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Crystal of the title complex K10H3[Dy(SiMo11O39)2]·29H2O(Mr= 4331.85) is monoclinic with space group P21/n,a= 17. 256(1) ,b = 26. 817(1) ,c = 21.797(1) A,β= 104. 39(1)°, V = 9770. 2 (A3), Z= 4, F (000) = 8140, and Dc= 2. 94g/cm3. The Dy3+ is coordinated by eight oxygen atoms from two tetradentate (SiMo11O39)8- ligands,forming a square antiprism. The cation K+ is coordinated by oxygen atoms from heteropoly ligands (SiMo11O39)8- and water molecules, the number of atoms that are coordinated to the potassium atoms can be divided into four groups:six,seven, eight and nine.
Crystal of the title complex K10H3 [Dy (SiMo11O39) 2] · 29H2O (Mr = 4331.85) is monoclinic with space group P21 / n, a = 17. 256 (1), b = 26. 817 (1), c = 21.797 (1) A, β = 104. 39 (1) °, V = 9770. 2 (A3), Z = 4, F (000) = 8140, and Dc = oxygen atoms from two tetradentate (SiMo11O39) 8-ligands, forming a square antiprism. The cation K + is coordinated by oxygen atoms from heteropolymers (SiMo11O39) 8- and water molecules, the number of atoms that are coordinated to the potassium atoms can be divided into four groups: six, seven, eight and nine.