Gold(I) {2}‐Metallacoronates derived from a Catechol‐scaffolding Aroylbis(N,N‐diethylthiourea): Syntheses and Structures

Chien Thang Pham, Hung Huy Nguyen, Ulrich Abram, Thu Thuy Pham
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Abstract

One‐pot reactions of a catechol‐scaffolding aroylbis(N,N‐diethylthiourea) H2Lcat and mixtures of lanthanide nitrates Ln(NO3)3 (Ln3+ = La3+, Nd3+ or Yb3+) or indium(III) chloride InCl3 and [Au(tht)Cl] in methanol in the presence of the supporting base Et3N result in gold(I) {2}‐metallacoronates. Depending on radii of the trivalent metal ions, the corresponding complexes are separated either in the neutral form with the composition {(NO3‐κ2‐O,O’)Ln [[EQUATION]] [Au2(Lcat)2]} in the cases of La3+ and Nd3+ or as the ‘ion‐pair’ {Yb [[EQUATION]] [Au2(Lcat)2]}+(NO3)‐ for the Yb(III) compound. The cationic complexes can be isolated in higher yields as the PF6‐ salts {M [[EQUATION]] [Au2(Lcat)2]}+(PF6)‐ (M3+ = Yb3+ or In3+) by treatment of reaction mixtures with (n‐Bu4N)(PF6).
源自邻苯二酚支架双(N,N-二乙基硫脲)的金(I) {2}-金属硼酸盐:合成与结构
在支持碱 Et3N 的存在下,儿茶酚-支架酰基双(N,N-二乙基硫脲)H2Lcat 与镧系元素硝酸盐 Ln(NO3)3 (Ln3+ = La3+、Nd3+ 或 Yb3+)或氯化铟(III)InCl3 和[Au(tht)Cl]的混合物在甲醇中发生单锅反应,生成金(I){2}-金属硼酸盐。根据三价金属离子的半径,相应的配合物以中性形式分离,其组成为{(NO3-κ2-O,O')Ln[[公式]]。[Au2(Lcat)2]}(La3+ 和 Nd3+),或者以 "离子对"{Yb [[EQUATION]] 的形式分离。[Au2(Lcat)2]}+(NO3)-来表示镱(III)化合物。阳离子配合物可以作为 PF6- 盐{M [[EQUATION]] 分离出来,产量更高。[Au2(Lcat)2]}+(PF6)-(M3+ = Yb3+ 或 In3+)。
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