Naslov
Mechanically responsive molecular crystals

Autori
Đaković, Marijana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XLIX Annual Meeting AIC, Parma 2021, Programme and Book of Abstracts / - Parma, 2021, 15-15

Skup
49th Meeting of the Italian Crystallographic Association (AIC 2021)

Mjesto i datum
Parma, Italija, 06.09.2021. - 08.09.2021

Vrsta sudjelovanja
Plenarno

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
moleuclar crystals, crystal flexibilty, crystal engineering, elasticity, plasticity

Sažetak
The adaptability of crystalline solids to external stimuli has recently attracted widespread attention due to their great potential for application in emerging technologies [1]. Despite a number of crystalline responses to external stimuli like hear or UV radiation (viz. moving, jumping, splitting, flexing, twisting, curling, or exploding) that have already been widely reported, mechanically induced flexibility is still relatively rarely observed among molecular crystals and the rational behing those responses is not yet fully understood. Coordination polymers recently emerged as a promissing class of materials that, in addition to their unique and tunable properties (i.e. magnetic and electronic properties), proved to be ideal model systems for exploring structural prerequisites for delivery of a specific mechanical response. Moreover, they offered a range of not hiterto observed mechanical behaviours of crystalline materials as well as fine tunability of their responses to external mechanical stimuli. In the first report on mechanical flexibility of coordination polymers (CPs) we have shown that crystals of a family of Cd(II) polymers are capable of displaying not only exceptional elasticity but also a distinctly different extent of flexibile responses [2]. They can actually diversely tolerate exerted force and the diverse tolerability showed to be a result of slight differences in the importance of intermolecular interactions in crystal packing. Furthermore, a variability in plastic responses was also firstly obsered on crystals of CPs, and here as well the non-covalent bonds proved to be the driving force for delivering a desired mechanical output [3]. Several other modes of tunability of crystal adaptability to mechanical stimuli as well as unpresedented respones to exerted force will be presented in this talk together with a number of custom-made experiments and state-of-the-art techniques for quantification of crystal flexiblity [4, 5].

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA