Enantiopure and racemic radical-cation salts of B(malate)2- anions with BEDT-TTF
Enantiopure and racemic radical-cation salts of B(malate)2- anions with BEDT-TTF
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DOI：
10.1039/c6dt01038e
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发表时间：
2016-01-01
影响因子：
4
通讯作者：
Wilson, Claire
中科院分区：
文献类型：
--
作者：
Lopez, Jordan R.;Martin, Lee;Wilson, Claire
我们合成了 BEDT-TTF 与手性硼酸根阴离子的自由基阳离子盐的第一个例子，[B(苹果酸)(2)](-)，由对映体纯或外消旋二齿苹果酸配体制备。在前一种情况下，仅掺入硼酸根阴离子的两种非对映异构体中的一种，而对于水合外消旋盐，掺入一对含有R和S苹果酸配体的外消旋硼酸根阴离子对。报告了它们的导电和磁性特性。紧束缚带计算表明手性盐具有有效的半填充平带，这可能是由手性结构特征引起的。
We have synthesized the first examples of radical-cation salts of BEDT-TTF with chiral borate anions, [B(malate)(2)](-), prepared from either enantiopure or racemic bidentate malate ligands. In the former case only one of two diastereoisomers of the borate anion is incorporated, while for the hydrated racemic salt one racemic pair of borate anions containing a R and a S malate ligand is incorporated. Their conducting and magnetic properties are reported. The tight-binding band calculation indicates that the chiral salt has an effective half-filled flat band, which is likely to be caused by the chiral structural feature.