How Do Molecular Motions Affect Structures and Properties at Molecule and Aggregate Levels?

01 June 2021, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Experimental and theoretical analysis demonstrated that the active intramolecular motions in the excited state of all molecules at single molecule level imparted them with more twisted structural conformations and weak emission. However, owing to the restriction of intramolecular motions in the nano/macro aggregate state, all the molecules assumed less twisted conformations with bright emission. Synergic strong and weak intermolecular interactions allowed their crystals to undergo reversible deformation, which effectively solved the problem of the brittles of organic crystals, meanwhile imparted them with excellent elastic performance.


aggregation induced emission
molecular motion
organic eleastic crystal
non-covalent interactions

Supplementary materials



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