PhysChem Webinar Series -1

PhysChem Webinar Series -1
Speakers: Dr Christopher Hansen, ARC DECRA Fellow, UNSW and Dr Katie Wilson, ANU

Physical Chemistry Division present 

PhysChem Webinar Series -1

1 July 2020 1-2pm AEST


Dr Christopher Hansen, ARC DECRA Fellow, UNSW - The true impact of fluorinated compounds in the atmosphere 
Jyoti S. Campbell, Scott H. Kable, Christopher S. Hansen* School of Chemistry, University of New South Wales, Sydney NSW 2052, Australia 

This talk will present recent results using a combination of velocity-mapped ion imaging (VMI), Fourier-transform infrared (FT-IR) spectroscopy and computational chemistry to provide detailed insight into the ultimate fate of next-generation refrigerants once they are emitted into the atmosphere. Particularly it will focus on one hydrofluoroolefin (HFO), HFO-1234ze or 1,3,3,3- tetrafluoropropene (CHF=CH-CF3), and the photochemistry of its known decomposition product (trifluoroacetaldehyde, CF3CHO). The hydrofluoroolefins are intended as ‘zero global warming potential (GWP)’ replacements for the hydrofluorocarbons (HFCs). However, these results demonstrate significant photochemical pathways leading to the formation of the most environmentally hazardous HFC, which is fluoroform (CHF3) with a global warming potential ~13 000 times worse than CO2 (by mass). These results re-evaluate the ‘effective’ GWPs of the ‘zero GWP’ refrigerants and can help account for an unidentified, increasing source of CHF3 in the atmosphere. 

Dr Katie Wilson, ANU - Targeting the molecular motions of the BºAT1/ACE2/S1 complex for rational drug design
Katie Wilson and Megan O'Mara

The novel coronavirus SARS-CoV-2 is the causative agent of COVID-19 and has infected over 8 million people worldwide. SARS-CoV-2 gains entry to human cells in the respiratory and digestive tract by the coronavirus surface spike protein binding to the human receptor, ACE2. Frontline therapies that counteract the devastating effects of COVID-19 must prevent the entry of the coronavirus into human cells. Molecular dynamics simulations of the coronavirus surface spike protein bound to the human receptor complex provide information about the accessibility, stability and overall conformational dynamics of the SARS-CoV-2 receptor complex. This information is being used for rational drug design that aims to prevent SARS-CoV-2 from entering human cells. 

Free for RACI and reciprocal society members - (Reciprocal society members - Contact for further details) 
$10 for Non-Members

If you are not a RACI but would like to join (from $25 for student members), please click here for more information.

How to Connect

The Zoom link will be emailed to you closer to the event date. 

For further information, please contact Event Organiser Laura McKemmish  

If you are not an RACI Member, you will need to create an account below to register.

7/1/2020 1:00 PM - 2:00 PM
AUS Eastern Standard Time
Zoom Conferencing AUSTRALIA


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