Pseudocarbynes: Linear Carbon Chains Stabilized by Metal Clusters

Hyunsub Kim, Pilarisetty Tarakeshwar, Nancy M. Fujikado, Kelsea Evraets, Anne K. Jones, Moreno Meneghetti, Peter R. Buseck, Scott G. Sayres

Research output: Contribution to journalArticlepeer-review

Abstract

Pseudocarbynes, defined as linear carbon chains stabilized by noncovalent bonding to a metal cluster, were synthesized via laser ablation of a liquid/metal interface, in this case, gold (Au) in ethanol. We present UV-vis, Raman, and IR spectra that collectively demonstrate the formation of Au-pseudocarbynes. The Au-pseudocarbynes presented here likely consist of polyynes containing fewer than 16 carbon atoms associated with subnanometer Au clusters. Their characteristic spectral signatures are supported by density functional theory calculations that highlight the interaction between the Au clusters and the πnetwork of-CC-chains. This class of molecules represents a synergy between sp-hybridized carbon chains and small metal clusters that stabilize one another.

Original languageEnglish
Pages (from-to)19355-19361
Number of pages7
JournalJournal of Physical Chemistry C
Volume124
Issue number35
DOIs
Publication statusPublished - Sep 3 2020

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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