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首页> 外文期刊>The Open Crystallography Journal >Influence of Water Molecules on Properties of Binuclear or Bridged Structures for Chiral CuII-NiII, CuII-PdII, and CuII-PtII Tetracyano- Bimetallic Assemblies
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Influence of Water Molecules on Properties of Binuclear or Bridged Structures for Chiral CuII-NiII, CuII-PdII, and CuII-PtII Tetracyano- Bimetallic Assemblies

机译：水分子对手性CuII-NiII，CuII-PdII和CuII-PtII四聚体-双金属组件双核或桥接结构性质的影响

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We have prepared new chiral bimetallic assemblies of discrete binuclear [CuL2][Ni(CN)4]·2H2O or onedimensionalcyanide-bridged [CuL2][Pd(CN)4] (and [CuL2][Pt(CN)4]) (L = (1S,2S)-(+)-N,N'-dimethyl-cyclohexane-1,2-diamine). The numbers of co-crystallized water molecules contained are different from each other and their compositionsare easy to vary due to co-crystallized water molecules. As far as we studied on the related [Cu(diamine)2]a [M(CN)b]c·dH2O compounds, actually such a feature has been found for the first time. According to crystal structures, the elongated axial bond distances of [CuL2]2+ moieties are Cu-N = 2.195(7) ? for [CuL2][Ni(CN)4]·2H2O, Cu-N = 2.443(4)and 2.519(2) ? for [CuL2][Pd(CN)4]. Single crystal structure analyses, variable low temperature XRD, measurements of electronic, CD, emission, and XPS spectra and magnetic properties have been carried out. We compared their structural preference between NiII and PdII (or PtII) metal ions. Novel emission band of [CuL2][Pt(CN)4] appeared at 410 nm (λex = 360 nm) in the solid state regardless of quenching by cyanide-bridged CuL2]2+ moieties.
机译：我们已经制备了离散的双核[CuL2] [Ni（CN）4]·2H2O或一维氰化桥[CuL2] [Pd（CN）4]（和[CuL2] [Pt（CN）4]）的新手性双金属组装体（ L ＝（1S，2S）-（+）-N，N′-二甲基-环己烷-1，2-二胺）。所包含的共结晶水分子的数目彼此不同，并且它们的组成由于共结晶水分子而易于改变。据我们对相关的[Cu（二胺）2] a [M（CN）b] c·dH2O化合物的研究，实际上是首次发现这种特征。根据晶体结构，[CuL 2] 2+部分的延长的轴向键合距离为：Cu-N = 2.195（7）？对于[CuL 2] [Ni（CN）4]·2H 2 O，Cu-N ＝ 2.443（4）和2.519（2）？对于[CuL2] [Pd（CN）4]。已经进行了单晶结构分析，可变低温XRD，电子，CD，发射和XPS光谱以及磁性能的测量。我们比较了它们在NiII和PdII（或PtII）金属离子之间的结构偏好。 [CuL2] [Pt（CN）4]的新型发射带在固态下出现在410 nm（λex= 360 nm）处，而不受氰化物桥联的CuL2] 2+部分的猝灭。

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