Mn(II)-卟啉酸亚硝基配合物光诱导的硝基阴离子/HNO释放

IF 4.2 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Chemical Communications Pub Date : 2025-01-07 DOI:10.1039/d4cc06203e

Shankhadeep Saha , Sayani Maity , Bapan Samanta , Riya Ghosh , Kalishankar Bhattacharyya , Biplab Mondal

引用次数: 0

摘要

具有{MnNO}6构型的mni -亚硝基通常被认为具有低自旋的电子特性[mnni -NO+]，因此从mni -亚硝基中释放HNO/ NO¯是不利的。虽然只有少数{MnNO}6已知在特定条件下释放NO，但迄今为止，中四基（4-甲氧基苯基）卟啉框架中的mnni -亚硝基是唯一在中性或阴离子第六配体存在下释放NO的报道。合成了Mn(II)-卟啉酸亚硝基配合物，1,[Mn(TTMPP2-)(NO)] {H2TTMPP = 5,10,15,20-四（3,4,5-三甲氧基苯基）卟啉}。发现配合物1在-40℃的二氯甲烷溶液中，在可见光存在下，向[FeIII(TPP)Cl]和[FeIII(dtc)3] {H2TPP =四苯基卟啉和dtc =二乙基二硫代氨基甲酸酯}提供硝基阴离子（NO-），生成相应的Fe(II)-亚硝基。进一步，当配合物1与等量的HBF4在可见光下搅拌时，观察到顶空气体中存在N2O。这反过来表明，在可见光下，配合物1在H+存在的情况下提供HNO。这些研究表明，在可见光存在下，配合物1充当NO-/HNO供体。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Photo-induced nitroxyl anion/HNO release from a nitrosyl complex of Mn(ii)–porphyrinate†

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Photo-induced nitroxyl anion/HNO release from a nitrosyl complex of Mn(ii)–porphyrinate†

A nitrosyl complex of Mn^II–porphyrinate, has been synthesized and characterized. It was found to donate a nitroxyl anion (NO⁻) to suitable acceptors in dichloromethane solution in the presence of visible light. The evolution of N₂O and the characteristic reaction with PPh₃ in the presence of H⁺ confirms the NO⁻/HNO donation.

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来源期刊

Chemical Communications 化学-化学综合

CiteScore

8.60

自引率

4.10%

发文量

2705

审稿时长

1.4 months

期刊介绍： ChemComm (Chemical Communications) is renowned as the fastest publisher of articles providing information on new avenues of research, drawn from all the world''s major areas of chemical research.