The molecular structures and magnetic properties of μ3-tetranuclear β-diketonate copper complexes [Cu(bzac)(μ3-OC2H4OCH3)]4 and [Cu(μ-dbm)(μ3-OC2H4OCH3)]4
摘要:
[Cu(bzac)(OC2H4OCH3)]4dagger (I) and [Cu(dbm)(OC2H4OCH3]4dagger (II) have been shown to be tetrameric in the solid state. Compound I has a pseudo-cubane type structure with mu3-alkoxide oxygens occupying four bridging positions. Two methoxy oxygens are also within bonding distance of copper(II) ions. Compound II has a stepped configuration with a chelate ring and alkoxide oxygens as bridging centres. None of the methoxy oxygens is clearly chelating. Magnetic susceptibility data versus temperature data to 4 K for the complexes show antiferromagnetic coupling which can be treated by ''pairs of equal dimers'' procedures. The complexes decompose in stages at temperatures below 350-degrees-C at atmospheric pressure to give CuO.
Reactions of 2,5-pyrrolediylbis[N-(o-hydroxyphenylaldimine)] with some metal ions
作者:H.A. Tayim、A.S. Salameh、U.S.I. Meri
DOI:10.1016/s0277-5387(00)84548-9
日期:1986.1
The novel Schiff-base 2,5-pyrrolediylbis[N-(o-hydroxyphenylaldimine)] (SBH2) has been synthesized by the condensation of 2,5-pyrroledicarboxaldehyde and o-amino-phenol. The reactions of the Schiff-base with several transition- and post-transition-metal ions have been investigated. The Schiff-base reacts as a tetradentate dianion without deprotonation of the pyrrole. The complexes M(SB)·nH2O have been
通过2,5-吡咯二甲醛和邻氨基苯酚的缩合反应合成了新型的席夫碱2,5-吡咯二基双[ N-(邻羟基苯二胺)](SBH 2)。研究了席夫碱与几种过渡金属和过渡金属离子的反应。席夫碱以四齿二价阴离子形式反应,而吡咯没有去质子化。已分离出配合物M(SB)· n H 2 O,并用n= 1、2或3表征。SB是席夫碱的阴离子。M =二价Mn,Co,Ni,Cu,Zn,Pd,Cd,Pb或UO 2。M = Cu,X = NO 3的双核络合物M(SB)MX 2,并且M = Ni或Pd,X = Cl,也已被隔离。
Yampol'skaya, M. A.; Matuzenko, G. S.; Ablov, A. V., Russian Journal of Inorganic Chemistry, 1979, vol. 24, p. 463 - 464
作者:Yampol'skaya, M. A.、Matuzenko, G. S.、Ablov, A. V.
DOI:——
日期:——
Reactions of 2,5-pyrroledicarboxaldehyde with some metal ions
作者:H.A. Tayim、A.S. Salameh
DOI:10.1016/s0277-5387(00)84420-4
日期:1986.1
Reactions of 2-pyrrole-[N-(o-hydroxyphenyl)aldimine] with metal ions
作者:H.A. Tayim、A.S. Salameh
DOI:10.1016/s0277-5387(00)84421-6
日期:1986.1
A novel method for the synthesis of Cu(II) complexes of Mixed-aldehyde mad β-diketone systems