Self-organizing layers from complex molecular anions.
Jonas Warneke,Martin E. McBriarty,Shawn L. Riechers,Swarup China,Mark H. Engelhard,Edoardo Aprà,Robert P. Young,Nancy M. Washton,Carsten Jenne,Grant E. Johnson,Julia Laskin,Julia Laskin +11 more
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TLDR
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 is described.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. Using ions of one polarity to form functional layers on surfaces is usually challenging because of counter ions which are inevitably present in the condensed phase. Here the authors demonstrate accumulation of mass-selected anions and neutral molecules from the gas phase to form a self-organizing liquid-like layer on a surface.read more
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The Chaotropic Effect as an Assembly Motif in Chemistry.
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Rational design of an argon-binding superelectrophilic anion
Martin Mayer,Valentin van Lessen,Markus Rohdenburg,Gao-Lei Hou,Zheng Yang,Rüdiger M. Exner,Edoardo Aprà,Vladimir A. Azov,Simon Grabowsky,Sotiris S. Xantheas,Sotiris S. Xantheas,Knut R. Asmis,Xue-Bin Wang,Carsten Jenne,Jonas Warneke,Jonas Warneke +15 more
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References
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Journal ArticleDOI
Balanced basis sets of split valence, triple zeta valence and quadruple zeta valence quality for H to Rn: Design and assessment of accuracy
TL;DR: A large set of more than 300 molecules representing all elements-except lanthanides-in their common oxidation states was used to assess the quality of the bases all across the periodic table, and recommendations are given which type of basis set is used best for a certain level of theory and a desired quality of results.
Journal ArticleDOI
Effect of the damping function in dispersion corrected density functional theory
TL;DR: It is shown by an extensive benchmark on molecular energy data that the mathematical form of the damping function in DFT‐D methods has only a minor impact on the quality of the results and BJ‐damping seems to provide a physically correct short‐range behavior of correlation/dispersion even with unmodified standard functionals.
Journal ArticleDOI
Toward reliable density functional methods without adjustable parameters: The PBE0 model
Carlo Adamo,Vincenzo Barone +1 more
TL;DR: In this paper, an analysis of the performances of a parameter free density functional model (PBE0) obtained combining the so-called PBE generalized gradient functional with a predefined amount of exact exchange is presented.
Journal ArticleDOI
Hard and soft acids and bases
TL;DR: In this paper, the rate data for the generalized nucleophilic displacement reaction were reviewed, and the authors presented a method to estimate the rate of the generalized displacement reaction in terms of the number of nucleophiles.
Journal ArticleDOI
Self-assembly at all scales.
TL;DR: Self-assembling processes are common throughout nature and technology and involve components from the molecular to the planetary scale and many different kinds of interactions.