Activation of robust bonds by carbonyl complexes of Mn, Fe and Co

Radzhabov, Maxim R.; Mankad, Neal P.

doi:10.1039/d3cc03078d

Chem. Commun.

2023

DOI: 10.1039/d3cc03078d

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Activation of robust bonds by carbonyl complexes of Mn, Fe and Co

Maxim R. Radzhabov,

Neal P. Mankad

Abstract: Metal carbonyl complexes possess among the most storied histories of any compound class in organometallic chemistry. Nonetheless, these old dogs continue to be taught new tricks. In this Feature, we...

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2024

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Cited by 2 publications

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Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn²⁺ Delivery

Zheng,

Wei,

Yang

et al. 2024

Advanced NanoBiomed Research

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Photoactivatable carbon monoxide‐releasing molecules (CORMs), typically based on transition‐metal carbonyl complexes, have reliance on activation by UV or visible light that restricts their biomedical applications. To address this limitation, a near‐infrared (NIR)‐responsive nanoplatform is presented based on upconversion nanoparticles (UCNPs) loading with manganese carbonyl complex Mn2(CO)10 that concurrently releases CO and manganese ion (Mn2+). With the UCNPs, the more tissue‐penetrable NIR is used to locally generate UV light for photodecomposition of Mn2(CO)10 into CO and manganese oxide (MnOX), after which MnOX is reduced to Mn2+ by the overexpressed glutathione in cancer cells. Moreover, the released Mn2+ can serve as a magnetic resonance imaging contrast agent to monitor the NIR‐controlled corelease of CO and Mn2+ in real time. Therefore, this nanoplatform can provide a potential strategy for NIR‐enabled spatiotemporally release of CO and Mn2+, enhancing the controlled delivery and biomedical application of CORMs.

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Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn²⁺ Delivery

Zheng,

Wei,

Yang

et al. 2024

Advanced NanoBiomed Research

View full text Add to dashboard Cite

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Reactivity of an Iron Carbonyl Dianion Dictated by a Lewis Basic Appendant

Zhang,

Guo,

Chu

2024

Eur J Inorg Chem

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Studies toward transition metals in negative oxidation states are much less explored compared to those in zero or positive oxidation states. In this study, we present the synthesis and reactivity studies of an Fe(‐II) carbonyl dianion (3) featuring an appended Lewis base, [(L)Fe(CO)3]2‐ (L=Ph2PCH2CH2NMe2). Unlike the well‐known reactivity of [Fe(CO)4]2‐ with common electrophiles (E+) which typically forms [(E)2Fe(CO)4], 3 reacted with 2 equiv. of Ph3SnCl to afford a mixture of two products: one being an Fe(II) bis(triphenylstannyl) product (4), and the other an Fe stannylene product (5). Further insights into the reactivity of 3 was elucidated through its reactions with 2 equiv. of Cy3SnCl or Me3SiCl, producing an Fe(II) bis(tricyclohexylstannyl) product (8) and a zwitterionic complex (11), respectively, the latter emerging via THF ring‐opening. Intermediates generated from reactions of 3 with 1 equiv. of each electrophile were isolated to shed light on the reaction mechanisms, highlighting the influence of appended Lewis base on the reactivity of metal carbonyl dianions, especially the generation of the novel stannylene complex 5. The electronic structure of this paramagnetic stannylene complex was also investigated by computational studies.

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Activation of robust bonds by carbonyl complexes of Mn, Fe and Co

Abstract: Metal carbonyl complexes possess among the most storied histories of any compound class in organometallic chemistry. Nonetheless, these old dogs continue to be taught new tricks. In this Feature, we...

Cited by 2 publications

References 153 publications

Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn²⁺ Delivery

Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn²⁺ Delivery

Reactivity of an Iron Carbonyl Dianion Dictated by a Lewis Basic Appendant

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Activation of robust bonds by carbonyl complexes of Mn, Fe and Co

Abstract: Metal carbonyl complexes possess among the most storied histories of any compound class in organometallic chemistry. Nonetheless, these old dogs continue to be taught new tricks. In this Feature, we...

Cited by 2 publications

References 153 publications

Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn2+ Delivery

Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn2+ Delivery

Reactivity of an Iron Carbonyl Dianion Dictated by a Lewis Basic Appendant

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Product

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Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn²⁺ Delivery

Development of Manganese Carbonyl Loaded Upconversion Nanoparticles for Near‐Infrared‐Triggered Carbon Monoxide and Mn²⁺ Delivery