  Kawamura et. al. recently published an article about the synthesis of rhenium
nitride with MoS2-type structure [APL 100, 251910(2012)]. We disagree with the
composition proposed by Kawamura. The compound synthesized by Kawamura is ReN3,
or a compound of similar composition. What Kawamura did is to find the Re
atomic positions of a compound where the nitrogen concentration remains
unknown. This paper was rejected form APL. The reviewer comments (and our
reply) are included here.
