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Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs : A 2H Solid-State NMR Study. / Khudozhitkov, Alexander E.; Kolokolov, Daniil I.; Stepanov, Alexander G. и др.

в: Journal of Physical Chemistry C, Том 119, № 50, 17.11.2015, стр. 28038-28045.

Результаты исследований: Научные публикации в периодических изданияхстатьяРецензирование

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Khudozhitkov AE, Kolokolov DI, Stepanov AG, Bolotov VA, Dybtsev DN. Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs: A 2H Solid-State NMR Study. Journal of Physical Chemistry C. 2015 нояб. 17;119(50):28038-28045. doi: 10.1021/acs.jpcc.5b09435

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@article{009f06d64227469ba7035bb3c1730b31,
title = "Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs: A 2H Solid-State NMR Study",
abstract = "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.",
author = "Khudozhitkov, {Alexander E.} and Kolokolov, {Daniil I.} and Stepanov, {Alexander G.} and Bolotov, {Vsevolod A.} and Dybtsev, {Danil N.}",
year = "2015",
month = nov,
day = "17",
doi = "10.1021/acs.jpcc.5b09435",
language = "English",
volume = "119",
pages = "28038--28045",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "50",

}

RIS

TY - JOUR

T1 - Metal-Cation-Independent Dynamics of Phenylene Ring in Microporous MOFs

T2 - A 2H Solid-State NMR Study

AU - Khudozhitkov, Alexander E.

AU - Kolokolov, Daniil I.

AU - Stepanov, Alexander G.

AU - Bolotov, Vsevolod A.

AU - Dybtsev, Danil N.

PY - 2015/11/17

Y1 - 2015/11/17

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84951983835&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.5b09435

DO - 10.1021/acs.jpcc.5b09435

M3 - Article

AN - SCOPUS:84951983835

VL - 119

SP - 28038

EP - 28045

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 50

ER -

ID: 23318885