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Yi Jiang
다차원 탄소재료 연구단
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Organic Radical-Linked Covalent Triazine Framework with Paramagnetic Behavior

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Title
Organic Radical-Linked Covalent Triazine Framework with Paramagnetic Behavior
Author(s)
Yi Jiang; Inseon Oh; Se Hun Joo; Onur Buyukcakir; Xiong Chen; Sun Hwa Lee; Ming Huang; Won Kyung Seong; Jin Hoon Kim; Jan-Uwe Rohde; Sang Kyu Kwak; Jung-Woo Yoo; Rodney S. Ruoff
Publication Date
2019-05
Journal
ACS NANO, v.13, no.5, pp.5251 - 5258
Publisher
AMER CHEMICAL SOC
Abstract
The production of multifunctional pure organic materials that combine different sizes of pores and a large number of electron spins is highly desirable due to their potential applications as polarizers for dynamic nuclear polarization-nuclear magnetic resonance and as catalysts and magnetic separation media. Here, we report a polychlorotriphenylmethyl radical-linked covalent triazine framework (PTMR-CTF). Two different sizes of micropores were established by N 2 sorption and the presence of unpaired electrons (carbon radicals) by electron spin resonance and superconducting quantum interference device-vibrating sample magnetometer analyses. Magnetization measurements demonstrate that this material exhibits spin-half paramagnetism with a spin concentration of 2.63 × 10 23 spins/mol. We also determined the microscopic origin of the magnetic moments in PTMR-CTF by investigating its spin density and electronic structure using density functional theory calculations. © 2019 American Chemical Society.
URI
https://pr.ibs.re.kr/handle/8788114/5842
ISSN
1936-0851
Appears in Collections:
Center for Multidimensional Carbon Materials(다차원 탄소재료 연구단) > Journal Papers (저널논문)
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