一种中性偕二锡/磷受阻路易斯酸碱对。
A Neutral Geminal Tin/Phosphorus Frustrated Lewis Pair.
作者信息
Holtkamp Philipp, Friedrich Felix, Stratmann Erik, Mix Andreas, Neumann Beate, Stammler Hans-Georg, Mitzel Norbert W
机构信息
Lehrstuhl für Anorganische Chemie und Strukturchemie, and Centrum für Molekulare Materialien CM2, Fakultät für Chemie, Universität Bielefeld, Universitätsstraße 25, 33615, Bielefeld, Germany.
出版信息
Angew Chem Int Ed Engl. 2019 Apr 1;58(15):5114-5118. doi: 10.1002/anie.201901037. Epub 2019 Mar 12.
The geminal frustrated Lewis pair (FLP) (F C ) SnCH P(tBu) (2) was prepared by reacting (F C ) SnCl with LiCH P(tBu) . It is neutral and contains an extremely electronegatively substituted, but relatively soft (hard-soft acid-base, HSAB) acidic tin function. Its FLP-type reactivity was proven by reaction with a variety of small molecules (CO , SO , CS , PhNCO, HCl, (Ph P)AuCl). However, it shows no reaction in H/D scrambling experiments with H /D mixtures and binds CO reversibly, as was observed by VT-NMR spectroscopy. Compound 2 and all its adducts were completely characterized by means of multinuclear NMR spectroscopy, elemental analysis, and X-ray diffraction experiments.
通过使(F C )SnCl与LiCH P(tBu)反应制备了偕二受阻路易斯酸碱对(FLP)(F C )SnCH P(tBu) (2)。它呈电中性，含有一个被极负电性取代但相对较软（软硬酸碱理论，HSAB）的酸性锡官能团。通过与多种小分子（CO 、SO 、CS 、PhNCO、HCl、(Ph P)AuCl）反应证明了其FLP型反应活性。然而，如变温核磁共振光谱所观察到的，它在与H /D混合物的H/D交换实验中不发生反应，并且能可逆地结合CO。化合物2及其所有加合物通过多核核磁共振光谱、元素分析和X射线衍射实验进行了全面表征。
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