کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1311831 | 975360 | 2005 | 8 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Salts of ammonium-crown ether supramolecular cation with bis(maleonitriledithiolato)copperate(II): Crystal structures, magnetic susceptibilities, single crystal EPR spectra and DFT calculation Salts of ammonium-crown ether supramolecular cation with bis(maleonitriledithiolato)copperate(II): Crystal structures, magnetic susceptibilities, single crystal EPR spectra and DFT calculation](/preview/png/1311831.png)
Two salts consisting of ammonium-crown ether supramolecular cation with bis(maleonitriledithiolato)copperate (II), (NH4)2(15-crown-5)3[Cu(mnt)2] (1) and (NH4)2(benzo-15-crown-5)4[Cu(mnt)2] · 0.5H2O (2), have been synthesized and structurally characterized. The distinct structures of supramolecular cation, an unusual triple-decker dication in 1 and a sandwich dimer in 2, were observed. X-band EPR studies on the single crystals of both 1 and 2 have been carried out at room temperature, which revealed that 1 possesses a single resonance line whereas 2 shows a perfect hyperfine structure. The spin-density distribution in the anionic moiety of 2 is calculated on DFT method and compared well with the experimental data.
The crystal structures, magnetic susceptibilities and single-crystal X-band EPR studies on two salts consisting of ammonium-crown ether supramolecular cation with bis(maleonitriledithiolato)copperate (II), (NH4)2(15-crown-5)3[Cu(mnt)2] (1) and (NH4)2(benzo-15-crown-5)4[Cu(mnt)2] · 0.5H2O (2) have been reported. The spin-density distribution in the anionic moiety of 2 are calculated by DFT method and compared with the experimental data.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 358, Issue 13, 1 September 2005, Pages 3841–3848