Fluorinated ether compound, fluorinated ether composition, coating liquid and article

A fluorinated ether compound represented by formula (2):

• [X23-n2R23n2Si—R22—]3C—R21—[N(R2)C(O)]p2—(Rf2O)m2-Q2-[C(O)N(R2)]p2—R21—C[—R22—SiR23n2X23-n2]3 (2)
• wherein Rf2 is a fluoroalkylene group having no branched structure,
• m2 is an integer of from 2 to 210,
• (Rf2O)m2 is one composed of the same type or at least two types of Rf2O different in number of carbon atoms,
• Q2 is a fluoroalkylene group having no branched structure,
• R2 is a hydrogen atom or an alkyl group,
• p2 is 0 or 1, and two p2 are the same or different,
• R21 is a single bond, an alkylene group, an alkylene group comprising an etheric oxygen atom at its terminal on the side bonded to [X23-n2R23n2Si—R22—]3C, an alkylene group with at least two carbon atoms comprising an etheric oxygen atom between its carbon-carbon atoms, or an alkylene group with at least two carbon atoms comprising an etheric oxygen atom between its carbon-carbon atoms and at its terminal on the side bonded to [X23-n2R23n2Si—R22—]3C,
• two R21 are the same group or different groups,
• R22 is an alkylene group or an alkylene group with at least two carbon atoms comprising an etheric oxygen atom between its carbon-carbon atoms,
• R23 is a hydrogen atom or a monovalent hydrocarbon group,
• X2 is a hydrolyzable group,
• n2 is an integer of from 0 to 2, and
• six [—R22—SiR23n2X23-n2] are the same group or different groups.