Method of preparing disilanol compound and method of storing disilanol compound

Abstract

Disclosed is a method of storing a fluorine-containing disilanol compound represented by the following formula (3) in the presence of a tertiary amine in such an amount that a molar ratio of the tertiary amine to a silanol group of the fluorine-containing disilanol compound ranges from 0.001 to 20, HO—Z—R1—Rf—R1—Z—OH  (3) wherein Rf is a divalent fluorinated hydrocarbon group or a divalent fluorinated polyether group, R1 may be the same with or different from each other and is a substituted or unsubstituted divalent hydrocarbon group which may have at least one atom selected from the group consisting of oxygen, nitrogen, silicon, and sulfur atoms, and Z is a group represented by the following formula (2) —SiR2R3—  (2) wherein R2 and R3 may be the same with or different from each other and are monovalent organic groups.

Dependencies are inferred from the claim text.