Multiplicity and Oxidation State - Two Surprising Aspects of Unusual Chemical Bonds

时间：2023年6月14日（星期三）下午15:00

地点：笃学楼302会议室

报告人：Professor Gernot Frenking

报告人简介：

Gernot Frenking 教授，国际著名理论化学家、世界理论和计算化学家协会秘书长、化学键分析领域领军人物、Journal of Computational Chemistry 主编、德国马尔堡菲利普大学（Philipps-Universität Marburg, Germany）C4教授，2008～2014年任马尔堡菲利普大学化学系院长。2015年在西班牙University Donostia (San Sebastian)做兼职教授。2017年起任新利18彩票 化学与分子工程学院兼职教授。

其研究涵盖了化学键理论、理论无机化学、具有特殊化学键的分子结构、过渡金属络合物和主族元素化合物等领域。目前，在国际知名期刊上共计发表论文800余篇；其中，一区文章200多篇，包括Nature 3 篇，Science 9 篇，Chem. Rev. 4 篇， Chem. Soc. Rev. 3 篇，Nat. Chem.3 篇，J. Am. Chem. Soc.90多篇，Angew. Chem. Int. Ed. 100多篇等，H 因子为83。另外，在Wiley, Springer, Elsevier发表关于化学键分析方向的专著5部，受邀参加国际会议并作讲座报告360多次。

报告摘要：

The maximum bond multiplicity between two main group atoms is generally assumed to be three. A few years ago, a quadruple bond was proposed for the ground state of C₂, but this was disputed by several groups. I report theoretical studies of diatomic species AeE, where Ae is an alkaline earth atom Be - Ba and E is a neutral or charged main group atom. The results suggest that in some systems there are four attractive orbital interactions that have unusual features. The lecture also presents theoretical results for the recently isolated dication[Hg{Fe(CO)₅}₂]²⁺and the related dianion [Hg{Fe(CO)₄}₂]^2-. The results indicate that mercury has in both complexes he formal oxidation state zero Hg(0).