Versatile synthesis of chiral 6-oxoverdazyl radical ligands – new building blocks for multifunctional molecule-based magnets
作者:Atena B. Solea、Tobie Wohlhauser、Parisa Abbasi、Yvan Mongbanziama、Aurelien Crochet、Katharina M. Fromm、Ghenadie Novitchi、Cyrille Train、Melanie Pilkington、Olimpia Mamula
DOI:10.1039/c8dt00840j
日期:——
A versatile synthetic methodology to access the first family of chiral verdazyl N,N′-chelate ligands is described and exemplified by N,N′-dimethyl-, N,N′-di-isopropyl- and N,N′-diphenyl oxoverdazyls bearing two isomers of the pinene-pyridine functional group. Their physical properties were probed by X-band EPR spectroscopy, cyclic voltammetry and DFT calculations. Preliminary reactivity studies show
描述和举例说明了一种通用的合成方法,该方法可访问手性Verdazyl N,N'-螯合物的第一族,并以N,N'-二甲基-,N,N'-二异丙基和N,N'-二苯基过氧叠氮基为例pin烯-吡啶官能团的两个异构体。通过X波段EPR光谱,循环伏安法和DFT计算来探究其物理性质。初步的反应性研究表明,它们可以作为N,N'-螯合物配体,与CuCl 2形成手性1:1配合物(3b),其特征在于单晶X射线衍射。对(3b)确认在Cu(II)离子的自旋和verdazyl自由基之间存在反铁磁相互作用。