The temperature and frequency dependences of the nuclear spin-lattice relaxation times have been measured for a series of nearly spherical molecules both in the solid and in the liquid state, using a pulse technique. The same anomalous behaviour which was found before in SF6, SeF6 and TeF6 is now shown to occur in MoF6, WF8 , DF8 and solid white phosphorus in a certain temperature range, The results seem to indicate that spin-rotational interactions do operate in a relatively large number of molecular solids and liquids and open the possibility of studying correlation functions for the angular velocity of molecules in the solid by NMR techniques.Sa impulsnim nuklearnim magnetnim rezonantnim spektrometrom izmerene su temperaturne i frekventne zavisnosti longitudinalnih relaksacionih vremena spin-rešetka u nizu gotov sfero simetričih molekula kako u čvrstoj tako i u tečnoj fazi. Na osnovu rezultata može se zaključiti da je spin-rotaciona interakcija dominantan relaksacioni mehanizam u srazmerno velikom broju molekula kako u čvrstom tako i u tečnom stanju, što daje mogućnost izučavanja korelacionih funkcija za uglovnu brzinu molekula metodama NMR-a
