What characters should be escaped in single quotes?

Question

PowerShell

What characters should be escaped in single quotes in pommershell? Here they write that only ', but why then does it not work?

> ren '’Р’' 1
Rename-Item : Cannot bind argument to parameter 'Path' because it is an empty string.
At line:1 char:4
+ ren  <<<< '’Р’' 1

> echo '’Р’'

Р