Fair enough, say something like this:
Hi,
Our clan, [Nano], is dead, there are no members left and the only activity going on is about merging the clan with [Element]. so we are asking that you give the moderator powers to Dentian, Ofunknown and Tehnoob. And also renaming the board to Element.
I dunno, we should wait for Dentian and Ofuknown to get back from camping.