Silanoate

Siloxides are chemical compounds with the formula R₃SiOM, where R is usually an organic group and M is usually a metal cation. Also called silanoates, they are derived by deprotonation of silanols. They also arise by the degradation of siloxanes by base:

Cleavage of cyclic siloxanes affords siloxides:

These anions function as ligands for metal ions, forming complexes similar to metal alkoxides. Triphenylsiloxide is a common derivative useful for generating metal complexes. A very bulky siloxide is tert-butyl₃SiO⁻, sometimes called silox.

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