Bis(μ₂-dihydrogen phosphato-κ²O:O′)(μ₂-hydrogen phosphato-κ²O:O′)bis[(1,10-phenanthroline-κ²N,N′)manganese(II)]

Abstract

In the title manganese phosphate, [Mn2(C12H8N2)2(H1.5PO4)2(H2PO4)], a crystallographic twofold rotation axis passes through the bridging H atom and the P atom carrying two OH groups. The structure consists of distorted trigonal–bipyramidal MnO3N2 and tetrahedral PO4 units linked through their vertices, giving rise to a discrete dinuclear molecular structure. The crystal structure is stabilized by intermolecular hydrogen bonds and strong π–π stacking interactions (the distance between adjacent phenanthroline rings is 3.24 Å).

Models to predict the magnetic properties of single- and multiple-bridged phosphate CuII systems: a theoretical DFT insight

“…23 Hence, this ligand can be found in both molecular and extended polymetallic systems, where it bridges two or more cationic centres. [24][25][26][27][28][29][30][31][32][33][34][35][36][37] As can be understood from the Cambridge Structural Database, CSD, 38 many first transition metal ion phosphates have been reported, but copper based systems are one of the most studied. Among the molecular complexes, the best known are the dinuclear copper phosphate bridged ones, while the tetranuclear and trinuclear species have been less investigated.…”