On-surface stereoconvergent synthesis, dimerization and hybridization of organocopper complexes

• 来源期刊: 中国科学:化学（英文版）
• 年，卷（期）: 2019,（1）
• 页码范围: 126-132
• 页数: 7页
• 语种: 英文

摘要

Despite the vital role of stereoeonvergent synthesis in modem chemistry,the on-surface stereoconvergent synthesis of organometallic complexes involving transformation among several stereoisomers to one specific form has been few reported.By combination of high-resolution scanning tunneling microscopy (STM) imaging/manipulation and density functional theory (DFT) calculations,we have displayed the stereoconvergent synthesis of organocopper complexes via the Cu-alkene interaction and further dimerization into H-shaped motifs,in which two cis-forms and one trans-form are involved,and the specific adsorption configuration of one cis-form is revealed to be the key for such a synthesis.Furthermore,the generality of the dimerization of organocopper complexes has also been verified by codeposition of two similar molecular precursors,and the hybridized K-shaped motifs (made up of two kinds oforganocopper complexes) have been successfully achieved.These findings may provide atomic-scale insights into the synthesis of specific stereoisomers in the fields of pharmaceuticals,biochemistry and organometallic chemistry.