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
收藏
页码：22272 / 22281
页数：10
相关论文
共 81 条
[1]   Molecular nanomagnets for information technologies [J].
Affronte, Marco .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (12) :1731-1737
[2]   Storing quantum information in chemically engineered nanoscale magnets [J].
Ardavan, A. ;
Blundell, S. J. .
JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (12) :1754-1760
[3]   Will spin-relaxation times in molecular magnets permit quantum information processing? [J].
Ardavan, Arzhang ;
Rival, Olivier ;
Morton, John J. L. ;
Blundell, Stephen J. ;
Tyryshkin, Alexei M. ;
Timco, Grigore A. ;
Winpenny, Richard E. P. .
PHYSICAL REVIEW LETTERS, 2007, 98 (05)
[4]   Design of magnetic coordination complexes for quantum computing [J].
Aromi, Guillem ;
Aguila, David ;
Gamez, Patrick ;
Luis, Fernando ;
Roubeau, Olivier .
CHEMICAL SOCIETY REVIEWS, 2012, 41 (02) :537-546
[5]   ESR LINEWIDTHS IN SOLUTION .2. ANALYSIS OF SPIN-ROTATIONAL RELAXATION DATA [J].
ATKINS, PW ;
KIVELSON, D .
JOURNAL OF CHEMICAL PHYSICS, 1966, 44 (01) :169-&
[6]   Tandem Arrays of TEMPO and Nitronyl Nitroxide Radicals with Designed Arrangements on DNA [J].
Atsumi, Hiroshi ;
Maekawa, Kensuke ;
Nakazawa, Shigeaki ;
Shiomi, Daisuke ;
Sato, Kazunobu ;
Kitagawa, Masahiro ;
Takui, Takeji ;
Nakatani, Kazuhiko .
CHEMISTRY-A EUROPEAN JOURNAL, 2012, 18 (01) :178-183
[7]   Dynamics and spin relaxation of tempone in a host crystal. An ENDOR, high field EPR and electron spin echo study [J].
Barbon, A ;
Brustolon, M ;
Maniero, AL ;
Romanelli, M ;
Brunel, LC .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1999, 1 (17) :4015-4023
[8]   Structure and dynamics of the triplet state of oligothiophenes in isotropic and partially oriented matrices [J].
Barbon, A ;
Bortolus, M ;
Maniero, AL ;
Brustolon, M .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2005, 7 (15) :2894-2899
[9]   Dynamics of the triplet state of a dithiophene in different solid matrixes studied by transient and pulse EPR techniques [J].
Barbon, A ;
Bortolus, M ;
Brustolon, M ;
Comotti, A ;
Maniero, AL ;
Segre, U ;
Sozzani, P .
JOURNAL OF PHYSICAL CHEMISTRY B, 2003, 107 (14) :3325-3331
[10]   Development and validation of an integrated computational approach for the modeling of cw-ESR spectra of free radicals in solution:: p-(methylthio)phenyl nitronylnitroxide in toluene as a case study [J].
Barone, Vincenzo ;
Brustolon, Marina ;
Cimino, Paola ;
Polimeno, Antonino ;
Zerbetto, Mirco ;
Zoleo, Alfonso .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (49) :15865-15873
123456789