@article {C9PP00223E,
	title = {Synthesis, spectroscopy and QM/MM simulations of a biomimetic ultrafast light-driven molecular motor},
	journal = {Photochem. Photobiol. Sci.},
	volume = {18},
	year = {2019},
	pages = {2259-2269},
	publisher = {The Royal Society of Chemistry},
	abstract = {A molecular motor potentially performing a continuous unidirectional rotation is studied by a multidisciplinary approach including organic synthesis, transient spectroscopy and excited state trajectory calculations. A stereogenic center was introduced in the N-alkylated indanylidene{\textendash}pyrroline Schiff base framework of a previously investigated light-driven molecular switch in order to achieve the unidirectional CC rotary motion typical of Feringa{\textquoteright}s motor. Here we report that the specific substitution pattern of the designed chiral molecule must critically determine the unidirectional efficiency of the light-induced rotary motion. More specifically, we find that a stereogenic center containing a methyl group and a hydrogen atom as substituents does not create a differential steric effect large enough to fully direct the motion in either the clockwise or counterclockwise direction especially along the E {\textrightarrow} Z coordinate. However, due to the documented ultrafast character and electronic circular dichroism activity of the investigated system, we find that it provides the basis for development of a novel generation of rotary motors with a biomimetic framework and operating on a picosecond time scale.},
	doi = {10.1039/C9PP00223E},
	url = {http://dx.doi.org/10.1039/C9PP00223E},
	author = {Schapiro, Igor and Gueye, Moussa and Paolino, Marco and Fusi, Stefania and Marchand, Gabriel and Haacke, Stefan and Martin, M. Elena and Mark Huntress and Vysotskiy, Victor P. and Veryazov, Valera and L{\'e}onard, J{\'e}r{\'e}mie and Olivucci, Massimo}
}
