一个PNN-异化酸联体的第7组碳基复合物
Jorge P Valdivieso1, Alexander N Erickson1, James R Gardinier1
1Department of Chemistry, Marquette University Milwaukee Wisconsin 53201-1881 USA james.gardinier@marquette.edu.
RSC advances
|October 7, 2024
概括
合成了新的和复合物,其中有一个独特的N2P捐赠体连接体. 这些复合物表现出可调节的电子特性和CO释放行为,脱碳化形式作为强大的减碳剂,易受光启动反应的影响.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 摄影化学的使用.
背景情况:
- 异体酸联体为金属复合体提供了多功能协调环境.
- 了解金属碳基的电子和CO释放特性对于催化和材料科学至关重要.
研究的目的:
- 合成和表征具有N2P捐赠者异酸连接体 (pz2TTP) 的新型和碳化合物复合物.
- 研究这些复合物的电子特性和一氧化碳 (CO) 释放行为.
- 探索这些复合物的光化学,特别是它们对光启动脱碳化反应的易感性.
主要方法:
- 使用pz2TTP连接体合成和碳化合物复合物.
- 使用光谱技术和X射线晶体学 (隐含) 进行表征.
- 密度函数理论 (DFT) 计算 (M06L/Def2-TZVP/PCM(CH3CN)) 用于分析电子结构和氧化还原潜力.
- 使用390nmLED光的光化学辐射研究.
主要成果:
- 已经成功合成了fac-{q2NP-pz2TTP) Re{CO) 3Br,fac-{q3N2P-pz2TTP) M{CO) 3{OTf) (M=Re, Mn),以及fac,cis-{q3N2P-pz2TTP) Mn{CO) 2{NCCH3) {OTf).
- DFT的计算显示,CO释放显著降低了氧化潜力,产生了强大的减少剂.
- 双碳化合物复合体表现出扩大,红移的电子光谱,增强对光启动脱碳的易感性.
- 在气化溶液中的Mn复合物的光解导致了[trans-Mn(pz2TTP=O) ]2和氧化物的形成.
结论:
- 提供N2P的异体酸盐配体促进了稳定的和碳化合物复合物的形成.
- 这些复合物的脱碳化产生了高度减少的物种.
- 复合物的电子和光谱特性与它们的光化学反应性相关,特别是在光启动的CO释放方面.
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