Institut für Anorganische Chemie, Georg-August-Universität, Tammannstrasse 4, D-37077 Göttingen, Germany.
J Am Chem Soc. 2012 Mar 14;134(10):4998-5003. doi: 10.1021/ja300563g. Epub 2012 Mar 1.
Cationic and anionic species of heavier low-valent group 14 elements are intriguing targets in main group chemistry due to their synthetic potential and industrial applications. In the present study, we describe the synthesis of cationic (MCl(+)) and anionic (MCl(3)(-)) species of heavier low-valent group 14 elements of germanium(II) and tin(II) by using the substituted Schiff base 2,6-diacetylpyridinebis(2,6-diisopropylanil) as Lewis base (LB). Treatment of LB with 2 equiv of GeCl(2)·dioxane and SnCl(2) in toluene gives compounds (LB)Ge(II)ClGe(II)Cl(3) (1) and (LB)Sn(II)ClSn(II)Cl(3) (2), respectively, which possess each a low-valent cation and an anion. Compounds 1 and 2 are well characterized with various spectroscopic methods and single crystal X-ray structural analysis.
由于其合成潜力和工业应用，重低化合价 14 族元素的阳离子和阴离子物种是主族化学中有趣的目标。在本研究中，我们描述了使用取代的席夫碱 2,6-二乙酰基吡啶双（2,6-二异丙基苯胺）作为路易斯碱（LB）合成重低化合价 14 族元素锗（II）和锡（II）的阳离子（MCl(+)) 和阴离子（MCl(3)(-)) 物种。LB 与 2 当量的 GeCl(2)·二恶烷和 SnCl(2)在甲苯中反应，分别得到化合物(LB)Ge(II)ClGe(II)Cl(3) (1) 和 (LB)Sn(II)ClSn(II)Cl(3) (2)，它们各自具有低价阳离子和阴离子。通过各种光谱方法和单晶 X 射线结构分析对化合物 1 和 2 进行了很好的表征。
