TY - JOUR
T1 - Combination of lacunary polyoxometalates and high-nuclear transition metal clusters under hydrothermal conditions. 3. Structure and characterization of [Cu(enMe)2]2{[Cu(enMe)2(H2O)] 2[Cu6(enMe)2(B-a-SiW9O 34)2]}·4H2O
AU - Zheng, Shou Tian
AU - Yuan, Da Qiang
AU - Zhang, Jie
AU - Yang, Guo Yu
PY - 2007/5/28
Y1 - 2007/5/28
N2 - A novel sandwich-type polyoxometalate incorporating a unique hybrid hexanuclear copper cluster, [Cu(enMe)2]2-{[Cu(enMe) 2(H2O)]2[Cu6(enMe) 2(B-a-SiW9O34)2]}·4H 2O (1, enMe = 1,2-diaminopropane), has been hydrothermally synthesized and structurally characterized by the elemental analyses, IR spectroscopy, TG analysis, magnetic properties, and single-crystal X-ray diffraction analysis. Crystal data for 1: triclinic, P1; a = 12.5105(2), b = 14.3710-(2), c = 17.2687(2) Å; α = 98.834(1), β = 110.744(1), γ = 104.711(1)°; V = 2704.57(7) Å3; ρ = 3.646 g/cm3; Z = 1. X-ray crystallographic study shows that the molecular structure of 1 contains 10 copper ions: Six of them form an unprecedented inorganic-organic hybrid Cu6 cluster via edge-sharing combination of two CuO6 octahedra, two CuO5, and two CuO 3N2 square pyramids and are encapsulated between two {B-a-SiW9O34} units. Two of them form two [Cu(enMe) 2(H2O)]2+ complexes and further attach to the two {B-a-SiW9O34} units via two Cu-O= W bridges, acting as a decorated role. The remaining two form isolated [Cu(enMe)2] 2+ complexes playing roles of charge-compensation and space-fillers. Magnetization measurement reveals that the hexanuclear copper cluster exhibits overall ferromagnetic interactions.
AB - A novel sandwich-type polyoxometalate incorporating a unique hybrid hexanuclear copper cluster, [Cu(enMe)2]2-{[Cu(enMe) 2(H2O)]2[Cu6(enMe) 2(B-a-SiW9O34)2]}·4H 2O (1, enMe = 1,2-diaminopropane), has been hydrothermally synthesized and structurally characterized by the elemental analyses, IR spectroscopy, TG analysis, magnetic properties, and single-crystal X-ray diffraction analysis. Crystal data for 1: triclinic, P1; a = 12.5105(2), b = 14.3710-(2), c = 17.2687(2) Å; α = 98.834(1), β = 110.744(1), γ = 104.711(1)°; V = 2704.57(7) Å3; ρ = 3.646 g/cm3; Z = 1. X-ray crystallographic study shows that the molecular structure of 1 contains 10 copper ions: Six of them form an unprecedented inorganic-organic hybrid Cu6 cluster via edge-sharing combination of two CuO6 octahedra, two CuO5, and two CuO 3N2 square pyramids and are encapsulated between two {B-a-SiW9O34} units. Two of them form two [Cu(enMe) 2(H2O)]2+ complexes and further attach to the two {B-a-SiW9O34} units via two Cu-O= W bridges, acting as a decorated role. The remaining two form isolated [Cu(enMe)2] 2+ complexes playing roles of charge-compensation and space-fillers. Magnetization measurement reveals that the hexanuclear copper cluster exhibits overall ferromagnetic interactions.
UR - https://www.scopus.com/pages/publications/34250699523
U2 - 10.1021/ic070160c
DO - 10.1021/ic070160c
M3 - Article
AN - SCOPUS:34250699523
SN - 0020-1669
VL - 46
SP - 4569
EP - 4574
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 11
ER -