Bis(phosphangulene)iminium Salts. Holding on to Fullerenes with Phangs,Crystal Growth & Design

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Bis(phosphangulene)iminium Salts. Holding on to Fullerenes with Phangs
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2020-01-23 , DOI: 10.1021/acs.cgd.9b01568
Alice Heskia ₁ , Thierry Maris ₁ , James D. Wuest ₁

Affiliation

Phosphangulene (“Phang”) is an analogue of triphenylphosphine with a conical shape and electron-rich aromatic surface that complements the electron-poor surface of fullerenes, both geometrically and electronically. Large molecular surfaces with multiple areas of concavity can be made by grafting units of Phang onto selected cores, using the ability of phosphorus to form covalent bonds with many other elements. Incorporating multiple conical subunits of Phang creates molecules that are awkwardly shaped, unable to pack efficiently, and predisposed to form cocrystals. To demonstrate the potential of this approach, we made salts of the bis(phosphangulene)iminium cation ([(Phang)₂N]⁺), in which the phosphorus atoms of two Phang groups are bonded to a single atom of nitrogen. Analysis of the structures of various salts shows that [(Phang)₂N]⁺ has a unique ability to stabilize unusual anions, including those incorporating fullerenes.

中文翻译：

双（磷腈）亚胺盐。用P子坚持富勒烯

hang烯（“ Phang”）是三苯基膦的类似物，其圆锥形和富电子芳族表面在几何上和电子上与富勒烯的贫电子表面互补。利用磷与许多其他元素形成共价键的能力，可以通过将彭氏单元嫁接到选定的核上，制成具有多个凹面区域的大分子表面。掺入Phang的多个圆锥形亚基会产生笨拙的形状，无法有效堆积的分子，并易于形成共晶体。为了证明这种方法的潜力，我们制备了双（磷腈）亚胺阳离子（[（Phang）₂ N] ⁺），其中两个Phang基团的磷原子与一个氮原子键合。对各种盐结构的分析表明，[（Phang）₂ N] ⁺具有独特的能力来稳定不寻常的阴离子，包括掺入富勒烯的阴离子。

更新日期：2020-01-23

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