Six 1-dimensional complexes with the 4,4'-bipyridine as bridging ligand, [M(TTA)2(m-4,4'-bipy)]n (M = Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II); TTAH = thenoyltrifluoroacetone), were prepared and characterized by elemental anal., IR, 1H NMR and x-ray crystal structural anal. The M(TTA)2 and 4,4'-bipy form 1-dimensional infinite linear structure. The crystals of Mn(II) complex belong to triclinic system, and space group is P1. Its unit cell parameters are: a 0.9549(2), b 0.9600(3), c 1.1556(3) nm; a 65.99(3), b 83.96(4), g 68.89(3)? Z = 1; dc = 1.417 g cm-3, m = 5.3 cm-1; F(000) = 393. Final R = 0.067. The local coordination geometry around Mn(II) is a distorted octahedron. From ESR spectral parameters, the coefficients of MOs and bond parameters are calculated approx. The determination of variable-temp. magnetic susceptibility shows that the magnetic susceptibility of Mn(II) and Cu(II) complexes obeys the Curie law.

Key words: CRYSTAL STRUCTURE DETERMINATION, INFRARED SPECTROPHOTOMETRY, ELEMENTAL ANALYSIS, ZINC COMPLEX, IRON COMPLEX, IRON COMPLEX, COPPER COMPLEX, PROTON MAGNETIC RESONANCE SPECTROMETRY, 2-THENOYL-TRIFLUORO-ACETONE, COBALT COMPLEX