Short description of important scientific result: N. Domracheva, A.Pyataev, R. Manapov, M. Gruzdev, U.Chervonova and A. Kolker For the first time, we have obtained a new compound with labile low-spin electron configuration switchable between (dxz,dyz)4(dxy)1/(dxy)2(dxz,dyz)3 ground states and driven by temperature.