Photophysical Engineering of Transition Metal pi-Diborene and -Diboryne Complexes

过渡金属π-二硼烯和-二硼炔配合物的光物理工程

• 批准号: 271723449
• 负责人: Professor Dr. Holger Braunschweig
• 金额: --
• 依托单位: Institut für Anorganische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2015
• 资助国家: 德国
• 起止时间: 2014-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/271723449?language=en
• 关键词: Photophysical; Engineering; Transition; Metal; pi

The construction of boron-element and boron-boron multiple bonds has been a major research focus of the Braunschweig group in the last few years, culminating in the isolation of B-N and B-O triple bond and B-C double bond containing iminoboryl, oxoboryl and alkylideneboryl complexes of platinum, as well as in the synthesis of diborenes and diborynes, the all-boron analogues of alkenes and alkynes. In the course of this work we were able to coordinate diborenes and diborynes to coinage metal centers and found the resulting complexes to be highly luminescent. Whereas copper(I) and silver(I) complexes of diborenes exhibit fluorescence in unusually high quantum yields of 0.18-0.95 with lifetimes of a few nanoseconds, a diboryne with three CuCl coordinated to it shows intense emission on the microsecond timescale, indicating the luminescence to be phosphorescence in nature.This project aims at the investigation and understanding of the photophysical properties of diborene and diboryne transition metal complexes. The proposed work represents the first foray of our groups with such lab curiosities into the field of materials science, exploring these fundamentally new classes of compounds in order to develop them further and make them available for applications which exploit photoactive materials.

硼元素和硼-硼多重键的构建一直是Braunschweig团队近年来的主要研究热点，最终分离出含有亚氨基硼基、氧代硼基和亚烷基硼基配合物的B-N和B-O三键以及B-C双键铂，以及二硼烯和二硼炔（烯烃和炔烃的全硼类似物）的合成。在这项工作的过程中，我们能够协调二硼烯和二硼炔来创造金属中心，并发现所得的配合物具有高度发光性。虽然二硼烯的铜 (I) 和银 (I) 配合物表现出异常高的量子产率 0.18-0.95 的荧光，寿命为几纳秒，但具有三个 CuCl 配位的二硼炔在微秒时间尺度上表现出强烈的发射，表明发光本质上是磷光。该项目旨在研究和了解二硼烯和二硼炔过渡金属配合物的光物理性质。这项拟议的工作代表了我们团队对材料科学领域的实验室好奇心的首次尝试，探索这些全新的化合物类别，以进一步开发它们，并使它们可用于利用光敏材料的应用。

项目成果

Strongly Phosphorescent Transition Metal π-Complexes of Boron-Boron Triple Bonds.

强磷光过渡金属硼-硼三键配合物。

• DOI: 10.1021/jacs.7b00766
• 发表时间: 2017-03-27
• 期刊: Journal of the American Chemical Society
• 影响因子: 15
• 作者: H. Braunschweig;Theresa Dellermann;Rian D. Dewhurst;Benjamin Hupp;T. Kramer;James D. Mattock;J. Mies;A. K. Phukan;Andreas Steffen;A. Vargas
• 通讯作者: A. Vargas

Bottleable Neutral Analogues of [B2 H5 ]- as Versatile and Strongly Binding η2 Donor Ligands.

[B2 H5 ] 的瓶装中性类似物- 作为多功能且强结合的 α2 供体配体。

• DOI: 10.1002/anie.201801722
• 发表时间: 2018-05-22
• 期刊: Angewandte Chemie
• 作者: Sunewang R. Wang;Dominic Prieschl;James D. Mattock;Merle Arrowsmith;Conor Pranckevicius;Tom E. Stennett;Rian D. Dewhurst;A. Vargas;H. Braunschweig
• 通讯作者: H. Braunschweig