With even longer reaction time, more close-packed complex [(Fe(II)3L213(L19)1.5)] ( ) was obtained. Again, it also crystallized in monoclinic space group of C2/c, similar to that of 27. Here, asymmetric unit contained three autonomic [Fe(II)21] units and one and a half of L19. Magnetic measurement was performed for 28 from 2 K to 350 K in 1000 Oe dc magnetic field. Although, at 350 K, the T for 28 was obtained 2.16 cm 3 K mol -1 which is quite lesser than the anticipated value for three independent HS Fe(II) centers suggesting that significant amount of LS Fe(II) centers are also present in 28 .