Structural Dynamics in a "Breathing" Metal-Organic Framework Studied by Electron Paramagnetic Resonance of Nitroxide Spin Probes | Sciact - CRIS-system of Boreskov Institute of Catalysis

Structural Dynamics in a "Breathing" Metal-Organic Framework Studied by Electron Paramagnetic Resonance of Nitroxide Spin Probes Full article

Journal

Journal of Physical Chemistry Letters
ISSN: 1948-7185

Output data

Year: 2014, Volume: 5, Number: 1, Pages: 20-24 Pages count : 5 DOI: 10.1021/jz402357v

Tags

EPR spectroscopy, guest-host interactions, spin probes, structural hysteresis, TEMPO

Authors

Sheveleva Alena M. ^1,2 , Kolokolov Daniil I. ^2,3 , Gabrienko Anton A. ³ , Stepanov Alexander G. ^2,3 , Gromilov Sergey A. ⁴ , Shundrina Inna K. ⁵ , Sagdeev Renad Z. ¹ , Fedin Matvey V. ¹ , Bagryanskaya Elena G. ^1,5

Affiliations

1	International Tomography Center SB RAS, Institutskaya 3a, 630090 Novosibirsk, Russia
2	Novosibirsk State University, Pirogova 2, 630090 Novosibirsk, Russia
3	Boreskov Institute of Catalysis SB RAS, Lavrentiev av. 5, 630090 Novosibirsk, Russia
4	Nikolaev Institute of Inorganic Chemistry SB RAS, Lavrentiev av. 3, 630090 Novosibirsk, Russia
5	N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry SB RAS, Lavrentiev av. 9, 630090 Novosibirsk, Russia

Funding (5)

1	Russian Foundation for Basic Research	12-03-31329 (01201274262)
2	Russian Foundation for Basic Research	12-03-33010 (01201277394)
3	The Ministry of Education and Science of the Russian Federation	8436
4	The Ministry of Education and Science of the Russian Federation	8456
5	Президиум РАН	5.1.1

Reversible structural rearrangements ("breathing") of metal-organic frameworks (MOFs) are interesting and complex phenomena with many potential applications. They are often triggered by small amounts of adsorbed guest molecules; therefore, the guest-host interactions in breathing MOFs are intensively investigated. Due to the sensitivity limitations, most analytical methods require relatively high concentrations of guests in these studies. However, because guest molecules are not "innocent", breathing behavior may become suppressed and unperturbed structural states inaccessible. We propose here the use of guest nitroxide molecules in tiny concentrations (such as 1 molecule per 1000 unit cells), which serve as spin probes for electron paramagnetic resonance (EPR), for effective study of breathing phenomena in MOFs. Using a perspective MIL-53(Al) framework as an example, we demonstrate the great advantage of this general approach, which avoids perturbation of the framework structure and allows in-depth investigation of guest-host interactions in the breathing mode.

Sheveleva A.M. , Kolokolov D.I. , Gabrienko A.A. , Stepanov A.G. , Gromilov S.A. , Shundrina I.K. , Sagdeev R.Z. , Fedin M.V. , Bagryanskaya E.G.
Structural Dynamics in a "Breathing" Metal-Organic Framework Studied by Electron Paramagnetic Resonance of Nitroxide Spin Probes
Journal of Physical Chemistry Letters. 2014. V.5. N1. P.20-24. DOI: 10.1021/jz402357v WOS Scopus РИНЦ ANCAN PMID OpenAlex

Submitted:	Nov 1, 2013
Accepted:	Dec 3, 2013
Published online:	Dec 6, 2013
Published print:	Jan 2, 2014

Web of science:	WOS:000329331400004
Scopus:	2-s2.0-84891823036
Elibrary:	21862686
Chemical Abstracts:	2013:1898576
Chemical Abstracts (print):	160:58077
PMID:	26276175
OpenAlex:	W2026540327

DB	Citing
Web of science	49
Scopus	50
Elibrary	48
OpenAlex	52