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Title: Polymorphic chiral squaraine crystallites in textured thin films
Author: Zablocki, Jennifer
Arteaga Barriel, Oriol
Balzer, Frank
Hertel, Dirk
Holstein, Julian J.
Clever, Guido
Anhäuser, Jana
Puttreddy, Rakesh
Rissanen, Kari
Meerholz, Klaus
Lützen, Arne
Schiek, Manuela
Keywords: Dicroisme circular
Difracció de raigs X
Circular dichroism
X-rays diffraction
Issue Date: 10-Mar-2020
Publisher: Wiley
Abstract: An enantiomerically pure (R)-2-methylpyrrolidine-based anilino squaraine crystallizes in two chiral polymorphs adopting a monoclinicC2 and an orthorhombic P212121structure, respectively. By various thin-film preparation tech-niques, a control of the polymorph formation is targeted. The local texture ofthe resulting textured thin films is connected to the corresponding opticalproperties. Special attention is paid to an unusual Davydov splitting, the aniso-tropic chiroptical response arising from preferred out-of-plane orientation ofthe crystallites, and the impact of the polymorph specific excitonic coupling.
Note: Reproducció del document publicat a:
It is part of: Chirality, 2020, vol. 32, p. 619-631
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ISSN: 0899-0042
Appears in Collections:Articles publicats en revistes (Física Aplicada)

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