Surface-treating agent and article comprising layer formed from surface-treating agent

An article comprising a base material and a layer formed from a compound represented by the following formula (1) or from a surface-treating agent comprising the compound:

• wherein
• X1 to X5 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group, a nitro group, a hydroxy group, or an Rf group, provided that at least one of X1 to X5 is the Rf group;
• the Rf group represents R15—R16—;
• R15 represents a fluorine-containing hydrocarbon group optionally having an ether bond;
• R16 represents a single bond or a divalent organic group;
• R1 each independently in each occurrence represents a hydroxy group, a hydrolyzable group, or a halogen atom;
• R2 each independently in each occurrence represents a hydrogen atom, an alkyl group, or an aryl group;
• and
• n is an integer of 1 to 3.

A surface-treating agent comprising:

• (A) a compound represented by the following formula (1):
• wherein
• X1 to X5 each independently represent a hydrogen atom, a halogen atom, a hydrocarbon group, a nitro group, a hydroxy group, or an Rf group, provided that at least one of X1 to X5 is the Rf group;
• the Rf group represents R15—R16—;
• R15 represents a fluorine-containing hydrocarbon group optionally having an ether bond;
• R16 represents a single bond or a divalent organic group;
• R1 each independently in each occurrence represents a hydroxy group, a hydrolyzable group, or a halogen atom;
• R2 each independently in each occurrence represents a hydrogen atom, an alkyl group, or an aryl group;
• and
• n is an integer of 1 to 3;
• and
• (B) one or more additional components selected from a silicon-containing compound, a fluorine-containing oil, a silicone oil, and a solvent.