Synthesis and characterization of a single-layer conjugated metal–organic structure featuring a non-trivial topological gap. Issue 3 (3rd January 2019)

• Record Type: Journal Article
• Authors: Gao, Zi'Ang; Hsu, Chia-Hsiu; Liu, Jing; Chuang, Feng-Chuan; Zhang, Ran; Xia, Bowen; Xu, Hu; Huang, Li; Jin, Qiao; Liu, Pei Nian; Lin, Nian
• Is Part Of: Nanoscale. Volume 11:Issue 3(2019)
• Page Start: 878
• Page End: 881
• Publication Date: 2019-01-03
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/c8nr08477g
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : A single layer of a two-dimensional conjugated network (Ni3 (HITP)2 ) assembled on a Au(111) surface exhibits a non-trivial topological gap. Abstract : We employ an on-surface assembly protocol to synthesize a single layer of a two-dimensional conjugated network (Ni3 (HITP)2 ) on a Au(111) surface. The electronic coupling between the π orbital of the diimine ligand and the d orbital of the metal ion renders efficient π-conjugation. Density-functional theory calculations provide evidence of a non-trivial topological gap in the surface-adsorbed single layer. This work demonstrates that single-layer 2D metal–organic frameworks adsorbed on surfaces are a new class of 2D materials that host quantum phases.