Guanine- and potassium-based two-dimensional coordination network self-assembled on Au(111).
In this study, through the choice of the well-known G-K biological coordination system, bioligand-alkali metal coordination has for the first time been brought onto an inert Au(111) surface. Using the interplay between high-resolution scanning tunneling microscopy and density functional theory calculations, we show that the mobile G molecules on Au(111) can effectively coordinate with the K atoms, resulting in a metallosupramolecular porous network that is stabilized by a delicate balance between hydrogen bonding and metal-organic coordination.
Interdisciplinary Nanoscience Center (iNANO), Center for DNA Nanotechnology (CDNA), and Department of Physics and Astronomy, University of Aarhus, Ny Munkegade, DK 8000 Aarhus C, Denmark. xuwei@tongji.edu.cn
Wei
W
Xu
Jian-guo
JG
Wang
Miao
M
Yu
Erik
E
Laegsgaard
Ivan
I
Stensgaard
Trolle R
TR
Linderoth
Bjørk
B
Hammer
Chen
C
Wang
Flemming
F
Besenbacher
D006046:Gold / Q000737:chemistry*; D006147:Guanine / Q000737:chemistry*; D008024:Ligands; D016252:Microscopy, Scanning Tunneling; D016062:Porosity; D011188:Potassium / Q000737:chemistry*; D013499:Surface Properties
D008024:Ligands; D006147:Guanine; D006046:Gold; D011188:Potassium