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Zeitschrift für Naturforschung B

A Journal of Chemical Sciences


IMPACT FACTOR 2018: 0.961

CiteScore 2018: 0.91

SCImago Journal Rank (SJR) 2018: 0.263
Source Normalized Impact per Paper (SNIP) 2018: 0.505

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1865-7117
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Volume 73, Issue 11

Issues

Studie über den Einfluss des Fluorierungsgrades an einem tetradentaten C^N*N^C-Luminophor auf die photophysikalischen Eigenschaften seiner Platin(II)-Komplexe und deren Aggregation

A study of the influence of the degree of fluorination of a C^N*N^C luminophor on the photophysical properties of its platinum(II) complexes and their aggregation

Sebastian Wilde
  • Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, Münster D-48149, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Linda Stegemann
  • Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, Münster D-48149, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Constantin G. Daniliuc
  • Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, Münster D-48149, Germany
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  • De Gruyter OnlineGoogle Scholar
/ Tobias Koch
  • Institut für Festkörpertheorie und Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, Münster D-48149, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Nikos L. Doltsinis
  • Institut für Festkörpertheorie und Center for Multiscale Theory and Computation, Westfälische Wilhelms-Universität Münster, Wilhelm-Klemm-Straße 10, Münster D-48149, Germany
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Cristian A. Strassert
  • Corresponding author
  • Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, Münster D-48149, Germany
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Published Online: 2018-10-23 | DOI: https://doi.org/10.1515/znb-2018-0139

Abstract

Herein, we present three new tetradentate C^N*N^C luminophores and their platinum(II) complexes. We describe the influence of the degree of fluorination at the phenylpyridine luminophore on the photophysical properties of the monomeric species. A blue-shift can be observed with increasing number of fluorine atoms (0–6), which is related to a growing HOMO-LUMO gap that reaches a maximum for four halogen moieties. Increasing degree of fluorination enables intermolecular Pt–Pt interactions and promotes emission from 3MMLCT states in amorphous solids and matrices, with the drawback of lowered solubility. A clear trend towards layered packing patterns in crystals has been observed within the series. This knowledge is important for the design and realization of triplet emitters with aggregation-controlled luminescence towards potential applications in optoelectronic devices.

Keywords: aggregation; photophysics; Pt(II) complexes; triplet emitters

Dedicated to: Professor Bernt Krebs zum 80. Geburtstag gewidmet.

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About the article

Received: 2018-07-04

Accepted: 2018-09-01

Published Online: 2018-10-23

Published in Print: 2018-11-27


Citation Information: Zeitschrift für Naturforschung B, Volume 73, Issue 11, Pages 849–863, ISSN (Online) 1865-7117, ISSN (Print) 0932-0776, DOI: https://doi.org/10.1515/znb-2018-0139.

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