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Tailored solution-based N-heterotriangulene thin films: unravelling the self-assembly

The ability of a series of bridged triarylamines, so-called N-heterotriangulenes, to form multilayer-type 2D-extended films via a solution-based processing method was examined using complementary microscopic techniques. We found that the long-range order, crystallinity, and layer thickness decisivel...

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Main Authors: Hawly, Tim (Author) , Streller, Fabian (Author) , Johnson, Manuel (Author) , Miguez-Lago, Sandra (Author) , Hammer, Natalie (Author) , Hampel, Frank (Author) , Vivod, Dustin (Author) , Zahn, Dirk (Author) , Kivala, Milan (Author) , Branscheid, Robert (Author) , Spiecker, Erdmann (Author) , Fink, Rainer H. (Author)
Format: Article (Journal)
Language:English
Published: 01 April 2021
In: ChemPhysChem
Year: 2021, Volume: 22, Issue: 11, Pages: 1079-1087
ISSN:1439-7641
DOI:10.1002/cphc.202100164
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1002/cphc.202100164
Verlag, lizenzpflichtig, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/cphc.202100164
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Author Notes:Tim Hawly, Fabian Streller, Manuel Johnson, Sandra Miguez-Lago, Natalie Hammer, Frank Hampel, Dustin Vivod, Dirk Zahn, Milan Kivala, Robert Branscheid, Erdmann Spiecker, and Rainer H. Fink
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Summary:The ability of a series of bridged triarylamines, so-called N-heterotriangulenes, to form multilayer-type 2D-extended films via a solution-based processing method was examined using complementary microscopic techniques. We found that the long-range order, crystallinity, and layer thickness decisively depend on the nature of the substituents attached to the polycyclic backbone. Owing to their flat core unit, compounds exhibiting a carbonyl unit at the bridge position provide a superior building block as compared to thioketone-bridged derivatives. In addition, nature and length of the peripheral substituents affect the orientation of the aromatic core unit within highly crystalline films. Hence, our results stress the significance of a suitable molecular framework and provide deeper understanding of structure formation in 2D-confined surroundings for such compounds.
Item Description:First published:
Gesehen am 20.09.2022
Physical Description:Online Resource
ISSN:1439-7641
DOI:10.1002/cphc.202100164

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