Subject: He2(2+)

From: Vitaly Rassolov <[email-masked]>
Date: Mon, 29 Nov 1999 13:29:51 -0600 (CST)

Dear CCLers:

Does anyone know if the doubly positively charged helium dimer has been
observed experimentally?  The NIST database
(http://webbook.nist.gov) gives the calculated bond
distance and mentions that "He2++ has not yet been found mass-
spectrometrically, nor has its spectrum been observed"; yet the referee to
our paper mentions that it is an observable ion.  

A reference, even vague, would be most appreciated.
_______

Vitaly Rassolov                      [email-masked]
Chemistry Department                 tel. (847) 491-3423
Northwestern University              fax  (847) 491-7713