A porous crystalline molecular solid explored by hyperpolarized xenon

Piero Sozzani; Angiolina Comotti; Roberto Simonutti; Thomas Meersmann; John W. Logan; Alexander Pines

doi:10.1002/1521-3773(20000804)39:15<2695::AID-ANIE2695>3.0.CO;2-M

A porous crystalline molecular solid explored by hyperpolarized xenon

Piero Sozzani, Angiolina Comotti, Roberto Simonutti, Thomas Meersmann, John W. Logan, Alexander Pines

Research output: Journal Publication › Article › peer-review

213 Citations (Scopus)

Abstract

Volatile species and large gas atoms, such as xenon, can diffuse into the aromatic nanochannels of a solid comprising tris(o-phenylenedioxy)-cyclophosphazene molecules held together by weak interactions. Continuous-flow laser-polarized ¹²⁹Xe NMR spectroscopy shows an anisotropic signal from the xenon atoms inside the crystals as soon as 200 ms after contact of the polarized gas with the sample. The xenon chemical shift anisotropy is concentration dependent (see picture) and undergoes a sign inversion as a result of the change of the symmetry of electron cloud.

Original language	English
Pages (from-to)	2695-2699
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	39
Issue number	15
DOIs	https://doi.org/10.1002/1521-3773(20000804)39:15<2695::AID-ANIE2695>3.0.CO;2-M
Publication status	Published - 4 Aug 2000
Externally published	Yes

Keywords

NMR spectroscopy
Phosphazenes
Supramolecular chemistry
Xenon
Zeolite analogues

ASJC Scopus subject areas

Catalysis
General Chemistry

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10.1002/1521-3773(20000804)39:15<2695::AID-ANIE2695>3.0.CO;2-M

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title = "A porous crystalline molecular solid explored by hyperpolarized xenon",

abstract = "Volatile species and large gas atoms, such as xenon, can diffuse into the aromatic nanochannels of a solid comprising tris(o-phenylenedioxy)-cyclophosphazene molecules held together by weak interactions. Continuous-flow laser-polarized 129Xe NMR spectroscopy shows an anisotropic signal from the xenon atoms inside the crystals as soon as 200 ms after contact of the polarized gas with the sample. The xenon chemical shift anisotropy is concentration dependent (see picture) and undergoes a sign inversion as a result of the change of the symmetry of electron cloud.",

keywords = "NMR spectroscopy, Phosphazenes, Supramolecular chemistry, Xenon, Zeolite analogues",

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year = "2000",

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TY - JOUR

T1 - A porous crystalline molecular solid explored by hyperpolarized xenon

AU - Sozzani, Piero

AU - Comotti, Angiolina

AU - Simonutti, Roberto

AU - Meersmann, Thomas

AU - Logan, John W.

AU - Pines, Alexander

PY - 2000/8/4

Y1 - 2000/8/4

N2 - Volatile species and large gas atoms, such as xenon, can diffuse into the aromatic nanochannels of a solid comprising tris(o-phenylenedioxy)-cyclophosphazene molecules held together by weak interactions. Continuous-flow laser-polarized 129Xe NMR spectroscopy shows an anisotropic signal from the xenon atoms inside the crystals as soon as 200 ms after contact of the polarized gas with the sample. The xenon chemical shift anisotropy is concentration dependent (see picture) and undergoes a sign inversion as a result of the change of the symmetry of electron cloud.

AB - Volatile species and large gas atoms, such as xenon, can diffuse into the aromatic nanochannels of a solid comprising tris(o-phenylenedioxy)-cyclophosphazene molecules held together by weak interactions. Continuous-flow laser-polarized 129Xe NMR spectroscopy shows an anisotropic signal from the xenon atoms inside the crystals as soon as 200 ms after contact of the polarized gas with the sample. The xenon chemical shift anisotropy is concentration dependent (see picture) and undergoes a sign inversion as a result of the change of the symmetry of electron cloud.

KW - NMR spectroscopy

KW - Phosphazenes

KW - Supramolecular chemistry

KW - Xenon

KW - Zeolite analogues

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DO - 10.1002/1521-3773(20000804)39:15<2695::AID-ANIE2695>3.0.CO;2-M

M3 - Article

AN - SCOPUS:0034604589

SN - 1433-7851

VL - 39

SP - 2695

EP - 2699

JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 15

ER -

A porous crystalline molecular solid explored by hyperpolarized xenon

Abstract

Keywords

ASJC Scopus subject areas

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