Search

Your search keyword '"Schubiger, P. August"' showing total 2 results
Start Over Author "Schubiger, P. August" Journal inorganic chemistry
2 results on '"Schubiger, P. August"'

1. Structural and 99Tc NMR investigations of complexes with fac-[Tc(CO)3+ moieties and macrocyclic thioethers of various ring sizes: synthesis and x-ray structure of the complexes fac-[Tc(9-ane-S3)(CO)3]Br, fac-[Tc2(tosylate)2(18-ane-S6)(CO)6], and fac-[Tc2(20-ane-S6-OH)(CO)6][tosylate]2

Author

Schibli, Roger, Alberto, Roger, Abram, Ulrich, Abram, Sonja, Egli, Andre, Schubiger, P. August, and Kaden, Thomas A.

Subjects
Ethers -- Research, Ligands (Biochemistry) -- Research, Complex compounds -- Research, Chemistry
Abstract

Three thioether complexes, fac-[Tc(9-ane-S3)(CO)3]Br (2), fac-[Tc2(tosylate)2(18-ane-S6)(CO)6] (3) and fac-[Tc2(20-ane-S6-OH)(CO)6]- [tosylate]2 (5) were isolated and characterized spectroscopically by nuclear magnetic resonance and x-ray diffraction methods. Complexes 3 and 5 illustrated the tendency of macrocyclic thioethers to bridge metal centers and show the rich coordination chemistry of the large macrocyclic rings. The high stability of the 2,3 and 5 complexes on the macroscopic level may serve as starting points for in vitro and in vivo studies with ligands.

Published
1998

2. Silver(I) complexes of the derivatized crown thioether ligands 3,6,9,12,15,18-hexathianonadecanol and 3,6,9,13,16,19-hexathiaicosanol. Determination of stability constants and the crystal structures of (Ag(19-aneS6-OH))(CF3SO3) and (Ag(20-aneS6-OH))(BF4)

Author

Alberto, Roger, Nef, Walter, Smith, Alan, Kaden, Thomas A., Neuburger, Markus, Zehnder, Margareta, Frey, Alfred, Abram, Ulrich, and Schubiger, P. August

Subjects
Silver compounds -- Research, Crown ethers -- Analysis, Molecular structure -- Analysis, Ring formation (Chemistry) -- Usage, Chemistry
Abstract

The derivatized crown thioethers 3,6,9,12,15,18-hexathianonadecanol (19-aneS6-OH) and 3,6,9,13,16,19-hexathiacycloicosanol (20-aneS6-OH) are prepared by (1 + 1) cyclization and used as ligands for synthesizing silver(I) complexes. The silver complex cations (Ag(19-aneS6-OH))+ and (Ag(20-aneS6-OH))+ reside in a distorted tetrahedral coordination geometry. The complex cations have identical solution structures but different solid structures. Stability constants for the silver complexes in methanol are estimated.

Published
1996

Catalog

Books, media, physical & digital resources
See catalog results