Linear Trinuclear Mixed-Metal CoII−GdIII−CoII Single-Molecule Magnet: [L2Co2Gd][NO3]·2CHCl3 (LH3 = (S)P[N(Me)NCH−C6H3-2-OH-3-OMe]3)
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چکیده
منابع مشابه
An S = 2 cyanide-bridged trinuclear Fe(III)2Ni(II) single-molecule magnet.
Treatment of [NEt4][(pzTp)Fe(III)(CN)3] (1) with Ni(II)(OTf)2 (OTf = trifluoromethanesulfonate) and 1,5,8,12-tetraazadodecane (L) affords {[(pzTp)Fe(III)(CN)3]2[Ni(II)L]} x 1/2MeOH (2), while 2,2'-bipyridine (bipy) affords {[(pzTp)Fe(III)(CN)3]2[Ni(II)(bipy)2]} x 2 H2O (3). Magnetic measurements indicate that 2 and 3 have S = 2 ground states and that 3 exhibits slow relaxation of the magnetizat...
متن کاملStudies of a linear single-molecule magnet.
Reaction of the dinuclear complex [Mn2O2(bpy)4](ClO4)3 with H3cht (cis,cis-l,3,5-cyclohexanetriol) in MeCN produces the complex [Mn3(Hcht)2(bpy)4](ClO4)3.Et2O.2MeCN (1.Et2O.2MeCN). Dc magnetic susceptibility measurements reveal the existence of weak ferromagnetic exchange between the three Mn ions, leading to a spin ground state of S = 7, with D = -0.23 cm(-1). W-Band (94 GHz) EPR measurements ...
متن کاملStructural switching from paramagnetic to single-molecule magnet behaviour of LnZn2 trinuclear complexes.
Five LnZn2 trinuclear complexes, [Ln(NO3){Zn(L)(SCN)}2] (H2L is a Schiff base ligand derived from o-vanillin and ethylenediamine; Ln = Tb 1, Dy 2, La 3, Tb0.14La0.864, and Dy0.21La0.795), were synthesised in which the Zn(II)-Ln(III)-Zn(II) array exhibits two slightly different arrangements: 1 and 2 exhibited slightly bent arrangements, whereas 3-5 exhibited more linear arrangements. These diffe...
متن کاملA mononuclear Fe(III) single molecule magnet with a 3/2↔5/2 spin crossover.
The air stable complex [(PNP)FeCl(2)] (1) (PNP = N[2-P(CHMe(2))(2)-4-methylphenyl](2)(-)), prepared from one-electron oxidation of [(PNP)FeCl] with ClCPh(3), displays an unexpected S = 3/2 to S = 5/2 transition above 80 K as inferred by the dc SQUID magnetic susceptibility measurement. The ac SQUID magnetization data, at zero field and between frequencies 10 and 1042 Hz, clearly reveal complex ...
متن کاملAchiral single molecule magnet and chiral single chain magnet.
An achiral molecular square and a chiral chain composed of cyanide bridged Fe(III) and Ni(II) ions were prepared, and they act as a single molecule magnet and a chiral single chain magnet, respectively.
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ژورنال
عنوان ژورنال: Inorganic Chemistry
سال: 2007
ISSN: 0020-1669,1520-510X
DOI: 10.1021/ic070321c