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首页> 外文期刊>New Journal of Chemistry >Influence of ligand environment on the structure and properties of silver(I) dithiocarbamate cluster-based coordination polymers and dimers
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Influence of ligand environment on the structure and properties of silver(I) dithiocarbamate cluster-based coordination polymers and dimers

机译:配体环境对二硫代氨基甲酸银(I)团簇配位聚合物和二聚体结构和性能的影响

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摘要

Luminescent silver(I) homo- and heteroleptic pyridyl functionalised dithiocarbamate (dtc) complexes of the form, [{Ag(L){4]_∞ (L = N-benzyl-N-methylpyridyldtc (L1) 1, bis-(N-methylpyridyl)dtc (L2) 2) and [Ag(L)PPh3]2 (L = LI (3), L2 (4)) have been synthesized and characterized by elemental analysis, TGA, spectroscopy (IR, ~1H, ~(13)C and ~(31)P NMR and UV-Vis) and X-ray crystallography. Complexes 1 and 2 are isomorphous and have a tetranuclear cluster-based coordination polymeric structure. In these tetranuclear silver(i) cluster subunits the four Ag atoms form a distorted tetrahedron. Complexes 3 and 4 are also isostructural and have centrosymmetric structures in which each Ag atom forms a distorted tetrahedral coordination geometry. All complexes are weakly conducting and exhibit semiconductor behaviour. 1-4 are strongly luminescent in solid phase; a correlation between their structure and luminescent properties has been established. .
机译:发光形式为[{Ag(L){4]_∞(L = N-苄基-N-甲基吡啶基dtc(L1)1,bis-(N)的均银和杂配吡啶基官能化的二硫代氨基甲酸酯(dtc)络合物-甲基吡啶基)dtc(L2)2)和[Ag(L)PPh3] 2(L = LI(3),L2(4))已合成并通过元素分析,TGA,光谱法(IR,〜1H,〜 (13)C和〜(31)P NMR和UV-Vis)和X射线晶体学。配合物1和2是同构的,并具有基于四核簇的配位聚合物结构。在这些四核银(i)簇亚基中,四个Ag原子形成扭曲的四面体。配合物3和4也是同构的并且具有向心对称的结构,其中每个Ag原子形成扭曲的四面体配位几何形状。所有络合物的导电性均较弱,并表现出半导体行为。 1-4在固相中强烈发光;已经确定了它们的结构与发光特性之间的相关性。 。

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