Universität Bonn

Molecular Physical Chemistry

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Molecular Physical Chemistry

Chemical reactions involve the rearrangements of atoms, the breaking of bonds and the formation of new ones. In particular, femtosecond nonlinear spectroscopy is used to exploit the time-dependent molecular-optical properties of chemical transformations.

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Catalysis scheme developed at the University of Bonn is inexpensive, sustainable, and effective

A novel catalysis scheme enables chemical reactions that were previously virtually impossible. The method developed at the University of Bonn is also environmentally friendly and does not require rare and precious metals. The researchers recorded the exact course of the catalysis in a kind of high-speed film. They did this using special lasers that can make processes visible that last only fractions of a billionth of a second. The results allow them to further optimize the catalyst. They have been published in the international edition of the renowned journal “Angewandte Chemie.”

Photoinduced Metallonitrene Formation by N2 Elimination from Azide Diradical Ligands

Femtosecond ultraviolet-pump/mid-infrared-probe spectroscopy reveals that singlet and triplet azide-anion diradical ligands facilitate the efficient formation of a metallonitrene from a diamagnetic azido precursor.

Photolysis of an Archetypal Model Complex. Photooxidation Versus Photoreduction of Azido(porphinato)iron(III)

Photolysis: The yield and product distribution of the photolysis of the archetypal azidoporphinatoiron(III) complex are examined by stationary and transient IR spectroscopy in conjunction with chemical quenching reactions with iodide and an isonitrile. The complex decomposes almost equally to the Fe(II) and the nitrido-Fe(V) product, with small absolute yields. Moreover, subsequent bimolecular reactions of the products are considered.

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Physical Chemistry

Information flyer of the "Deutsche Bunsengesellschaft für Physikalische Chemie"


Avatar Vöhringer

Prof. Dr. Peter Vöhringer

rer. nat.

+49 228 73-7050

+49 228 73-7049


Wegelerstr. 12

53115 Bonn

+49 228 73-7050

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