| Multinuclear Nuclear Magnetic Resonance Studies of 〔VS_4 (CuPPh_3)_5 (CuCl) Br_2〕 |
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| 作者姓名： | CHEN Zhong YE Jian-Liang CAI Shu-Hui |
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| 作者单位： | CHEN Zhong ;YE Jian-Liang; CAI Shu-Hui(The Research Laboratory of SEDC of Analytical Science for Material and Life Chemistry(Department of Chemistry，Xiamen University，Xiamen 361005)(State Key Laboratory of Structural Chemistry，Fuzhou 350002)ZHENG Fa-Ku |
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| 摘 要： | 11NTRoDUCTIONThecomplexchemistryofthetetrathiometallatestMS,j"-(M=Mo,W,n==2lM=V,n=3)hasbeenextensivelyinvestigatedbecauseofitspotentialutilityinimi-tationofbiologicalsystems"'.Especially,vanadium-containingheterometallicsulfurcomplexesareofinterestasmodelsoftheactivesitesinmetalloenzymestobiomimeticchemistst2'33.Studiesonthiometalateandrelatedmultimetalcomplexeshavebeenmain1yaboutsynthesesandcrystalstructures,butNMRinvestigationswereraret43.SinceNMRspectroscopyrespondstothemagneticpro…
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Multinuclear Nuclear Magnetic Resonance Studies of 〔VS_4 (CuPPh_3)_5(CuCl) Br_2〕 |
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| CHEN Zhong ,YE Jian-Liang, CAI Shu-Hui.Multinuclear Nuclear Magnetic Resonance Studies of 〔VS_4 (CuPPh_3)_5(CuCl) Br_2〕[J].Chinese Journal of Structural Chemistry,1998(2). |
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| Authors: | CHEN Zhong YE Jian-Liang CAI Shu-Hui |
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| Abstract: | The structure, spectroscopic properties and chemical stability of VS4-(CuPPh3)3 (CuCl)Br2] in CDCl3 solution have been studied by multinuclear NMR tech-nique. Two peaks with relative intensity of 1: 4 are found in the31P-{1H} spectra.Some 13C-{1H} and 1H NMR peaks have the same integral intensity ratio. These com-plemented the results of 31P-{1H} NMR. The experimental results demonstrates that the PPh3 ligand bound to Cu(6) is not equivalent with the four PPh3 ligands bound toCu(2) ~Cu (5 )- It affords an evidence that the title compound in the solution keepssimilar structure to solid state. |
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| Keywords: | nuclear magnetic resonance V-Cu-S cluster transition metal complex |
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