Effect of ligand substitution on the SMM properties of three isostructural families of double-cubane Mn<sub>4</sub>Ln<sub>2</sub> coordination clusters
作者:Muhammad Nadeem Akhtar、Yanhua Lan、Murad A. AlDamen、Yan-Zhen Zheng、Christopher E. Anson、Annie K. Powell
DOI:10.1039/c7dt04304j
日期:——
Three isostructural lanthanide series with a core of MnIII2MnII2Ln2 are reported. These three families have the formulae of [MnIII2MnII2Ln2(μ4-O)2(H2edte)2(piv)6(NO3)2] no crystallization solvent, Ln = La, Ce, Pr, Nd, Eu (1–4, 6); solv = 3MeCN, Ln = Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Y (5, 7–13)}, where H2edte = N,N,N′,N‘-tetrakis(2-hydroxyethyl)ethylenediamine and piv = pivalate; [MnIII2MnII2Ln2(μ4
报道了三个具有锰III 2锰II 2 Ln 2核心的同构镧系元素。这三个家族具有[Mn的式III 2锰II 2 LN 2(μ 4 -O)2(H 2 edte)2(PIV)6(NO 3)2 ] 无结晶化溶剂,Ln为镧,铈,镨,钕,铕(1-4,6); SOLV = 3MeCN,Ln为钐,钆,铽,镝,钬,铒,铥,镱,Y(5,7-13)},其中H 2 edte = Ñ,N,N ′,N′-四(2-羟乙基)乙二胺,piv =新戊酸酯;[锰III 2锰II 2 LN 2(μ 4 -O)2(H 2 edte)2(苯并)6(NO 3)2 ],其中苯并=苯甲酸盐,或[锰III 2锰II 2 LN 2(μ 4 -O)2(edteH 2)2(苯)6(NO 3)2]·2MeCN Ln = Gd,Tb,Dy(14-16); 和[锰III 2锰II 2 LN 2(μ 4 -O)2(edteH 2)2(PIV)8 ]