High‐fidelity Recognition of Organotrifluoroborate Anions (R−BF 3 − ) as Designer Guest Molecules
High‐fidelity Recognition of Organotrifluoroborate Anions (R−BF 3 − ) as Designer Guest Molecules
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高保真度识别有机三氟硼酸根阴离子 (R–BF 3–) 作为设计客体分子
DOI：
10.1002/chem.202201584
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发表时间：
2022
期刊：
影响因子：
--
通讯作者：
Flood, Amar H.
中科院分区：
文献类型：
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作者：
Sheetz, Edward G.;Zhang, Zhao;Marogil, Alyssa;Che, Minwei;Pink, Maren;Carta, Veronica;Raghavachari, Krishnan;Flood, Amar H.
硼化合物被识别为硼酸，但未被识别为有机三氟硼酸阴离子（R - BF3 -）。我们正在探索这些和其他设计阴离子作为阴离子识别基序的发展，将它们视为母体无机离子的替代版本。为此，我们证明了有机三氟硼酸盐（R - BF3 -）与蓝星大环的强而可靠的结合，蓝星大环与无机BF4 -祖细胞大小互补。我们发现识别是由取代基的立体结构调节的，并且使用R - BF3 -阴离子的普通K+盐保留亲和。
The recognition of boron compounds is well developed as boronic acids but untapped as organotrifluoroborate anions (R−BF3−). We are exploring the development of these and other designer anions as anion‐recognition motifs by considering them as substituted versions of the parent inorganic ion. To this end, we demonstrate strong and reliable binding of organic trifluoroborates, R−BF3−, by cyanostar macrocycles that are size‐complementary to the inorganic BF4−progenitors. We find that recognition is modulated by the substituent's sterics and that the affinities are retained using the common K+salts of R−BF3−anions.