01860nas a2200145   4500008004100000245012600041210006900167260000800236300001400244490000700258520127900265100001901544700002401563856012701587       2018                        eng d00aSilicon-fluorine chemistry: from the preparation of SiF2 to C-F bond activation using silylenes and its heavier congeners0 aSiliconfluorine chemistry from the preparation of SiF2 to CF bon  cMAY  a5046-50570 v543 aThis feature article is intended to provide a background to the history of the isolation of silicon(II) fluorides and the different synthetic methodologies used to generate them. Although first detected in the 1970s, the chemistry of silicon(II) fluorides has not encountered serious research efforts for a rather long period of time. This is somewhat surprising given the fact that the chemistry of compounds with divalent silicon has undergone a renaissance during last three decades. Recently, the interest in silicon(II) fluorides have been resparked with tremendous progress being achieved in this area, in particular, with respect to their synthesis and structural characterisation. The successful isolation of cyclic alkyl amino carbene (cAAC) stabilized silicon difluoride has completed the classic progression of SiF2, from a transient intermediate to spectroscopically detected molecule to a stable compound. The related germanium(II), tin(II), and lead(II) fluoride chemistry will also be discussed. Apart from the isolation of tetrel(II) fluorides, the use of compounds with low valent group 14 elements for the selective activation and functionalisation of C-F bonds has witnessed some remarkable advances, which will also be summarized in this feature article.1 aSen, Sakya, S.1 aRoesky, Herbert, W.  uhttps://library.ncl.res.in/content/silicon-fluorine-chemistry-preparation-sif2-c-f-bond-activation-using-silylenes-and-its