The title compound, [Mn_4(O_2CH)_4(phen)_8](ClO_4)_4·6H_2O (1), where phen= 1,10-phenanthroline, was synthesized and its crystal structure was determined by X-ray diffraction structure analysis. The crystal is of monoclinic, space group P2/c with a= 1.928 0(16) nm, b = 1.297 0(11) nm, c =2.126 4(18) nm, V=5.242 2(8) nm~3, Z=2, M_r=2 347.36,D, c=1.487 g·cm~(-3)，μ=0.659 mm-1, F(000)=2 400, R_(int)=0.043 7, R=0.052 3, wR=0.118 6. The Mn atoms are octahedrally coordinated by two O atoms of two ligands and four N atoms of two 1,10-phenanthroline molecules. The carboxyl group...
