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Two new cluster compounds having chiral incomplete-cubane-type MnIII3O4 cores were synthesized using (2S)-2-hydroxy-4-(salicylideneamino)butyrate (H2L−) and characterized by X-ray analysis as well ...

Three copper(II)–gadolinium(III) complexes M[Gd(CuL)4] with M+ = Na+, K+, and Cs+ have been synthesized, where H3L denotes N-(4-methyl-6-oxo-3-azahept-4-enyl)oxamic acid. The anionic part [Gd(CuL)4...

A mononuclear copper(II) complex, [2-ethoxy-6-{[3-(2-methyl-4-imidazolylmethyleneamino)propyl]iminomethyl}phenolato]copper(II) perchlorate [CuHL]ClO4 and its deprotonated complex at the imidazole m...

Heterotrinuclear [(NiIIL)2LnIII(NO3)] complexes (where H3L = 1,1,1-tris[(salicylideneamino)methyl]ethane and Ln = Gd (1), Eu (2), Tb (3), and Dy (4)) were prepared by treating [Ni(H1.5L)]Cl0.5 with...

Three tetranuclear copper(II)–lanthanide(III) complexes, [{CuIILLnIII(o-van)(CH3COO)(MeOH)}2]·2H2O (LnIII = GdIII, TbIII, and DyIII), were synthesized and characterized, where H3L is 1-(2-hydroxybe...

Protonated and deprotonated forms of nickel(II) complex with N-salicylidene-N′-(2-phenylimidazol-4-ylmethylidene)-1,3-propanediamine, 1 and 1′, were synthesized and characterized. The X-ray crystal structures of 1·H2O and 1′ were determined: 1·H2O, P21/n (No. 14), a = 11.642(2), b = 12.908(3), c = 15.264(2) A, β = 96.642(1)°; 1′, I41/a (No. 88), a = 22.651(3), c = 13.950(7) A. The crystal of 1·H2O assumes a dinuclear structure bridged by the di-μ-phenoxo moiety in an out-of-plane fashion with Ni–Ni = 3.173(1) A and Ni–O = 2.126(3) A of the Ni2O2 core and two perchlorate ions as counter anions, in which the nickel(II) ion assumes an octahedral coordination geometry with N3O3 donor atoms consisting of four donor atoms of a quadridentate ligand, a bridging phenoxo-oxygen atom, and an oxygen atom of methanol. A ferromagnetic interaction with J = +7.1 cm−1 operates between the two high-spin nickel(II) ions. 1 undergoes a deprotonation of the imidazole proton under basic conditions to give the deprotonated comp...

A chiral one-dimensional copper(II)-gadolinium(III) complex [Cu II L dpen ( 1S2S )Gd III (thd) 2 ] n (H 3 L dpen(1S2S) = (1S,2S)-1,2-diphenyl-1-(2-hydroxybenzamido)-2-(2-hydroxy-3-methoxybenzylideneamino)ethane, Hthd = 2,2,6,6-tetramethyl-3,5-heptanedione) was synthesized, where Cu II and Gad III ions are alternately arrayed to form a ferromagnetic chain.

A 3d–4f complex with the formula of {Na[(CuL)4Gd]}1∞ was prepared, where (CuL)− is a “ligand-complex,” [N-(4-methyl-6-oxo-3-azahept-4-enyl)oxamato]copper(II). The structure consists of a pin-wheel-...

Two heterometal assemblies, [CuIIL2MnII(hfac)] (2) and [CuIIL3MnII(hfac)] (3), have been synthesized by the assembly reaction of “bridging ligand-complex” Na[CuIILn] (n = 2, 3) and [MnII(hfac)2(H2O)2], where H3L2 = 1-(2-hydroxy-3-methoxybenzamido)-2-(2-hydroxybenzylideneamino)ethane, H3L3 = 1-(2-hydroxy-3-methoxybenzamido)-2-(2-hydroxy-3-methoxybenzylideneamino)ethane, and Hhfac = hexafluoroacetylacetone. The temperature-dependent magnetic susceptibility and field-dependent magnetization data demonstrated that 3 was well-reproduced by a cyclic tetranuclear structure, while those of 2 indicated an infinite linear chain structure.