Liu Q, Du S, Zhang Y, Jiang N, Shi D, Gao HJ. Identifying multiple configurations of complex molecules on metal surfaces.
SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2012;
8:796-795. [PMID:
22334582 DOI:
10.1002/smll.201101937]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Indexed: 05/31/2023]
Abstract
Experimental identification of molecular configurations in diffusion processes of large complex molecules has been a demanding topic in the field of molecular construction at solid surfaces. Such identification is needed in order to control the self-assembly process and the properties and configurations of the resulting structures. This paper provides an overview of state-of-the-art techniques for identification of molecular configurations in motion. First, a brief introduction to the conventional tools is presented, for example, low-energy electron diffraction and IR/Raman spectroscopy. Second, currently used techniques, scanning probe microscopy, and its application in molecular configuration identification are reviewed. In the last part, a methodology combining time-resolved tunneling spectroscopy and density functional theory calculation is reviewed in detail; this strategy has been successfully applied to two typical molecular systems, (t-Bu)₄ -ZnPc and FePc (where Pc is phthalocyanine), with molecular rotation and laterial diffusion on the Au(111) surface.
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