Understanding the formation of the long range chiral network of 2-butanol

The assembly of complex structures in nature is driven by an interplay between several intermolecular interactions, from strong covalent bonds to weaker dispersion forces. Scientists from Tufts University USA, University College London UK, and CIC Energigune Spain worked in collaboration to understand microscopically the role non-covalent interactions play in the adsorption and assembly of 2-butanol on the (111) surface of gold. 2-butanol has recently been shown to have interesting properties as a chiral modifier of surface chemistry.

Using high-resolution scanning tunneling microscopy (STM), they found that the chiral molecules acquire a second chiral center when adsorbed to the surface via dative bonding of one of the oxygen atom lone pairs. The evolution of these square units is surprising given that the underlying surface has a hexagonal symmetry.

High-resolution STM images of R-2-BuOH at 1 ML coverage on a Au(111) surface.

High-resolution STM images of R-2-BuOH at 1 ML coverage on a Au(111) surface. Three rotational domains were observed and are labeled rotations 1-3.

assembly of R-2-BuOH hydrogen-bonded tetramers

Schematic showing the assembly of R-2-BuOH hydrogen-bonded tetramers to form square chiral units is superimposed over the STM image.

DFT calculations reveal that the tetramers are stable entities that are able to associate with each other by weaker van der Waals interactions and tessellate in an extended square network. This study provides the first microscopic insight into the surface properties of this important chiral modifier and provides a well-defined system for studying the network’s enantio-selective interaction with other molecules.

This article has been selected as a 2016 Editors’ Choice article.

News

trophy

Martin wins PhD prize!

Martin won the Marshall Stoneham prize for his PhD thesis on “Merging data-driven and computational methods to understand ice nucleation”. It is awarded by the Condensed Matter & Materials Physics Group (CMMP) for outstanding postgraduate research. Well done!

0 comments
Fabian_poster-prize_MMM-Hub-2019

Fabian wins Best Poster prize at the MMM Hub conference!

The second annual Materials & Molecular Modelling (MMM) Hub Conference and User Meeting took place on 3-4 September. Many excellent talks demonstrated how the computational resources provided by the MMM Hub are used to tackle challenges in many areas of biological, chemical, and physical research. This was also illustrated by more than 50 posters, spanning […]

0 comments
IMG-20190720-WA0002

Science and sports in York

Last weekend, the ICE group gathered in York for the International Materials Simulation Workshop. Current and former members as well as collaborators talked about their recent projects and discussed how to tackle society’s big challenges, utilize advancements in methodology and make the most of fruitful collaborations. The meeting highlighted the diverse range of problems that […]

0 comments
ice_triathlon

Triple Triathlon at Castle Howard in support of WaterAid

The ICE group will be participating in the Castle Triathlon series for the third year in a row. This time, three relays teams are going to compete at Castle Howard, near York, on 21 July. They will be swimming, cycling and running a combined distance of roughly 280 km! As part of the tradition, the […]

0 comments
ice_logo_5_rect

Open postdoc position (University of Manchester & ICE group)

A 2-year postdoc position is available in the Condensed Matter Physics group at the University of Manchester. The project will be carried out in collaboration with the ICE group and involves developing and applying theoretical models to understand the anomalous dielectric behaviour of water under confinement (Fumagalli et al. Science 360, 1339-1342, 2018). You can […]

0 comments
Angelos_London-Marathon

Angelos sets world record at the London Marathon!

Angelos set a new world record for the “fastest marathon dressed as a scientist (male)” at this year’s London Marathon, finishing in 3:22:51. Congratulations! He also managed to raise more than £3000 in support of WaterAid, an international charity working to provide clean water and decent toilets to people all over the world. Many thanks […]

0 comments
ice_logo_5_rect

Welcome Julia!

The ICE group has a new member: Julia will be working on C-H activation at single-atom alloy catalysts. The project involves collaboration with Michail Stamatakis from UCL’s Department of Chemical Engineering. We hope you will have a pleasant and productive time in the ICE group!

0 comments
ice-surface_NatureReviewsChemistry

Nature Reviews Chemistry on surface premelting of water ice published!

In a recently published Nature Reviews Chemistry article, titled “Surface premelting of water ice”, Ben Slater and Angelos review the current understanding of the quasi-liquid layer (QLL) that forms on the surface of ice. The review describes how advances in experimental and computational techniques furthered our understanding in the years since Faraday first postulated the […]

0 comments
angelos_world-record

Angelos is trying to set a new world record!

Angelos will be running this year’s London Marathon with the aim of setting a new world record for the “fastest marathon dressed as a scientist (male)”. He is running in support of WaterAid, an international charity working to provide clean water and decent toilets to people all over the world. To find out more and […]

0 comments
trophy

Patrick wins Best Poster prize at the TYC Student Day!

For his contribution “A Machine Learning Potential for Carbon”, Patrick was awarded a Best Poster prize at this year’s TYC Student Day! He was one of the four winners chosen from more than 30 poster presentations, which highlighted the excellent research conducted within the Thomas Young Centre. Patrick had also won the Best Poster prize […]

0 comments

Group gatherings