School of Chemistry, University of Nottingham, University Park, Nottingham, UKNG7 2RD.
Dalton Trans. 2009 Sep 21(35):6924-6. doi: 10.1039/b906000f. Epub 2009 Apr 30.
Treatment of UCl(4) with one or two equivalents of IPr [IPr = {C(NArCH)(2)}, Ar = 2,6-diisopropylphenyl] gives [UCl(4)(IPr)(2)] as the sole isolable uranium-containing containing product; an X-ray diffraction study showed close Cl...C(carbene) contacts, but DFT analysis suggests the contacts are the result of aryl chloride steric repulsions as the Cl...C orbital interaction is negligible.
用一个或两个当量的 IPr[IPr={C(NArCH)(2)}，Ar=2,6-二异丙基苯基]处理 UCl(4)，得到唯一可分离的含铀产物[UCl(4)(IPr)(2)]；X 射线衍射研究表明存在紧密的 Cl...C(碳烯)接触，但 DFT 分析表明这些接触是由于芳基氯的空间位阻造成的，因为 Cl...C 轨道相互作用可以忽略不计。
