Flash Communication: Reaction of a Yttrium Phosphide Complex with Carbon Dioxide Gives a Paddlewheel-Like Phosphinocarboxylate

IF 2.4 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Organometallics Pub Date : 2026-07-13 Epub Date: 2026-06-19 DOI:10.1021/acs.organomet.6c00173

Hannah S. Redmill, George F. S. Whitehead and David P. Mills*,

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引用次数: 0

Abstract

The insertion of carbon dioxide into rare earth metal–phosphorus bonds is underexplored compared to many other rare earth metal–ligand σ-bonds. Treatment of a C₆D₆ solution of the dimeric yttrium bis(trimethylsilyl)phosphide complex [Y(P″)₂(μ-P″)]₂ (1-Y; P″ = {P(SiMe₃)₂}⁻) with 1 atm carbon dioxide resulted in rapid conversion to the dimeric hexaphosphinocarboxylate product [Y{O₂C(P″)-κ²O,O′}{μ-O₂C(P″)-1κO;2κO′}{μ-O₂C(P″)-1:2κ²O;1κO′}]₂ (2-Y), which was characterized by single crystal X-ray diffraction, multinuclear NMR and ATR-IR spectroscopy, and elemental analysis. Complex 2-Y has a paddlewheel-like structure, with one bidentate bis(silyl)phosphinocarboxylate terminally bound at each yttrium center and the other four ligands bridging these ions with two distinct binding modes. This dimeric formulation persists in solution, with dynamic averaging of bridging ligand environments.

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闪光通讯：磷化钇配合物与二氧化碳反应生成桨轮状磷酸羧酸盐

与许多其他稀土金属配体σ键相比，二氧化碳在稀土金属-磷键中插入的研究还不够充分。二聚体钇-二（三甲基硅基）磷化物[Y（P″）2（μ-P″）]2 （1-Y; P″= {P(SiMe3)2}−）用1atm二氧化碳处理C6D6溶液，可快速转化为二聚体六磷酸辛酸盐产物[Y{O2C（P″）-κ2O,O '}{μ-O2C（P″）-1κ 2o；1κO′}]2 (2- y)，通过单晶x射线衍射、多核磁共振、ATR-IR光谱和元素分析对其进行了表征。配合物2-Y具有桨轮状结构，一个双齿双（硅基）膦羧酸盐末端结合在每个钇中心，其他四个配体以两种不同的结合模式连接这些离子。这种二聚体配方在溶液中持续存在，具有桥接配体环境的动态平均。

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来源期刊

Organometallics 化学-无机化学与核化学

CiteScore

5.60

自引率

7.10%

发文量

382

审稿时长

1.7 months

期刊介绍： Organometallics is the flagship journal of organometallic chemistry and records progress in one of the most active fields of science, bridging organic and inorganic chemistry. The journal publishes Articles, Communications, Reviews, and Tutorials (instructional overviews) that depict research on the synthesis, structure, bonding, chemical reactivity, and reaction mechanisms for a variety of applications, including catalyst design and catalytic processes; main-group, transition-metal, and lanthanide and actinide metal chemistry; synthetic aspects of polymer science and materials science; and bioorganometallic chemistry.