Two coordination networks based on V-shaped bis(p-carboxyphenyl)diphenylsilane (cpdps) ligand and Mn(II) ions: {[Mn5L(cpdps)4(HCOO)2(H2O)2(DMF)4]·6DMF}n (I) and {Mn3(μ-H2O)2(Hcpdps)2(cpdps)2(DMF)2]∙2DMF∙12H2O}n (II) were synthesized by conventional and solvotheramal methods and structurally characterized by X-ray single crystal diffraction. The pentanuclear and trinuclear manganese clusters in I and II, respectively, act as SBUs, while the V-shaped ligand links the SBUs leading to 2D coordination networks (Fig. 1).figureFigure 1. Obtaining of the Mn(II) coordination networks by conventional (I) and solvothermal (II) methods Magnetic susceptibility measurements in the 0-300 K range of both coordination networks show the existence of anti-ferromagnetic exchange interactions between the Mn(II) ions. The thermogravimetrical data revealed a good thermal stability of both complexes, while the results of the water vapor sorption capacity in dynamic regime indicated good moisture stability of the manganese(II) coordination networks