Stannylenes (R2Sn:) are a class of organotin(II) compounds that are analogues of carbene. Unlike carbene, which usually has a triplet ground state, stannylenes have a singlet ground state since valence orbitals of tin (Sn) have less tendency to form hybrid orbitals and thus the electrons in 5s orbital are still paired up.[1] Free stannylenes are stabilized by steric protection. Adducts with Lewis bases are also known.[2]
^Sasamori, T.; Tokitoh, N. (2005). Encyclopedia of Inorganic Chemistry II. Chichester, U.K.: John Wiley & Sons. pp. 1698–1740.
Stannylenes (R2Sn:) are a class of organotin(II) compounds that are analogues of carbene. Unlike carbene, which usually has a triplet ground state, stannylenes...
attributed to the "inert pair effect". Organotin(II) compounds include both stannylenes (formula: R2Sn, as seen for singlet carbenes) and distannylenes (R4Sn2)...
regiospecific benzylation and allylation of polyhydroxy-compounds via their stannylene derivatives in non-polar solvents", in: J. Chem. Soc., Perkin Trans. 1...
"Synthesis and Structure of Stable Tri-tert-butylgermyl-Substituted Stannylene and Germylene". Organometallics. 20 (22): 4460–4462. doi:10.1021/om010591h...
decreasing dimerization energy down Group 14, while monohalogenated stannylenes and plumbylenes dimerize via the halogen-bridging mode, monohalogenated...
are silylenes, R2Si:, germylenes R2Ge: (example diphosphagermylene), stannylenes R2Sn: and plumbylenes R2Pb:, collectively known as metallylenes and regarded...
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