Synthesis and characterization of a series of nickel(<scp>ii</scp>) alkoxide precursors and their utility for Ni(0) nanoparticle production
作者:LaRico J. Treadwell、Timothy J. Boyle、W. Adam Phelan、Marie V. Parkes、David P. Young
DOI:10.1039/c6dt04083g
日期:——
A series of nickel(II) aryloxide ([Ni(OAr)2(py)x]) precursors was synthesized from an amide-alcohol exchange using [Ni(NR2)2] in the presence of pyridine (py). The H-OAr selected were the mono- and di-ortho-substituted 2-alkyl phenols: alkyl = methyl (H-oMP), iso-propyl (H-oPP), tert-butyl (H-oBP) and 2,6-di-alkyl phenols (alkyl = di-iso-propyl (H-DIP), di-tert-butyl (H-DBP), di-phenyl (H-DPhP)). The
在吡啶(py)存在下,使用[Ni(NR 2)2 ]通过酰胺-醇交换合成了一系列的芳基镍(II)镍([Ni(OAr)2(py)x ])前体。所选择的H-OAR为单和二-邻-取代的2-烷基苯酚:烷基=甲基(H- Ò MP),异丙基(H- Ò PP),叔丁基(H- Ò BP)和2,6-二烷基苯酚(烷基=二异丙基(H-DIP),二叔丁基(H-DBP),二苯基(H-DPhP))。结晶产物溶解为溶剂化单体,结构特征为[Ni(OAr)2(py)x],其中x = 4:OAr = o MP(1),o PP(2);x = 3:OAr = o BP(3),DIP(4);x= 2:OAr = DBP(5),DPhP(6)。通过实验紫外可见光谱确定了激发态(单重态或三重态)和1–6的各种几何形状,并通过计算模型进行了验证。代表性化合物的磁化率4被拟合到产生4.38(3)的磁矩的居里魏斯模型μ乙与镍一致2+中央。选择