Anisotropic molecular packing of soluble C60 fullerenes in hexagonal nanocrystals obtained by solvent vapor annealing

Renato Colle; Giuseppe Grosso; Alberto Ronzani; Massimo Gazzano; Vincenzo Palermo

doi:10.1016/j.carbon.2011.11.003

Anisotropic molecular packing of soluble C₆₀ fullerenes in hexagonal nanocrystals obtained by solvent vapor annealing

Renato Colle (Corresponding Author), Giuseppe Grosso, Alberto Ronzani, Massimo Gazzano, Vincenzo Palermo (Corresponding Author)

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Abstract

We describe the self-assembly of soluble, chemically modified fullerene [6,6]-phenyl C ₆₁ butyric acid methyl ester (PCBM) into a new crystalline phase where the C ₆₀ moieties are arranged in parallel layers. Minimum C ₆₀ center-to-center distance is 10 within the layers, and up to 15 perpendicular to the layers. Highly anisotropic, mesoscopic hexagonal crystals of this material, with a lateral size of many microns and a thickness below 1 μm, are obtained from chloroform solution by solvent vapor annealing, and characterized by optical microscopy and X-ray diffraction. The crystalline structure is deduced combining experimental data with molecular modeling and ab initio calculations. The large difference in C ₆₀-C ₆₀ spacing indicates a high anisotropy in electrical and charge transport properties of this new phase.

Original language	English
Pages (from-to)	1332-1337
Number of pages	6
Journal	Carbon
Volume	50
Issue number	3
DOIs	https://doi.org/10.1016/j.carbon.2011.11.003
Publication status	Published - 1 Mar 2012
MoE publication type	A1 Journal article-refereed

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title = "Anisotropic molecular packing of soluble C60 fullerenes in hexagonal nanocrystals obtained by solvent vapor annealing",

abstract = "We describe the self-assembly of soluble, chemically modified fullerene [6,6]-phenyl C 61 butyric acid methyl ester (PCBM) into a new crystalline phase where the C 60 moieties are arranged in parallel layers. Minimum C 60 center-to-center distance is 10 within the layers, and up to 15 perpendicular to the layers. Highly anisotropic, mesoscopic hexagonal crystals of this material, with a lateral size of many microns and a thickness below 1 μm, are obtained from chloroform solution by solvent vapor annealing, and characterized by optical microscopy and X-ray diffraction. The crystalline structure is deduced combining experimental data with molecular modeling and ab initio calculations. The large difference in C 60-C 60 spacing indicates a high anisotropy in electrical and charge transport properties of this new phase.",

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T1 - Anisotropic molecular packing of soluble C60 fullerenes in hexagonal nanocrystals obtained by solvent vapor annealing

AU - Colle, Renato

AU - Grosso, Giuseppe

AU - Ronzani, Alberto

AU - Gazzano, Massimo

AU - Palermo, Vincenzo

PY - 2012/3/1

Y1 - 2012/3/1

N2 - We describe the self-assembly of soluble, chemically modified fullerene [6,6]-phenyl C 61 butyric acid methyl ester (PCBM) into a new crystalline phase where the C 60 moieties are arranged in parallel layers. Minimum C 60 center-to-center distance is 10 within the layers, and up to 15 perpendicular to the layers. Highly anisotropic, mesoscopic hexagonal crystals of this material, with a lateral size of many microns and a thickness below 1 μm, are obtained from chloroform solution by solvent vapor annealing, and characterized by optical microscopy and X-ray diffraction. The crystalline structure is deduced combining experimental data with molecular modeling and ab initio calculations. The large difference in C 60-C 60 spacing indicates a high anisotropy in electrical and charge transport properties of this new phase.

AB - We describe the self-assembly of soluble, chemically modified fullerene [6,6]-phenyl C 61 butyric acid methyl ester (PCBM) into a new crystalline phase where the C 60 moieties are arranged in parallel layers. Minimum C 60 center-to-center distance is 10 within the layers, and up to 15 perpendicular to the layers. Highly anisotropic, mesoscopic hexagonal crystals of this material, with a lateral size of many microns and a thickness below 1 μm, are obtained from chloroform solution by solvent vapor annealing, and characterized by optical microscopy and X-ray diffraction. The crystalline structure is deduced combining experimental data with molecular modeling and ab initio calculations. The large difference in C 60-C 60 spacing indicates a high anisotropy in electrical and charge transport properties of this new phase.

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Anisotropic molecular packing of soluble C₆₀ fullerenes in hexagonal nanocrystals obtained by solvent vapor annealing

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