A [205T1]-thallium NMR study of thallium(I) and thallium(III) fluorometalates in acetonitrile

203,205Tl NMR Studies of Crystallographically Characterized Thallium Alkoxides. X-ray Structures of [Tl(OCH2CMe3)]4 and [Tl(OAr)]∞, Where OAr = OC6H3(Me)2-2,6 and OC6H3(CHMe2)2-2,6

“…The dependence of the 205 Tl chemical shift on both solvent and concentration has been reported for numerous Tl(I) complexes. ,, This characteristic has even been exploited as a means of establishing solvent donor numbers. , The Tl chemical shift dependence upon concentration is generally less significant, as evidenced by an order of magnitude variation in concentrations for both 1 and 5 , which resulted in only slight chemical shift differences (<20 ppm). For the cubane structure of 4 , the seven-line 203 Tl resonance was found to exist independently of the solvent utilized for dissolution and was observed at very similar frequencies (<20 ppm difference).…”

“…Chemical shift values for 5 are not included in Figure 7 The dependence of the 205 Tl chemical shift on both solvent and concentration has been reported for numerous Tl(I) complexes. 45,50,51 This characteristic has even been exploited as a means of establishing solvent donor numbers. 52,53 The Tl chemical shift dependence upon concentration is generally less significant, as evidenced by an order of magnitude variation in concentrations for both 1 and 5, which resulted in only slight chemical shift differences (<20 ppm).…”