How to make a porphyrin flip: dynamics of asymmetric porphyrin oligomers

How to make a porphyrin flip: dynamics of asymmetric porphyrin oligomers.

We present the first predictions of meso-aryl flipping pathways in porphyrin oligomers. In the context of cyclic oligoporphyrins this flipping results in a paddle rotation of each porphyrin monomer in the oligomeric ring. If the monomer porphyrin units are asymmetric, this flipping will have consequences for their supramolecular behaviour. Desymmetrisation of synthetic porphyrins leads to synth...

Porphyrin inhibition of glyoxalase 1

Spotlight: Porphyrin-based catalysts

< p>Mohammad Dashteh was born in 1994 in Dashteh/ Hamedan, Iran. Having graduated in the field of Pure Chemistry (2016) from Bu-Ali Sina University, Hamedan, Iran, he continued his M.Sc. in 2018 in Organic Chemistry under the supervision of Professor Mohammad Ali Zolfigol. He is currently working towards his Ph.D. under the supervision of Professor Mohammad Ali Zolfigol and Professor Ardeshir K...

Dynamics of excited-state conformational relaxation and electronic delocalization in conjugated porphyrin oligomers.

We have investigated the influence of nuclear geometric relaxation on the extent of the excited-state electronic delocalization in conjugated zinc porphyrin oligomers using ultrafast transient photoluminescence spectroscopy. By use of metal-coordinating templates that force the oligomers into specific geometries in solution we are able to distinguish clearly between relaxation effects arising f...

Porphyrin Metabolism

The suggestion of Duesberg (1) that prolonged ingestion of allylisopropylacetylcarbamide (Sedormid)’ may have induced acute porphyria in a human led later workers to produce this disorder in rabbits (2) and rats (3) by oral administration of the drug. Although this experimental procedure has facilitated the study of acute porphyria, the possibility remains that some of the porphyrin excreted in...