Acta Crystallographica Section C  Crystal Structure
Communications  Volume 68, Part 9 (September 2012)  metal-
organic compounds  sk3444 scheme  Acta Cryst. (2012). C68,
m255-m258    [ doi:10.1107/S0108270112033616 ]  [mu]-4,4'-
Bipyridine-[kappa]2N:N'-bis­[tetra­aqua­(4,4'-bipyridine-
[kappa]N)diman­gan­ese(II)] bis­(4-amino­benzoate)
bis­(perchlorate)-4,4'-bipyridine-water (1/2/4): a
supra­molecular system constructed by [pi]-[pi] and hydrogen-
bond inter­actions  J. Wang, J. Gao and W. Zhao  Abstract: The
title dinuclear manganese compound,
[Mn2(C10H8N2)3(H2O)8](C7H6NO2)2(ClO4)2·2C10H8N2·4H2O, (I), has
an inversion center located midway between the MnII ions. Each
MnII ion has a distorted octa­hedral coordination environment,
defined by two mutually cis N atoms from two different
4,4'-bipyridine (4,4'-bipy) ligands and four O atoms from four
water mol­ecules. The asymmetric unit contains cationic
[Mn(4,4'-bipy)1.5(H2O)4]2+, one isolated 4,4'-bipy mol­ecule,
one 4-amino­benzoate ion, one disordered perchlorate