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Keywords = endometallofullerenes

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18 pages, 4189 KB  
Review
Endometallofullerenes in the Gas Phase: Progress and Prospect
by Yameng Hou and Xianglei Kong
Inorganics 2024, 12(3), 68; https://doi.org/10.3390/inorganics12030068 - 23 Feb 2024
Cited by 2 | Viewed by 2436
Abstract
This review describes the progress of the gas-phase study of endometallofullerenes (EMFs) by mass spectrometry and theoretical calculation over the past 15 years. The attention herein focuses on the gas-phase syntheses, reactions, and generation mechanisms of some novel EMF ions, along with their [...] Read more.
This review describes the progress of the gas-phase study of endometallofullerenes (EMFs) by mass spectrometry and theoretical calculation over the past 15 years. The attention herein focuses on the gas-phase syntheses, reactions, and generation mechanisms of some novel EMF ions, along with their structures and properties. The highlighted new species include EMFs with small-size carbon cages of C2n (n < 60), multiple metal atoms (Mx@C2n, x ≥ 3), late transition metals, and encaged ionic bonds. Furthermore, the gas-phase experimental and calculational supports for top-down or bottom-up models are summarized and discussed. These gas-phase results not only provide experimental evidence for the existence of related novel EMF species and possible synthesis methods for them, but they also provide new insights about chemical bonds in restricted space. In addition, the opportunities and further development directions faced by gas-phase EMF study are anticipated. Full article
(This article belongs to the Special Issue Research on Metallofullerenes)
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12 pages, 2114 KB  
Article
Impact of Endometallofullerene on P84 Copolyimide Transport and Thermomechanical Properties
by Galina Polotskaya, Maia Putintseva, Alexandra Pulyalina, Iosif Gofman and Alexander Toikka
Polymers 2018, 10(10), 1108; https://doi.org/10.3390/polym10101108 - 7 Oct 2018
Cited by 3 | Viewed by 3582
Abstract
Novel polymer composite materials, including unique nanoparticles, contribute to the progress of modern technologies. In this work, the endohedral fullerene C60 with incapsulated iron atom (endometallofullerene Fe@C60) is used for modification of P84 copolyimide. The impact of 0.1, 0.5, and [...] Read more.
Novel polymer composite materials, including unique nanoparticles, contribute to the progress of modern technologies. In this work, the endohedral fullerene C60 with incapsulated iron atom (endometallofullerene Fe@C60) is used for modification of P84 copolyimide. The impact of 0.1, 0.5, and 1 wt % endometallofullerene on the structure and physicochemical properties of polymer films is studied through scanning electron microscopy, thermogravimetric analysis, and thermomechanical tests. Transport properties are estimated through sorption and pervaporation techniques toward methanol and methyl acetate mixture. The inclusion of endometallofullerene into the copolyimide matrix improves membrane permeability and selectivity in the separation of methanol—methyl acetate mixtures. The maximal effect is achieved with a composite containing 0.5 wt % Fe@C60. The developed composites are effective for energy and resource saving purification of methyl acetate by pervaporation. Full article
(This article belongs to the Special Issue Polymers for Modern and Advanced Engineering Applications)
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