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Preparation of Novel Materials Using SMMs

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Single-Molecule Magnets and Related Phenomena

Part of the book series: Structure and Bonding ((STRUCTURE,volume 122))

Abstract

Magnetic hysteresis is considered a distinctive feature of bulk magnetic materials, where it arises from long-range ordering and irreversible motion of domain walls. However, many anisotropic high-spin molecules, referred to as Single-Molecule Magnets (SMMs), display a hysteresis loop at low temperature and have the potential of being used as molecular-scale units for information storage. This work reviews recent advances in the realization of new bulk materials and low-dimensional nanostructures based on SMMs. Particular reference will be made to mixed-valence Mn 12 complexes, which comprise the most versatile and best-performing SMMs available to date. Nonetheless, the described criteria for structure tailoring as well as the guiding principles in material design are of general value and applicability. Examples are given of multifunctional materials of either inorganic or hybrid nature which combine in a unique fashion the magnetic properties of embedded SMMs with the conductive, optical and mechanical characteristics of a polymeric host. In the framework of the molecular approach to electronics, successful attempts to organize SMMs into bidimensional arrays on surfaces and to address them individually have been reported. Recent results in this area will be treated exemplarily, with emphasis on molecular design and surface functionalization. The construction of molecular-scale electronic devices embodying SMMs as active components is finally highlighted among the future developments of this lively research area, which straddles the interface between chemistry and physics.

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Abbreviations

AC:

alternating current

AFM:

atomic force microscopy

ATR-FT/IR:

attenuated transmission reflection Fourier transform infrared spectroscopy

DC:

direct current

DVD:

digital video disk

FET:

field effect transistor

H2adc:

anthracene-1,8-dicarboxylic acid (and its derivatives)

Hbet:

betaine

Hdph:

diphenylphosphinic acid

Hdpp:

diphenylphosphate

HF-EPR:

high frequency electron paramagnetic resonance

HL:

16-(acetylthio)hexadecanoic acid

HL′:

16-mercaptohexadecanoic acid

Hmtb:

4-(methylthio)benzoic acid

Hmet:

methacrylic acid

Htc:

3-thiophenecarboxylic acid

HZ:

(4-carboxybenzyl)tributylammonium

hTPD:

N,N′-diphenyl-N,N′-bis(4-hexylphenyl)-[1,1′-biphenyl]-4,4′-diamine

JT:

Jahn–Teller

LB:

Langmuir–Blodgett

MAPLE:

matrix assisted pulsed laser evaporation

MES:

sodium 2-mercaptoethanesulfonate

μCP:

micro-contact printing

MFM:

magnetic force microscopy

ML:

monolayer

MMA:

methyl methacrylate

mpyNIT:

m-N-methylpyridinium nitronylnitroxide

PC:

polycarbonate

PDMS:

poly(dimethylsiloxane)

PLD:

pulsed laser deposition

PMMA:

poly(methyl methacrylate)

PS:

polystyrene

pTPD:

poly(N,N′-diphenyl-N,N′-bis(4-hexylphenyl)-[1,1′-biphenyl]-4,4′-diamine)

QCM:

quartz crystal microbalance

QT:

quantum tunneling

SAM:

self-assembled monolayer

SMM:

single-molecule magnet

SQUID:

superconducting quantum interference device

STM:

scanning tunneling microscopy

TEM:

transmission electron microscopy

ToF-SIMS:

time of flight secondary ion mass spectrometry

UHV:

ultra high vacuum

XPS:

X-ray photoelectron spectroscopy

XRD:

X-ray diffraction

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Acknowledgments

The financial support of Italian MIUR, through FISR, FIRB, and PRIN projects, and of the EU through Human Potential Program RTN-QUEMOLNA (FP6-CT-2003-504880) and NE “MAGMANET” (FP6-NMP3-CT-2005-515767) is gratefully acknowledged.

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Authors and Affiliations

  1. INSTM & Department of Chemistry, University of Modena and Reggio Emilia, via G. Campi 183, 41100, Modena, Italy

    Andrea Cornia, Antonio Fabretti Costantino & Laura Zobbi

  2. INSTM & Department of Chemistry, University of Florence, via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy

    Andrea Caneschi, Dante Gatteschi, Matteo Mannini & Roberta Sessoli

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  1. Andrea Cornia
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  2. Antonio Fabretti Costantino
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  4. Andrea Caneschi
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Correspondence to Andrea Cornia .

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Cornia, A. et al. Preparation of Novel Materials Using SMMs. In: Winpenny, R. (eds) Single-Molecule Magnets and Related Phenomena. Structure and Bonding, vol 122. Springer, Berlin, Heidelberg. https://doi.org/10.1007/430_029

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