Magnetic and spectroscopic properties of a series of linear homo- and heterotrinuclear metal compounds with asymmetric 3,4-disubstituted 1,2,4-triazoles as ligands
作者:Petra J. van Koningsbruggen、Jaap G. Haasnoot、Wim Vreugdenhil、Jan Reedijk、Olivier Kahn
DOI:10.1016/0020-1693(95)04680-1
日期:1995.11
A linear trinuclear structure is proposed for these compounds, in which the metal (II) ions are linked to each other by two pairs of three N1, N2 bridging 1,2,4-triazole ligands. The coordination sphere around the terminal metal (II) ions is completed by water molecules. The two unequal coordination sites present in these compounds allow a route to the synthesis of heterotrinuclear species. Pure samples
描述了一系列具有不对称配体3-甲基-4-乙基-1,2,4-三唑(metz)和3-甲基-4的过渡金属(II)四氟硼酸盐和高氯酸盐化合物的合成,光谱和磁性-苯基-1,2,4-三唑(mptz)。已获得了一系列具有通式[M3L6(H2O6)(阴离子)6(H2O)x(L = metz,阴离子= ClO4-,M = Mn(x = 1.5),Fe(x = 0))的配位化合物,Co(x = 3),Ni(x = 1.5),阴离子= BF4-,M = Mn(x = 6),Co(x = 3),Ni(x = 0); L = mptz,阴离子= ClO4 -,M = Mn(x = 1.5),Fe(x = 0),Co(x = 1.5),Ni,Zn(x = 0),Cd(x = 5),阴离子= BF4-,M = Mn( x = 1.5,Co,Ni,Zn,Cd(x = 0)。对于这些化合物,提出了线性三核结构,其中金属(II)离子通过两对三个N1,N2桥接1