Self-Accommodating Honeycomb Networks from Supramolecular Self-Assembly of s-Indacene-tetrone on Silver Surfaces

Abstract

We describe the self-assembly of s-indacene-tetrone on the Ag(111), Ag(100) and Ag(110) surfaces and the formation of three hydrogen-bonded supramolecular phases representing complex selfaccommodating honeycomb network. The differences in terms of relative host-guest stability and molecular density are analyzed and discussed. Different epitaxial behaviors of the 2D self-assembly are found as a response to the variations in the crystallographic orientation of the surface.

Self-assembly of s-indacene-tetrone on Cu(111): molecular trapping and patterning of Cu adatoms

“…Similarly to the case of INDO 4 deposited on Ag surfaces, 27,[34][35][36] it is possible to form a large range of supramolecular networks upon adsorption of these molecules on Cu(111). Depending on the annealing temperature, we could identify six different phases, as reported in Table 1.…”

“…[14][15][16] A wide range of different patterns, among the 17 wallpaper groups, 17 can be achieved by adequate control on the design of the organic precursor and on the growth conditions, 18 as revealed at the single molecule level by scanning probe microscopy. [1][2][3][4][5] When supramolecular open networks are created on a surface, the 2D nanoporosity 5,19,20 can lead to particular confinement effects 21,22 such as the formation of quantum dots, 23 hostguest molecular complexes, [24][25][26][27] or adatom trapping. [28][29][30][31] In this article we show the formation of a variety of supramolecular networks based on hydrogen bonding or metal-organic complexation and exhibiting remarkable properties of molecular and adatom trapping.…”

“…1a) 32,33 on various silver surfaces. 27,[34][35][36] This compound is formed of a small indacene backbone surrounded by four oxygen atoms with D 2h symmetry and presents a remarkable ability to establish various intermolecular inplane hydrogen bonds. 37 A variety of ordered phases can be obtained upon deposition of INDO 4 on silver surfaces, depending on the crystallographic orientation of the surface and on the growth conditions.…”

“…37 A variety of ordered phases can be obtained upon deposition of INDO 4 on silver surfaces, depending on the crystallographic orientation of the surface and on the growth conditions. 27,[34][35][36] Motivated by the exceptional versatility of this precursor, we wanted to investigate its potential for creating metal-organic frameworks. The Cu(111) surface was chosen because it exhibits a large density of diffusing adatoms at room temperature and it represents a model substrate for creating coordination networks.…”

On-surface homocoupling reactivity of a chiral bifunctional bromoindanone molecule on Cu(111)

“…with s-indacene-1,3,5,7-(2H,6H)-tetrone (INDO 4 ). 25,26 This latter molecule is a symmetrical precursor with several O and H peripheral atoms which make it a highly versatile structure in terms of self-assembly 27,28 and reactivity. 24,29 However, the repartition of the 4 O atoms in D 2h high symmetry allows a variety of different coupling configurations, which can be a source of disorder precluding the formation of extended 2D covalent networks.…”