School of Chemistry, Monash University, Clayton, VIC, Australia.
Dalton Trans. 2012 Apr 7;41(13):3751-7. doi: 10.1039/c2dt11905f. Epub 2012 Feb 17.
The nucleophilic addition of methanol and water to the dicyanonitrosomethanide anion, resulting in the formation of cyano(imino(methoxy)methyl)nitrosomethanide (cmnm) and carbamoylcyanonitrosomethanide (ccnm), respectively, is used as a means of in situ ligand synthesis during the formation of [Dy(8)(OH)(6)(OMe)(6)(cmnm)(10)(ccnm)(2)(H(2)O)(2)(MeOH)(2)] (1). This is the first time these reactions have been observed to be promoted by the presence of a lanthanoid ion. The core of the octanuclear cluster consists of two cubane moieties ([Dy(4)(OH)(3)(OMe)]), bridged by four methoxide ligands to form a central [Dy(8)(OH)(6)(OMe)(6)] moiety. The complex displays magnetic properties that are indicative of probable single molecule magnet features.
甲醇和水的亲核加成分别生成氰基(亚氨基(甲氧基)甲基)亚硝酰甲烷(cmnm)和氨甲酰氰基亚硝酰甲烷(ccnm)，这是在[Dy(8)(OH)(6)(OMe)(6)(cmnm)(10)(ccnm)(2)(H(2)O)(2)(MeOH)(2)]（1）形成过程中作为原位配体合成的一种手段。这是首次观察到镧系离子存在促进这些反应。八核簇的核心由两个立方烷部分([Dy(4)(OH)(3)(OMe)])组成，由四个甲氧基配体桥接，形成一个中心[Dy(8)(OH)(6)(OMe)(6)]部分。该配合物表现出的磁性特征表明其可能具有单分子磁体特征。
