Surface Mediated Synthesis of 2D Covalent Organic Networks: 1, 3, 5‐Tris(4‐bromophenyl)benzene on Au(111). Issue 2 (18th October 2018)

• Record Type: Journal Article
• Authors: Doyle, Catherine M.; McGuinness, Cormac; Lawless, Anna P.; Preobrajenski, Alexei B.; Vinogradov, Nikolay A.; Cafolla, Attilio A.
• Other Names: Salvan Georgeta guestEditor.; Dzhagan Volodymyr guestEditor.; Vogt Patrick guestEditor.; Seyller Thomas guestEditor.
• Is Part Of: Physica status solidi. Volume 256:Issue 2(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-10-18
• Subjects: 1, 3, 5‐tris(4‐bromophenyl)benzene -- NEXAFS -- STM -- XAS -- XPS; Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201800349
• Languages: English
• ISSNs: 0370-1972

Abstract

Abstract : Covalent organic networks derived from surface‐mediated self‐assembly of 1, 3, 5‐tris(4‐bromophenyl)benzene into two‐dimensional networks on Au(111) have been studied by scanning tunneling microscopy (STM) and by X‐ray spectroscopic methods. High resolution soft X‐ray photoemission spectroscopy (SXPS) using synchrotron radiation have been used to study the formation of the 1, 3, 5‐tris(4‐bromophenyl)benzene‐derived 2D networks by observing temperature‐dependent C 1s and Br 3d core level XPS spectra. X‐ray absorption (XA) measurements of the formation of these 2D networks have been obtained at the C K‐edge where their temperature and angular dependence are examined. The results of these XPS and XA spectroscopic measurements are compared to detailed ab initio electronic structure calculations of 1, 3, 5‐tris(4‐bromophenyl)benzene molecules to aid the interpretation of the features of these spectra. Abstract : A temperature‐dependent study via scanning tunneling microscopy (STM), via core level Br 3d and C 1s soft X‐ray photoemission spectroscopy (sXPS), and via C K‐edge X‐ray absorption (XA) during 2D covalent organic network formation is presented, combined with theoretical C 1s binding energy calculations and C K‐edge XA simulations and an interpretation of the temperature and angular dependence.