Three-Dimensional Molecular Packing of Thin Organic Films of PTCDI-C8 Determined by Surface X-ray Diffraction

被引：74

作者：

Krauss, Tobias N. ^{[1
]}

Barrena, Esther ^{[1
,2
]}

Zhang, Xue N. ^{[1
]}

de Oteyza, Dimas G. ^{[1
]}

Major, Janos ^{[1
]}

Dehm, Volker ^{[3
]}

Wuerthner, Frank ^{[3
]}

Cavalcanti, Leide P. ^{[4
]}

Dosch, Helmut ^{[1
,2
]}

机构：

[1] Max Planck Inst Met Res, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Theoret & Angew Phys, D-70550 Stuttgart, Germany

[3] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany

[4] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

LANGMUIR | 2008年 / 24卷 / 22期

关键词：

D O I：

10.1021/la8030182

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We have determined the full molecular 3D packing of thin organic films of the archetypical organic n-type semiconductor N,N'-dioctyl-3,4:9,10-perylene tetracarboxylic diimide(PTCDI-C-8) by surface X-ray crystallography. We show that PTCDI-C-8 forms smooth layered films on Al2O3 (11-20) with an outstanding degree of molecular order. The thin-film structure is found to consist of a triclinic unit cell with the plane of the aromatic core tilted by 67 +/- 2 degrees with respect to the surface plane, which differs significantly from the bulk structure. The 3D crystallites extend with vertical coherent order across the entire film thickness.

引用

页码：12742 / 12744

页数：3

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