Self-organizing layers from complex molecular anions

Nature Communications
Jonas WarnekeJulia Laskin

Abstract

The formation of traditional ionic materials occurs principally via joint accumulation of both anions and cations. Herein, we describe a previously unreported phenomenon by which macroscopic liquid-like thin layers with tunable self-organization properties form through accumulation of stable complex ions of one polarity on surfaces. Using a series of highly stable molecular anions we demonstrate a strong influence of the internal charge distribution of the molecular ions, which is usually shielded by counterions, on the properties of the layers. Detailed characterization reveals that the intrinsically unstable layers of anions on surfaces are stabilized by simultaneous accumulation of neutral molecules from the background environment. Different phases, self-organization mechanisms and optical properties are observed depending on the molecular properties of the deposited anions, the underlying surface and the coadsorbed neutral molecules. This demonstrates rational control of the macroscopic properties (morphology and size of the formed structures) of the newly discovered anion-based layers.

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Citations

May 10, 2019·Physical Chemistry Chemical Physics : PCCP·Matthew R HenryAndrei G Fedorov
Mar 25, 2020·Chemical Communications : Chem Comm·Martin MayerJonas Warneke
Sep 4, 2020·Proceedings of the National Academy of Sciences of the United States of America·Jonas WarnekeJulia Laskin
May 16, 2018·Angewandte Chemie·Julia LaskinVenkateshkumar Prabhakaran
Apr 7, 2019·Proceedings of the National Academy of Sciences of the United States of America·Martin MayerJonas Warneke
Feb 29, 2020·Angewandte Chemie·Pei SuJulia Laskin
Jul 12, 2018·Angewandte Chemie·Khaleel I Assaf, Werner M Nau
Dec 8, 2020·Frontiers in Chemistry·Markus RohdenburgJonas Warneke
May 27, 2021·The Journal of Physical Chemistry. a·Kevin WöhnerThomas Heine
Aug 16, 2019·Journal of the American Society for Mass Spectrometry·Pei SuJulia Laskin
Aug 19, 2020·Journal of the American Society for Mass Spectrometry·Pei SuJulia Laskin
Apr 20, 2019·Analytical Chemistry·Pei SuJulia Laskin
Sep 23, 2021·The Journal of Physical Chemistry Letters·Kie HankinsVijayakumar Murugesan
Sep 16, 2021·Angewandte Chemie·Fangshun YangJonas Warneke
Oct 22, 2021·Analytical Chemistry·Hugo Y Samayoa-OviedoJulia Laskin

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Methods Mentioned

BETA
protein folding
atomic force microscopy
nuclear magnetic resonance
NMR
X-ray

Software Mentioned

JADE
NIS Elements Imaging
Rigaku 2D Data Processing
NWChem

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