -.012(2)  -.029(2)
  C1  .066(4)  .052(4)  .054(4)  .005(3)  -.017(3)  -.030(3)
  C2  .064(4)  .053(4)  .048(4)  .004(3)  -.019(3)  -.012(3)
  C3  .062(4)  .060(4)  .035(3)  .006(3)  -.008(3)  -.019(3)
  C4  .061(4)  .055(4)  .042(3)  .016(3)  -.017(3)  -.031(3)
  C5  .039(3)  .047(3)  .040(3)  .011(2)  -.015(2)  -.027(3)
  C6  .043(3)  .044(3)  .035(3)  .011(2)  -.018(2)  -.024(3)
  C7  .056(4)  .048(4)  .046(3)  .008(3)  -.015(3)  -.033(3)
  C8  .064(4)  .051(4)  .060(4)  .008(3)  -.027(3)  -.036(3)
  C9  .048(3)  .049(4)  .054(4)  .003(3)  -.016(3)  -.028(3)
  C10  .048(3)  .048(4)  .045(3)  .003(3)  -.010(3)  -.026(3)
loop_
_geom_bond_atom_site_label_1
_geom_bond_atom_site_label_2
_geom_bond_site_symmetry_2
_geom_bond_distance
_geom_bond_publ_flag
  Cu1 N1 . 2.085(5) Y
  Cu1 N2 . 2.032(5) Y
  Cu1 Cl1 . 2.4556(18) Y
  Cu1 Cl2 2_666 2.3184(17) Y
  Cu2 Cl1 . 2.1176(18) Y
  Cu2 Cl2 . 2.1196(18) Y
  Cu1 Cu2 . 2.8327(12) Y
  Cu1 Cu2 2_666 2.8008(12) Y
  N1 C1 . 1.337(8) ?
  N1 C5 . 1.360(7) ?
  N2 C10 . 1.343(8) ?
  N2 C6 . 1.353(7) ?
  C1 C2 . 1.375(10) ?
  C2 C3 . 1.365(10) ?
  C3 C4 . 1.370(10) ?
  C4 C5 . 1.382(8) ?
  C5 C6 . 1.487(8) ?
  C6 C7 . 1.386(8) ?
  C7 C8 . 1.372(9) ?
  C8 C9 . 1.378(9) ?
  C9 C10 . 1.368(9) ?