分子汞齐[{AuHg₂(o-C₆F₄)₃}{Hg₃(o-C₆F₄)₃}]⁻的合成：异金属同配金属环的罕见实例

Synthesis of the molecular amalgam [{AuHg₂(o-C₆F₄)₃}{Hg₃(o-C₆F₄)₃}]⁻: a rare example of a heterometallic homoleptic metallacycle.

作者信息

Lasanta Tania, López-de-Luzuriaga José M, Monge Miguel, Olmos M Elena, Pascual David

机构信息

Departamento de Química, Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, Complejo Científico-Tecnoloǵico, 26006-Logroño, Spain.

出版信息

Dalton Trans. 2016 Apr 21;45(15):6334-8. doi: 10.1039/c6dt00934d.

DOI:10.1039/c6dt00934d

PMID:26983855

Abstract

The preparation of homoleptic heterometallic complexes still remains a challenge. Herein, we report the synthesis and characterization of [Au(PMe3)2][{AuHg2(o-C6F4)3}{Hg3(o-C6F4)3}] (), a gold-mercury homoleptic metallacycle. The crystal structure of displays two [Hg2M(o-C6F4)3] (M = Au(I), Hg(II)) units linked through a short AuHg contact of 3.097(2) Å, the strongest unsupported Au(I)Hg(II) interaction described to date. Theoretical calculations quantify the interaction between the trimetalic units as -199 kJ mol(-1), a surprisingly strong value.

摘要

纯配体异金属配合物的制备仍然是一个挑战。在此，我们报告了[Au(PMe3)2][{AuHg2(o-C6F4)3}{Hg3(o-C6F4)3}]（）的合成与表征，这是一种金-汞纯配体金属环。其晶体结构显示两个[Hg2M(o-C6F4)3]（M = Au(I)，Hg(II)）单元通过3.097(2) Å的短AuHg接触相连，这是迄今为止报道的最强的无支撑Au(I)Hg(II)相互作用。理论计算将三金属单元之间的相互作用量化为-199 kJ mol(-1)，这是一个惊人的强值。