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. 2021 Aug 12;7(8):2151–2159. doi: 10.1016/j.chempr.2021.05.002

Figure 1.

Figure 1

Molecular silicon complexes

(A) Selection of previously isolated low-oxidation or low-valent states of silicon.

(B) Reported compounds with planar-tetracoordinated silicon in low-oxidation states (M = W, Mo).

(C) Planarization of normal-valent silicon(IV), the effected changes of the frontier molecular orbital energy, and the representation of HOMO and LUMO in ptSiIV.