Dynamic behavior of ammonium ion in the crown ether cavity within Ni(dmit)2 salt as studied by solid-state NMR

S. Takeda; G. Maruta; Tomoyuki Akutagawa; T. Hasegawa; T. Nakamura

doi:10.1016/S0379-6779(02)00284-9

Dynamic behavior of ammonium ion in the crown ether cavity within Ni(dmit)₂ salt as studied by solid-state NMR

S. Takeda, G. Maruta, Tomoyuki Akutagawa, T. Hasegawa, T. Nakamura

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

In the integrated molecular systems of the crown ether-based ionic channel and the electronic conducting column of Ni(dmit)₂, an interaction is expected between the dynamic motion of ions in the crown ether channel and the electronic state of the conducting column. To investigate an ability of the crown ether molecule for providing the environment suitable for the ionic motion, the dynamic behavior of the ammonium ion of semiconducting [(NH₄⁺)(18-crown-6)][Ni(dmit)₂]₃ was studied by the solid state D NMR and ¹⁵N CP NMR. The D NMR spectrum of deuterated analogue of [(ND₄⁺)(18-crown-6)][Ni(dmit)₂]₃ indicated that the ND₄⁺ ion rotated rapidly with jumping rate more than the order of 10⁶ Hz above room temperature. The quadrupole coupling of e²Qq/h = 6.5 kHz remained even at 360 K for deuterium atom of ND₄⁺ ion. The anisotropic tensor of ¹⁵N chemical shift, the principal values of which were σ₁₁ = -356.0 ppm, σ₂₂ = -353.2 ppm and σ₃₃ = -342.6 ppm, was found. These results suggest that the rotating ammonium ion is slightly deformed in the cavity of 18-crown-6.

Original language	English
Pages (from-to)	427-429
Number of pages	3
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00284-9
Publication status	Published - 2003 Mar 13
Externally published	Yes
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sept 10 → 2001 Sept 14

Keywords

Crown ether
Dynamics of ammonium ion
N CP NMR
Ni(dmit) salt
Solid-state D NMR

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0379-6779(02)00284-9

Cite this

@article{dbe09a3f10914470a7bd02ed7a0c25b6,

title = "Dynamic behavior of ammonium ion in the crown ether cavity within Ni(dmit)2 salt as studied by solid-state NMR",

abstract = "In the integrated molecular systems of the crown ether-based ionic channel and the electronic conducting column of Ni(dmit)2, an interaction is expected between the dynamic motion of ions in the crown ether channel and the electronic state of the conducting column. To investigate an ability of the crown ether molecule for providing the environment suitable for the ionic motion, the dynamic behavior of the ammonium ion of semiconducting [(NH4+)(18-crown-6)][Ni(dmit)2]3 was studied by the solid state D NMR and 15N CP NMR. The D NMR spectrum of deuterated analogue of [(ND4+)(18-crown-6)][Ni(dmit)2]3 indicated that the ND4+ ion rotated rapidly with jumping rate more than the order of 106 Hz above room temperature. The quadrupole coupling of e2Qq/h = 6.5 kHz remained even at 360 K for deuterium atom of ND4+ ion. The anisotropic tensor of 15N chemical shift, the principal values of which were σ11 = -356.0 ppm, σ22 = -353.2 ppm and σ33 = -342.6 ppm, was found. These results suggest that the rotating ammonium ion is slightly deformed in the cavity of 18-crown-6.",

keywords = "Crown ether, Dynamics of ammonium ion, N CP NMR, Ni(dmit) salt, Solid-state D NMR",

author = "S. Takeda and G. Maruta and Tomoyuki Akutagawa and T. Hasegawa and T. Nakamura",

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00284-9",

language = "English",

volume = "133-134",

pages = "427--429",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

note = "ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

}

TY - JOUR

T1 - Dynamic behavior of ammonium ion in the crown ether cavity within Ni(dmit)2 salt as studied by solid-state NMR

AU - Takeda, S.

AU - Maruta, G.

AU - Akutagawa, Tomoyuki

AU - Hasegawa, T.

AU - Nakamura, T.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - In the integrated molecular systems of the crown ether-based ionic channel and the electronic conducting column of Ni(dmit)2, an interaction is expected between the dynamic motion of ions in the crown ether channel and the electronic state of the conducting column. To investigate an ability of the crown ether molecule for providing the environment suitable for the ionic motion, the dynamic behavior of the ammonium ion of semiconducting [(NH4+)(18-crown-6)][Ni(dmit)2]3 was studied by the solid state D NMR and 15N CP NMR. The D NMR spectrum of deuterated analogue of [(ND4+)(18-crown-6)][Ni(dmit)2]3 indicated that the ND4+ ion rotated rapidly with jumping rate more than the order of 106 Hz above room temperature. The quadrupole coupling of e2Qq/h = 6.5 kHz remained even at 360 K for deuterium atom of ND4+ ion. The anisotropic tensor of 15N chemical shift, the principal values of which were σ11 = -356.0 ppm, σ22 = -353.2 ppm and σ33 = -342.6 ppm, was found. These results suggest that the rotating ammonium ion is slightly deformed in the cavity of 18-crown-6.

AB - In the integrated molecular systems of the crown ether-based ionic channel and the electronic conducting column of Ni(dmit)2, an interaction is expected between the dynamic motion of ions in the crown ether channel and the electronic state of the conducting column. To investigate an ability of the crown ether molecule for providing the environment suitable for the ionic motion, the dynamic behavior of the ammonium ion of semiconducting [(NH4+)(18-crown-6)][Ni(dmit)2]3 was studied by the solid state D NMR and 15N CP NMR. The D NMR spectrum of deuterated analogue of [(ND4+)(18-crown-6)][Ni(dmit)2]3 indicated that the ND4+ ion rotated rapidly with jumping rate more than the order of 106 Hz above room temperature. The quadrupole coupling of e2Qq/h = 6.5 kHz remained even at 360 K for deuterium atom of ND4+ ion. The anisotropic tensor of 15N chemical shift, the principal values of which were σ11 = -356.0 ppm, σ22 = -353.2 ppm and σ33 = -342.6 ppm, was found. These results suggest that the rotating ammonium ion is slightly deformed in the cavity of 18-crown-6.

KW - Crown ether

KW - Dynamics of ammonium ion

KW - N CP NMR

KW - Ni(dmit) salt

KW - Solid-state D NMR

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DO - 10.1016/S0379-6779(02)00284-9

M3 - Conference article

AN - SCOPUS:0037435203

SN - 0379-6779

VL - 133-134

SP - 427

EP - 429

JO - Synthetic Metals

JF - Synthetic Metals

T2 - ISCOM 2001

Y2 - 10 September 2001 through 14 September 2001

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