Single-Molecule Resolution of an Organometallic Intermediate in a Surface-Supported Ullmann Coupling Reaction

Citations Over TimeTop 10% of 2011 papers

Abstract

We have studied the organometallic intermediate of a surface-supported Ullmann coupling reaction from 4, 4″-dibromo-p-terphenyl to poly(para-phenylene) by scanning tunneling microscopy/spectroscopy and density functional theory calculations. Our study reveals at a single-molecular level that the intermediate consists of biradical terphenyl (ph)(3) units that are connected by single Cu atoms through C-Cu-C bridges. Upon further increasing the temperature, the neighboring biradical (ph)(3) units are coupled by C-C bonds forming poly(para-phenylene) oligomers while the Cu atoms are released.

Related Papers

• → Supported Catalysts Obtained by Interaction of Organometallic Compounds of Transition Elements with Oxide Supports(1976)226 cited
• Organometallic Chemistry: A Unified Approach(1991)
• → Analytical Applications of Vibrational Spectroscopy in Bioorganometallic Chemistry(1997)1 cited
• → What Are Organometallic Compounds?(2023)
• Functional materials, environmental and biological applications(2007)