TY - JOUR
T1 - New solids from old cluster
T2 - Syntheses and structural characterization of [Zn(2,2′-bpy)3]2[As8V14O 42(H2O)]·4H2O and [Zn(2,2′-bpy) (dien)]2[As8V14O42(H 2O)]·2H2O
AU - Zheng, Shou Tian
AU - Zhang, Jie
AU - Yang, Guo Yu
PY - 2005/10/14
Y1 - 2005/10/14
N2 - Two new arsenic-vanadium clusters, [Zn(2,2′-bpy)3] 2[As8V14O42(H2O)] ·4H2O (1, 2,2′-bpy =2,2′-bipyridine) and [Zn(2,2′-bpy)(dien)]2[As8V14O 42(H2O)]·2H2O (2, dien= diethylenetriamine), have been hydrothermally synthesized and characterized by IR, elemental analysis, EPR, XRD, TGA, magnetic measurements, and single-crystal X-ray diffraction analysis. Crystal data: 1, triclinic,P1̄, a=14.3793(2) Å, b=16.7706(2) Å, c=24.7077(1) Å, α=93.740(1)°, β=93.182(1)°, γ=113.363(1)°, Z=2; 2 orthorhombic, P4(3)2(1)2, a=21.3442(7) Å, b=21.3442(7) Å, c=15.8837(7) Å, Z=4. X-ray crystallographic study showed that compound 1 is composed of the discrete [As8V14O42(H2O)]4- polyoxoanions and chiral [Zn(2,2′-bpy)3]2+ cations, while compound 2 is constructed from [As8V14O 42(H2O)]4- cluster anions and novel [Zn(2,2′-bpy)(dien)]2+ complex fragments linked through hydrogen bonds into a network. Variable temperature susceptibility measurements demonstrate the presence of antiferromagnetic interaction between VIV cations in 1 and 2.
AB - Two new arsenic-vanadium clusters, [Zn(2,2′-bpy)3] 2[As8V14O42(H2O)] ·4H2O (1, 2,2′-bpy =2,2′-bipyridine) and [Zn(2,2′-bpy)(dien)]2[As8V14O 42(H2O)]·2H2O (2, dien= diethylenetriamine), have been hydrothermally synthesized and characterized by IR, elemental analysis, EPR, XRD, TGA, magnetic measurements, and single-crystal X-ray diffraction analysis. Crystal data: 1, triclinic,P1̄, a=14.3793(2) Å, b=16.7706(2) Å, c=24.7077(1) Å, α=93.740(1)°, β=93.182(1)°, γ=113.363(1)°, Z=2; 2 orthorhombic, P4(3)2(1)2, a=21.3442(7) Å, b=21.3442(7) Å, c=15.8837(7) Å, Z=4. X-ray crystallographic study showed that compound 1 is composed of the discrete [As8V14O42(H2O)]4- polyoxoanions and chiral [Zn(2,2′-bpy)3]2+ cations, while compound 2 is constructed from [As8V14O 42(H2O)]4- cluster anions and novel [Zn(2,2′-bpy)(dien)]2+ complex fragments linked through hydrogen bonds into a network. Variable temperature susceptibility measurements demonstrate the presence of antiferromagnetic interaction between VIV cations in 1 and 2.
KW - Arsenic
KW - Crystal structure
KW - Hydrothermal synthesis
KW - Polyoxometalate
KW - Vanadium
UR - http://www.scopus.com/inward/record.url?scp=25144440135&partnerID=8YFLogxK
U2 - 10.1016/j.molstruc.2005.05.017
DO - 10.1016/j.molstruc.2005.05.017
M3 - Article
AN - SCOPUS:25144440135
SN - 0022-2860
VL - 752
SP - 25
EP - 31
JO - Journal of Molecular Structure
JF - Journal of Molecular Structure
IS - 1-3
ER -