External electric fields (EEFs) have proven to be very efficient in catalysing chemical reactions, even those inaccessible via wet-chemical synthesis. At the single-molecule level, oriented EEFs been successfully used promote situ reactions absence of catalysts. Here, we elucidate effect an on structure and conductance a molecular junction. Employing scanning tunnelling microscopy break junctio...

A fluxional bis-monodentate ligand, based on the archetypal shape-shifting molecule bullvalene, self-assembles with M2+ (M=Pd2+ or Pt2+) to produce a highly complex ensemble of permanently coordination cages. Metal-mediated self-assembly selects for an M2L4 architecture while maintaining ligand complexity. second level simplification is achieved guest-exchange; binding halides within cage mixtu...

Photochemistry is used in polymer science to manipulate the physical properties of soft materials exogenously. Light unique its ability act as a non-invasive trigger induce bond cleavage, isomerisation, or rearrangement reactions within photoresponsive polymers and thus alter their physical, chemical mechanical spatiotemporal manner. However, while many organic are known, they frequently respon...

This review focuses on how short X-ray pulses from synchrotrons and XFELs can be used to track light-induced structural changes in molecular complexes proteins via the pump–probe method. The upgrade of European Synchrotron Radiation Facility a diffraction-limited storage ring, based seven-bend achromat lattice, it might boost future experiments are described. We discuss some first achieve 100 p...

A [FeFe]-hydrogenase model compound (µ-S(CH(2))(3)S)Fe(2)(CO)(4)(PMe(3))(2) [1] has been encapsulated in a low molecular weight (LMW) hydrogelator (Fmoc-Leu-Leu). Linear infrared absorption spectroscopy, gel melting and ultrafast time-resolved infrared spectroscopy experiments reveal significant contrasts in chemical environment and photochemistry between the encapsulated molecules and solution...

The complexes RuCl(2)(PCy(3))(2)(=CHPh), 1, and RuCl(2)(PCy(3))(H(2)IMes)(=CHPh), 2, proved to be active catalysts for the self-metathesis of oleate-type fatty compounds containing the ester, hydroxyl, epoxy and carboxylic acid functional groups. At elevated reaction temperatures 2 showed a higher activity, stability and lower selectivity for primary metathesis products compared to 1. A profoun...

Succinyl derivatives of adenosine are synthesized by direct reaction with succinic anhydride catalyzed by 4-morpholine N,N'-dicyclohexylcarboxamidine under kinetic or thermodynamic conditions and partial hydrolysis. Derivatives obtained were N6-succinyl adenosine, N6,5'-0-disuccinyl adenosine, 3'(2')-0-succinyl adenosine, N6,3'(2')-0-disuccinyl adenosine and 3'(2'),5'-0-disuccinyl adenosine. Th...

The optical switching of coupled plasmons of silver nanoparticles derivatised with a photoisomerisable azobenzene ligand is presented. It is shown that nanoparticle clusters, linked with an azobenzene dithiol molecule, display switchable optical properties. The photoisomerisation of the linker molecule was used to vary the separation between nanoparticles, which was monitored by changes in the ...

Chemoselectivities of five experimentally realised CpRuCl(PPh3 )2 /MeI-catalysed couplings of 7-azabenzo-norbornadienes with selected alkynes were successfully resolved from multiple reaction pathway models. Density functional theory calculations showed the following mechanistic succession to be energetically plausible: (1) CpRuI catalyst activation; (2) formation of crucial metallacyclopentene...