Methods were developed for the controlled thermal synthesis of high-spin cubane-like pivalates MII 4(μ3−OR)4} (M = Co or Ni; R = H or Me) starting from mono-and polynuclear complexes. The solid-state thermal decomposition of the known pivalate clusters [MII 4(μ3−OMe)4−(μ2−OOCBut)2(η2−OOCBut)2(MeOH)4] and the new clusters [M 4 II (μ3)−OH4(η1−OOCBut)3−(μ−(NH2)2C6H2Me2)3(η1−(NH2)2C6H2Me2)3]+(OOCBut)− (M = Co or Ni) was studied by differential scanning calorimetry and thermogravimetry. The thermolysis of cubane-like CoII and NiII pivalates is a destructive process. The phase composition of the decomposition products is determined by the nature of coordinated ligands and the structural features of the metal core.
开发了一种控制热合成高自旋
立方烷样派伐酸盐 MII 4(μ3−OR)4}(M = Co 或 Ni;R = H 或 Me)的方法,起始于单核和多核复合物。通过差示扫描量热法和热重分析研究了已知派伐酸盐簇 [MII 4(μ3−OMe)4−(μ2−OOCBut)2(η2−OOCBut)2(MeOH)4] 和新簇 [M 4 II (μ3)−OH4(η1−OOCBut)3−(μ−(NH2)2C6H2Me2)3(η1−(NH2)2C6H2Me2)3]+(OOCBut)−(M = Co 或 Ni)的固态热分解过程。
立方烷样的 CoII 和 NiII 派伐酸盐的热解是一个破坏性过程。分解产物的相组成由配位
配体的性质和
金属核心的结构特征决定。