Bornadiene-energieopslag

Does naphthyl norbornadiene have favorable properties for chemical energy storage?

It was observed that these compounds have favorable properties for chemical energy storage. Specifically, 2- (1-naphthyl)norbornadiene showed a pronounced red shift of the absorption, a long half-life (35 d) and a relatively high energy storage density (361 KJ/Kg) of the respective quadricyclane.

What are the absorption spectra of norbornadienes 1 F – L?

The absorption spectra of the norbornadienes 1 f – l were recorded in different solvents (Table 1, cf. Supporting Information Figure S1). 20 For each compound, the absorption properties were essentially the same in acetonitrile, ethanol, chloroform, n -hexane, ethyl acetate and toluene.

How to induce photoisomerization of norbornadienes?

To induce the photoisomerization of the norbornadienes 1 f – l to the corresponding quadricyclanes 3 f – l, the substrates were irradiated in acetonitrile solution (20 μM) according to their absorption profile at 315 nm ( 1 f, 1 g, 1 i, 1 j) or at 365 nm ( 1 h, 1 k, 1 l) (Scheme 3 ).