electrospray mass spectrometry. The UV-visible spectra have been analysed and the low 10Dq and large B values, are consistent with weak binding of the soft selenium ligands to the hard CrIII. Chromium K-edge EXAFS data has been recorded and analysed for the chromium chloride complexes to produce CrSe and CrCl distances, which provide further strong evidence for weak CrIII-selenoether interactions.
摘要[CrX3(thf)3](X = Cl或Br)与等量三
硒醚MeC(CH2SeMe)3和Se(CH2CH2CH2SeMe)2(L)的反应形成了对
水分非常敏感的[CrX3L]配合物。大环[16] aneSe4(1,5,9,13-四
硒环十六烷)形成[CrX2([16] aneSe4)] PF6。通过分析,红外和紫外可见光谱以及电喷雾质谱对复合物进行了表征。分析了紫外可见光谱,低10Dq和大B值与软
硒配体与硬CrIII的弱结合相符。记录并分析了
铬K边缘EXAFS数据中的
氯化
铬配合物以生成CrSe和CrCl距离,这为CrIII-
硒醚相互作用弱提供了进一步的有力证据。