This is a lecture delivered by Professor Duncan Bruce (University of York), the 2014 winner of the RSC's Peter Day Award (http://www.rsc.org/ScienceAndTechnology/Awards/PeterDayAward/Index.asp)
The Peter Day Award is for outstanding contributions to, and advancement of, the field of Materials Chemistry. Professor Bruce was awarded the 2014 award for his numerous pioneering contributions in soft materials, including transition metal based liquid crystals, ionic liquid crystals, materials applications of halogen bonding, and mesoscopic luminescent materials.
The title of the lecture is "Liquid Crystals: From Non-covalent Assembly through Bright Lights to Catalysis".
Abstract:
In order to self-organise into liquid crystal mesophases, molecules need a degree of structural anisotropy, which in turn leads to anisotropic dispersion forces between molecules: these are sufficiently strong to stabilise this fourth state of matter. Conventionally, the structural anisotropy is built in through covalent synthesis, but the possibility exists to realise anisotropic moieties via self-assembly of smaller units using non-covalent interactions. Two such interactions are hydrogen and halogen bonding, and the first part of the seminar will describe new liquid crystals mediated by these interactions as well as looking at some aspects of crystal engineering that arose from the studies.
The second part of the talk will begin by looking at studies of emissive liquid-crystralline metal complexes (metallomesogens) of platinum(II) and iridium(III) with potential as OLED materials. The talk will conclude by showing how a serendipitous observation during this work led to identification of an unusual oxidation of platinum(II) to platinum(III) and ultimately to catalytic decarbonylation of unactivated ketones.
Biographical details can be found at:
http://www.york.ac.uk/chemistry/staff/academic/a-c/dbruce/
The lecture will take place between 3 and 4pm on 27th May 2015.
The Peter Day Award is for outstanding contributions to, and advancement of, the field of Materials Chemistry. Professor Bruce was awarded the 2014 award for his numerous pioneering contributions in soft materials, including transition metal based liquid crystals, ionic liquid crystals, materials applications of halogen bonding, and mesoscopic luminescent materials.
The title of the lecture is "Liquid Crystals: From Non-covalent Assembly through Bright Lights to Catalysis".
Abstract:
In order to self-organise into liquid crystal mesophases, molecules need a degree of structural anisotropy, which in turn leads to anisotropic dispersion forces between molecules: these are sufficiently strong to stabilise this fourth state of matter. Conventionally, the structural anisotropy is built in through covalent synthesis, but the possibility exists to realise anisotropic moieties via self-assembly of smaller units using non-covalent interactions. Two such interactions are hydrogen and halogen bonding, and the first part of the seminar will describe new liquid crystals mediated by these interactions as well as looking at some aspects of crystal engineering that arose from the studies.
The second part of the talk will begin by looking at studies of emissive liquid-crystralline metal complexes (metallomesogens) of platinum(II) and iridium(III) with potential as OLED materials. The talk will conclude by showing how a serendipitous observation during this work led to identification of an unusual oxidation of platinum(II) to platinum(III) and ultimately to catalytic decarbonylation of unactivated ketones.
Biographical details can be found at:
http://www.york.ac.uk/chemistry/staff/academic/a-c/dbruce/
The lecture will take place between 3 and 4pm on 27th May 2015.
