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Investigation of [N-X-N]+ and [N-C-N]+ complexes in solution


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Title: Investigation of [N-X-N]+ and [N-C-N]+ complexes in solution
Other Titles: Exploring Geometry, Stability and Symmetry
Authors: Karim, Alavi
E-mail: karim.alavi@chem.gu.se
Issue Date: 2-Nov-2017
University: University of Gothenburg. Faculty of Science
Institution: Department of Chemistry and Molecular Biology ; Institutionen för kemi och molekylärbiologi
Parts of work: Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Jürgen Gräfenstein and Máté Erdélyi. The nature of [NClN]+ and [NFN]+ halogen bonds in solution. Chem. Sci., 2014,5, 3226-3233.
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Alavi Karim, Nils Schulz, Hanna Andersson, Bijan Nekouesihahraki, Arto Valkonen, Kari Rissanen, Jürgen Gräfenstein, Sandro Keller, Máté Erdélyi. Pentavalent Carbonium Ion in Solution

Michele Bedin, Alavi Karim, Marcus Reitti, Anna-Carin C. Carlsson, Filip Topic, Mario Cetina, Fangfang Pan, Vaclav Havel, Fatima Al-Ameri, Vladimir Sindelar, Kari Rissanen, Jürgen Gräfenstein and Máté Erdélyi. Counterion influence on the NIN halogen bond. Chem. Sci., 2015, 6, 3746-3756.
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Date of Defence: 2017-11-24
Disputation: Frdiay November 24, 13:15, KC
Degree: Doctor of Philosophy
Publication type: Doctoral thesis
Keywords: three center four electron
halonium
carbenium
carbonium
pentavalent
symmetry
NMR
variable temperature
counterion
isotopic perturbation of equilibrium
Abstract: Halogen bonding is a weak interaction. In this thesis the three center four electron halogen bond, [N−X−N]+, has been studied. The lighter halogens form highly unstable halonium ions that are reactive towards nucleophiles and their complexes were therefore investigated at low temperatures. Whereas the chlorine-centered halogen bond was found to be symmetric, the fluorine-centered one is shown to be asymmetric in solution. These geometries have been determined by NMR spectroscopic evidences and c... more
ISBN: 978-91-629-0335-0 (PDF)
978-91-629-0334-3 (Print)
URI: http://hdl.handle.net/2077/52372
Appears in Collections:Doctoral Theses from University of Gothenburg / Doktorsavhandlingar från Göteborgs universitet
Doctoral Theses / Doktorsavhandlingar Institutionen för biologi och miljövetenskap

 

 

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