Department of Chemistry and Biochemistry, University of Lethbridge, 4401 University Drive, Lethbridge, Alberta T1K 3M4, Canada.
Chem Commun (Camb). 2012 Sep 21;48(73):9120-2. doi: 10.1039/c2cc34578a. Epub 2012 Aug 6.
Sulfur tetrafluoride and triethylamine react at low temperatures to form a 1:1 adduct. The unambiguous characterization of the SF(4)·N(C(2)H(5))(3), which is only stable at low temperature, proves the Lewis acid property of SF(4) towards organic Lewis bases. The S-N bond has a length of 2.384(2) Å and is an archetypical example of a dative S(IV) ← N bonding modality.
四氟化硫和三乙胺在低温下反应,形成 1:1 的加合物。SF(4)·N(C(2)H(5))(3) 的明确特征仅在低温下稳定,证明了 SF(4) 对有机路易斯碱的路易斯酸性质。S-N 键长为 2.384(2) Å,是典型的 dative S(IV) ← N 键合模式。