TY  - THES
A1  - Kerpen, Christoph
T1  - – CYANOBORATE – Salze reaktiver Kationen sowie Übergangsmetallverbindungen
T1  - – CYANOBORATES – Salts of reactive cations and transition metal compounds
N2  - Die hier vorliegende Arbeit behandelt die Synthese und Charakterisierung neuer Übergangsmetall-Borate sowie auf Cyanoborat-Anionen basierende Übergangsmetallkomplexe und Koordinationsverbindungen mit N-Donor-Liganden und Triphenylphosphan.
N2  - This work outlines the synthesis and characterization of novel transition metal borates as well as transition metal complexes based on cyanoborate anions and coordination compounds with N-donor ligands and triphenylphosphine.
KW  - borate
KW  - Transition metal
KW  - Cyanoborate
KW  - Übergangsmetallverbindungen
KW  - Cyclovoltammetrie
KW  - Phosphankomplexe
KW  - Koordinationspolymere
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-163974
ER  - 
TY  - JOUR
A1  - Häring, Mathias
A1  - Kerpen, Christoph
A1  - Ribbeck, Tatjana
A1  - Hennig, Philipp T.
A1  - Bertermann, Rüdiger
A1  - Ignat’ev, Nikolai V.
A1  - Finze, Maik
T1  - Dismutation of Tricyanoboryllead Compounds: The Homoleptic Tetrakis(tricyanoboryl)plumbate Tetraanion
JF  - Angewandte Chemie
N2  - A series of unprecedently air-stable (tricyanoboryl)plumbate anions was obtained by the reaction of the boron-centered nucleophile B(CN)\(_{3}\)\(^{2-}\) with triorganyllead halides. Salts of the anions [R\(_{3}\)PbB(CN)\(_{3}\)]\(^{-}\) (R=Ph, Et) were isolated and found to be stable in air at room temperature. In the case of Me\(_{3}\)PbHal (Hal=Cl, Br), a mixture of the anions [Me\(_{4-n}\)Pb{B(CN)\(_{3}\)}\(_{n}\)]\(^{n-}\) (n=1, 2) was obtained. The [Et\(_{3}\)PbB(CN)\(_{3}\)]− ion undergoes stepwise dismutation in aqueous solution to yield the plumbate anions [Et4\(_{4-n}\)Pb{B(CN)\(_{3}\)}\(_{n}\)]\(^{n-}\) (n=1–4) and PbEt\(_{4}\) as by-product. The reaction rate increases with decreasing pH value of the aqueous solution or by bubbling O\(_{2}\) through the reaction mixture. Adjustment of the conditions allowed the selective formation and isolation of salts of all anions of the series [Et\(_{4-n}\)Pb{B(CN)\(_{3}\)}\(_{n}\)]\(^{n-}\) (n=2–4) including the homoleptic tetraanion [Pb{B(CN)\(_{3}\)}\(_{4}\)]\(^{4-}\).
KW  - anions
KW  - boron
KW  - cyanoborates
KW  - dismutations
KW  - lead
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-318257
VL  - 61
IS  - 24
ER  - 
TY  - JOUR
A1  - Schneider, Leon N.
A1  - Tanzer Krauel, Eva-Maria
A1  - Deutsch, Carl
A1  - Urbahns, Klaus
A1  - Bischof, Tobias
A1  - Maibom, Kristina A. M.
A1  - Landmann, Johannes
A1  - Keppner, Fabian
A1  - Kerpen, Christoph
A1  - Hailmann, Michael
A1  - Zapf, Ludwig
A1  - Knuplez, Tanja
A1  - Bertermann, Rüdiger
A1  - Ignat'ev, Nikolai V.
A1  - Finze, Maik
T1  - Stable and Storable N(CF\(_{3}\))\(_{2}\) Transfer Reagents
JF  - Chemistry—A European Journal
N2  - Fluorinated groups are essential for drug design, agrochemicals, and materials science. The bis(trifluoromethyl)amino group is an example of a stable group that has a high potential. While the number of molecules containing perfluoroalkyl, perfluoroalkoxy, and other fluorinated groups is steadily increasing, examples with the N(CF\(_{3}\))\(_{2}\) group are rare. One reason is that transfer reagents are scarce and metal-based storable reagents are unknown. Herein, a set of Cu\(^{I}\) and Ag\(^{I}\) bis(trifluoromethyl)amido complexes stabilized by N- and P-donor ligands with unprecedented stability are presented. The complexes are stable solids that can even be manipulated in air for a short time. They are bis(trifluoromethyl)amination reagents as shown by nucleophilic substitution and Sandmeyer reactions. In addition to a series of benzylbis(trifluoromethyl)amines, 2-bis(trifluoromethyl)amino acetate was obtained, which, upon hydrolysis, gives the fluorinated amino acid N,N-bis(trifluoromethyl)glycine.
KW  - silver
KW  - amination
KW  - copper
KW  - fluorinated ligands
KW  - N ligands
Y1  - 2021
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-256890
VL  - 27
IS  - 42
ER  -