The Neel temperature T(N), the magnetic structural transition temperat
ure T(A) and the effective number of Bohr magnetons P(eff) (mu(B)/Cr)
decrease with increasing y in Cr3-yRhySe4. CrRh2Se4 shows a spin glass
like state. These features are compared with the magnetic phase diagr
ams and P(eff) of Cr3-xRhxS4 and Cr3-zRhzTe4.