کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9769885 | 1501934 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New solids from old cluster: Syntheses and structural characterization of [Zn(2,2â²-bpy)3]2[As8V14O42(H2O)]·4H2O and [Zn(2,2â²-bpy)(dien)]2[As8V14O42(H2O)]·2H2O
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: New solids from old cluster: Syntheses and structural characterization of [Zn(2,2â²-bpy)3]2[As8V14O42(H2O)]·4H2O and [Zn(2,2â²-bpy)(dien)]2[As8V14O42(H2O)]·2H2O New solids from old cluster: Syntheses and structural characterization of [Zn(2,2â²-bpy)3]2[As8V14O42(H2O)]·4H2O and [Zn(2,2â²-bpy)(dien)]2[As8V14O42(H2O)]·2H2O](/preview/png/9769885.png)
چکیده انگلیسی
Two new arsenic-vanadium clusters, [Zn(2,2â²-bpy)3]2[As8V14O42(H2O)]·4H2O (1, 2,2â²-bpy =2,2â²-bipyridine) and [Zn(2,2â²-bpy)(dien)]2[As8V14O42(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,P1¯, a=14.3793(2) Ã
, b=16.7706(2)Â Ã
, c=24.7077(1)Â Ã
, 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) Ã
, b=21.3442(7)Â Ã
, c=15.8837(7)Â Ã
, Z=4. X-ray crystallographic study showed that compound 1 is composed of the discrete [As8V14O42(H2O)]4- polyoxoanions and chiral [Zn(2,2â²-bpy)3]2+ cations, while compound 2 is constructed from [As8V14O42(H2O)]4â cluster anions and novel [Zn(2,2â²-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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 752, Issues 1â3, 14 October 2005, Pages 25-31
Journal: Journal of Molecular Structure - Volume 752, Issues 1â3, 14 October 2005, Pages 25-31
نویسندگان
Shou-Tian Zheng, Jie Zhang, Guo-Yu Yang,