Square Planar Ru(iPr2PCH2CH2NH)2 and its Role in Fast and Selective Catalytic Amine–Borane Dehydropolymerization to Form High Molecular Weight Polyaminoboranes

IF 16.9 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Angewandte Chemie International Edition Pub Date : 2025-04-07 DOI:10.1002/anie.202500019

Mathew J. Cross, M. Arif Sajjad, Stuart A. Macgregor, Andrew S. Weller

引用次数: 0

Abstract

Addition of ^tBuOK to orange RuCl₂(ⁱPr₂PCH₂CH₂NH₂)₂ forms the pink, square planar, Ru(II) complex Ru(ⁱPr₂PCH₂CH₂NH)₂. This is an active catalyst (ToF 250 s⁻¹) for the dehydropolymerization of H₃B·NMeH₂ to give high molecular weight polyaminoborane, [H₂BNMeH]_n (M_n = 138 700 g mol⁻¹) at low loadings (0.03 mol%). An induction period observed is due to the initial formation of a hydroxy-hydride species, Ru(ⁱPr₂PCH₂CH₂NH₂)₂(OH)(H), prior to fast turnover.

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方形平面 Ru(iPr2PCH2CH2NH)2 及其在快速、选择性催化胺-硼烷脱氢聚合形成高分子量聚氨基硼烷中的作用

将 tBuOK 加入橙色的 RuCl2(iPr2PCH2CH2NH2)2 中，会形成粉红色的方形平面 Ru(II) 复合物 Ru(iPr2PCH2CH2NH)2。这是一种活性催化剂（ToF 250 s-1），可用于 H3B-NMeH2 的脱水聚合，在低负载（0.03 mol%）条件下生成高分子量的聚氨基硼烷 [H2BNMeH]n（Mn = 138,700 g mol-1）。在快速转化之前，会出现一个诱导期，这是由于最初形成了一种羟基酸酐物种 Ru(iPr2PCH2CH2NH2)2(OH)(H)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Angewandte Chemie International Edition 化学-化学综合

CiteScore

26.60

自引率

6.60%

发文量

3549

审稿时长

1.5 months

期刊介绍： Angewandte Chemie, a journal of the German Chemical Society (GDCh), maintains a leading position among scholarly journals in general chemistry with an impressive Impact Factor of 16.6 (2022 Journal Citation Reports, Clarivate, 2023). Published weekly in a reader-friendly format, it features new articles almost every day. Established in 1887, Angewandte Chemie is a prominent chemistry journal, offering a dynamic blend of Review-type articles, Highlights, Communications, and Research Articles on a weekly basis, making it unique in the field.