/w whispering to a player after a 2v2 for example

how do u whisper to a player name like:
< hereeeee > toto

/w < hereeeee > toto
/w ‘< hereeeee > toto’
/w “< hereeeee > toto”
or
/w toto
does not work.
ty for helping
without space between < and the first letter