A slow relaxing species for molecular spin devices: EPR characterization of static and dynamic magnetic properties of a nitronyl nitroxide radical

被引：21

作者：

Collauto, A. ^{[1
]}

Mannini, M. ^{[2
,3
]}

Sorace, L. ^{[2
,3
]}

Barbon, A. ^{[1
,4
]}

Brustolon, M. ^{[1
,4
]}

Gatteschi, D. ^{[2
,3
]}

机构：

[1] Univ Padua, Dipartimento Sci Chim, I-35131 Padua, Italy

[2] Univ Florence, Dipartimento Chim Ugo Schiff, I-50019 Sesto Fiorentino, FI, Italy

[3] INSTM RU Firenze, I-50019 Sesto Fiorentino, FI, Italy

[4] INSTM RU Padova, I-35131 Padua, Italy

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 41期

关键词：

ELECTRON-PARAMAGNETIC-RESONANCE; CW-ESR SPECTRA; INTEGRATED COMPUTATIONAL APPROACH; LATTICE-RELAXATION; DIFFUSION TENSOR; TRIPLET-STATE; LINEWIDTHS; CRYSTAL; LIQUIDS; PHASE;

D O I：

10.1039/c2jm35076a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Nitronyl nitroxides (NitR) are a family of persistent radicals widely used in molecular magnetism and recently suggested as potential candidates for spintronic applications. In this paper we characterize by X-and W-band Electron Paramagnetic Resonance (EPR) spectroscopy the new radical S-4-(nitronyl nitroxide) benzyl ethanethioate (NitSAc) designed for assembling on Au surfaces. We determined the radical magnetic tensors and studied by X-band pulse EPR its spin relaxation behaviour in fluid and glassy solutions of toluene. A comparison with the well known nitroxide 3-carbamoyl-2,2,5,5-tetramethyl-3-pyrrolin-1-oxyl (CTPO) is afforded. The advantages of using NitSAc in technological applications are discussed on the basis of the slow spin relaxation demonstrated by this study.

引用

页码：22272 / 22281

页数：10