Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs: A 2H Solid-State NMR Study | Sciact - CRIS-система Института катализа

Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs: A 2H Solid-State NMR Study Научная публикация

Журнал

The Journal of Physical Chemistry C
ISSN: 1932-7447 , E-ISSN: 1932-7455

Вых. Данные

Год: 2015, Том: 119, Номер: 50, Страницы: 28038-28045 Страниц : 8 DOI: 10.1021/acs.jpcc.5b09435

Ключевые слова

Activation energy; Crystalline materials; Dynamics; Isomers; Metals; Molecules; Nuclear magnetic resonance spectroscopy; Organic solvents; Organometallics; Positive ions

Авторы

Khudozhitkov Alexander E. ^1,2 , Kolokolov Daniil I. ^1,2 , Stepanov Alexander G. ^1,2 , Bolotov Vsevolod A. ³ , Dybtsev Danil N. ^2,3

Организации

1	Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Prospekt Akademika Lavrentieva 5, Novosibirsk 630090, Russia
2	Department of Physical Chemistry, Faculty of Natural Sciences,, Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia
3	Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Prospekt Akademika Lavrentieva 3, Novosibirsk 630090, Russia

Информация о финансировании (2)

1	Российский фонд фундаментальных исследований	14-03-91333
2	Министерство образования и науки Российской Федерации	14.Z50.31.0006

Mobility of the organic linkers in metal–organic frameworks (MOFs) is an established phenomenon. Knowledge of the details of linker motion in MOFs could provide a great deal of information about the linker structure and the way the guest molecules interact with the organic framework. However, the mobility of the organic linkers is poorly characterized. The extent of the influence of the metal cation or guest molecules on linker motion is still unknown for MOFs with identical topologies. In this work, we have analyzed the rotational dynamics of the phenylene ring fragments of terephthalate (1,4-benzenedicarboxylate, bdc) linkers in the series of MOFs [M2(bdc)2(dabco)]·G (M = Co2+, Ni2+, Cu2+, Zn2+; dabco =1,4-diazabicyclo[2.2.2]octane; G = none or dimethylformamide, DMF). We have established that the reorientational motion of the phenylene rings is performed by π-flipping of the plane of the ring about its C2 axis. The dynamics of the phenylene rings is insensitive to the variation of the metal cation, whereas the loading of the guest DMF molecules provides both a significant decrease of the rate of π-flips and an increase of the activation energy for the motion of the phenylene rings.

Khudozhitkov A.E. , Kolokolov D.I. , Stepanov A.G. , Bolotov V.A. , Dybtsev D.N.
Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs: A 2H Solid-State NMR Study
The Journal of Physical Chemistry C. 2015. V.119. N50. P.28038-28045. DOI: 10.1021/acs.jpcc.5b09435 WOS Scopus РИНЦ CAPlusCA OpenAlex

Поступила в редакцию:	28 сент. 2015 г.
Принята к публикации:	16 нояб. 2015 г.
Опубликована online:	3 дек. 2015 г.
Опубликована в печати:	17 дек. 2015 г.

Web of science:	WOS:000366878500018
Scopus:	2-s2.0-84951983835
РИНЦ:	26928038
Chemical Abstracts:	2015:1840776
Chemical Abstracts (print):	164:22879
OpenAlex:	W2287895672

БД	Цитирований
Web of science	35
Scopus	36
РИНЦ	34
OpenAlex	36