Zeise's salt

Japanese: ツァイゼ塩 - ツァイゼえん(英語表記)Zeise’s salt
Zeise's salt
Chemical formula: K[PtCl 3 (C 2 H 4 )]・H 2 O. Common name for potassium trichloroplatinate(II). It was first synthesized by W. C. Zeise around 1830. Zeise prepared it by treating platinum chloride(IV) with ethyl alcohol and adding potassium chloride. It can also be obtained by directly adding ethylene to a hydrochloric acid solution of platinum chloride(II). Yellow crystals. Melting point: 170-180°C. The structure of [PtCl 3 (C 2 H 4 )] - has three Cl atoms and a C 2 H 4 center at the vertices of a square planar structure with Pt at the center (see figure), and the C 2 H 4 is coordinated by a double bond with the C-C axis perpendicular to the plane. It was the first complex to coordinate an unsaturated hydrocarbon.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
化学式K[PtCl3(C2H4)]・H2O。トリクロロ白金(II)酸カリウムの俗称。1830年ころツァイゼW.C.Zeiseにより初めてつくられた。ツァイゼは塩化白金(IV)をエチルアルコールで処理し,塩化カリウムを加えてつくった。塩化白金(II)の塩酸溶液に直接エチレンを通じても得られる。黄色結晶。融点170~180℃。[PtCl3(C2H4)]の構造はPtを中心とする平面正方形の頂点に3個のClとC2H4の中心とがあり(図),C2H4はC―C軸を平面に垂直にして二重結合で配位しており,不飽和炭化水素を配位する錯体として得られた最初のものである。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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