Tung grupp 14 kemi och aromaticitet i elektroniskt exciterade tillstånd för molekylär elektronik och organisk syntes

Tidsperiod: 2012-01-01 till 2015-12-31

Projektledare: Henrik Ottosson

Finansiär: Vetenskapsrådet

Bidragstyp: Projektbidrag

Budget: 3 400 000 SEK

Three projects are proposed; two fall within molecular/organic electronics, two concern conjugation and aromaticity, and two are based on heavy Group 14 element compounds. Molecular electronic structure is at the core, and each project includes quantum chemical calculations, synthesis and further experimental studies. The first project concerns design of Si/Ge/Sn-based compounds that display novel conjugation topologies and which are complementary to the pi-conjugated molecular electronics components of others. Use of non-standard conjugations will be beneficial in the design of, e.g., molecular "electrical cords". Here, we will also improve our metal-molecule-metal junction used for charge transport measurements. The project involves the U3MEC network coordinated by the applicant. The next project deals with excited state aromaticity, a forgotten form of aromaticity that can have major impact on future rationalizations of photophysical/chemical observations. We will design (oligo/poly)fulvenes for organic electronics and spintronics. The third project concerns Si=C bonded compounds (silenes) and aims to develop their chemistry for selective synthesis. Focus is given to species with reversed Si=C bond polarity, but also to new "supernaturally" polarized silenes. Our studies are fundamental and applications will be explored together with researchers at Durham University, UK.