Multiphoton harvesting metal–organic frameworks
Usually multiphoton harvesting property exhibited by the organic molecules in the solution, is quenched in the solid state due to aggregation. However, efficiently luminescent materials in the solid-state form are highly preferable in many photonic applications such as upconversion lasing and light emission due to a higher resistant to photobleaching. By rational choice of ligands with high second hyperpolarizability, MOFs with large nonlinear optical response (up to direct absorption of four photons at 1500 nm) has been reported for the first time by Hong Sheng Quah, Weiqiang Chen, Martin K. Schreyer, Hui Yang, Ming Wah Wong, Wei Ji, and Jagadese J. Vittal in the recent issue of Nature Communications (Vol. 6, Article No. 7954, 2015, doi:10.1038/ncomms8954).
Singaporean Inorganic Chemistry Symposium 2015
The inaugural Singaporean Inorganic Chemistry Symposium (SICS2015) was held at University Town on the 29th of July, 2015. The symposium featured researchers from over thirteen inorganic based research groups from both the NUS Department of Chemistry and the NTU Division of Chemistry and Biological Chemistry in attendance. A wide range of inorganic research was showcased by eleven speakers, varying from medicinal chemistry to catalysis to fundamental main group chemistry. ‘Best Speaker’ awards were presented to Mr Kennard Gan (NTU), Ms Shi Xiaoyan (NTU) and Mr Kelvin Lim (NUS). The SICS2015 organising committee would like to thank the NUS Department of Chemistry for their support in organising this event. More photos.
Quacquarelli Symonds (QS) World University Rankings 2015
NUS Chemistry has been ranked 7th internationally and 1st in Asia in the latest Quacquarelli Symonds (QS) World University Rankings by Subject. Read More.
Energy-Based Molecular Fragmentation Methods
The review covers the state-of-the-art of energy-based molecular fragmentation methods of which both authors have made significant contributions. The defining characteristic of an energy-based molecular fragmentation method is that the molecule (also cluster of molecules, or liquid or solid) is broken up into a set of relatively small molecular fragments in such a way that the electronic energy of the full system is given by a simple linear combination of the energies of these fragment molecules. The successful application of the method enables accurate solution of the Schrodinger equation for molecules the size of proteins. Reported by Associate Professor Ryan P A BETTENS group.
Chem Rev 2015 (in press) http://pubs.acs.org/doi/abs/10.1021/cr500455b
“Temporal full-color tuning through non-steady-state upconversion”
Assoc Professor LIU Xiaogang group reported that producing luminescence materials with tunable emission colors that can be applied for high quality displays is a very difficult task. Especially, it is challenging to develop light-responsive materials that are possible to produce any desired colors in a broad spectrum range on demand through the use of a simple external stimulus. Now they have achieved this goal by exploiting a novel concept, non-steady-state upconversion, based on the design and synthesis of lanthanide-doped core-shell upconversion nanomaterials. The emission color of the core-shell upconversion nanocrystals was turned by adjusting the pulse width and intensity of near-infrared laser excitations. R. Deng, F. Qin, R. Chen, W. Huang, M. Hong, X. Liu, “Temporal full-color tuning through non-steady-state upconversion, ” Nature Nanotechnology, 2015, 10, 237-242. Read More.
The department of chemistry deeply mourns for the demise of our colleague Prof Koh Lip Lin on 12 Feb 2015.
Prof Loh Kian Ping (Head, Chemistry Department) received the Certificate of
Accreditation for our BSc curriculum from Royal Society of Chemistry.
Fundamental science won MOE Tier 3!
A research team led by Associate Professor Wu Jishan (co-PIs: Profs. Loh Kian Ping, Ding Jun, Andrew Wee, Chi Chunyan, Chen Xiaodong; collaborators: Profs. Christian A. Nijhuis, Klaus Müllen, Dongho Kim, Juan Casado, Neil C. Greenham, Kuo-Wei Huang) was funded 10 million S$ for 5 years for their proposed frontier research on synthetic organic spin chemistry, materials and devices.
Congratulations to Prof Loh Kian Ping for winning the Provost's Chair (Tenable for 3 years from July 2015). Prof Loh was awarded the 2014 President’s Science Award for his outstanding research on graphene chemistry. His research effort on advanced carbon materials is internationally acclaimed and has contributed to Singapore’s and NUS’ position as world leader in this research area.
The Department has just established a research collaboration with its counterpart at the King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, Saudi Arabia. Under the collaboration, six projects involving faculty members from both departments will receive funding of S$1.1 million over three years. From our department, Professors Lu Yixin, Richard Wong and Lee Hian Kee, and Associate Professors Chuah Gaik Khuan, Han Vinh Hyunh and Stephan Jaenicke will be involved in the collaboration with their colleagues from KFUPM on environmental analytical chemistry, catalysis, nanostructured materials and computational electrochemistry.
Professor WONG Ming Wah, Richard has joined the editorial board of Australian Journal of Chemistry as Associate Editor for 3 years.
Congratulate Mr Fung Fun Man for being the 1st Singaporean and 3rd Asian to be elected into the IChO (International Chemistry Olympiad) Steering Committee.
Congratulate Associate Professor Wu Jishan for being appointed as the Dean's Chair from 1st July 2014.
Congratulations to our graduate student Raghavender Medishetty for winning the Best Poster Presenter Award at the '6th-HOPE meeting with Nobel Laureates' March 11-15, 2014 in Tokyo, Japan.
Professor JJ Vittal has been invited to give a talk at the Gordon Research Conference on Crystal Engineering, June 1-6, 2014 at Waterville Valley, NH, USA. He was a discussion leader at the last GRC meeting in 2012 on the same topic.
Professor Lee Hian Kee has been placed in the technical trade journal The Analytical Scientist's (print circulation: 21,000; digital circulation: 58,000) "Power List: 100 Most Influential People in the Analytical Sciences"
NEWLY RENOVATED, FULLY AIR-CONDITIONED TEACHING LABORATORIES
Note: From 3rd July 2013, information relevant
only to current NUS students will be made
available in the Student Portal