TY  - JOUR
A1  - Margraf, Günter
A1  - Schödel, Frauke
A1  - Sänger, Inge
A1  - Bolte, Michael
A1  - Wagner, Matthias
A1  - Lerner, Hans-Wolfram
T1  - Eine elektrochemische und strukturelle Studie an den Eisensilylamiden Fe[N(SiMe3)2]2 und Fe[N(SiMe3)2]3
T1  - An electrochemical and structural study of the iron silylamides Fe[N(SiMe3)2]2 and Fe[N(SiMe3)2]3
T2  - Zeitschrift für Naturforschung, B
N2  - The bis(trimethyl)silylamido complex Na(THF){Fe[N(SiMe3)2]3} and the disilane tBu3SiSitBu3 were obtained from the reaction of Fe[N(SiMe3)2]3 with the sodium silanide Na(THF)2[SitBu3] in a mixture of benzene and THF. Single crystals of Na(THF){Fe[N(SiMe3)2]3} suitable for X-ray diffraction were grown from the reaction solution at ambient temperature (orthorhombic, C2221, Z = 4). The solid-state structure features a contact-ion pair with two short N-Na contacts. The THF adducts {M(THF)2[N(SiMe3)2]2} reacted with 2,2´-bipyridine to give the corresponding complexes {M(2,2´bipy)[N(SiMe3)2]2} (M= Mn; Fe). Their structures (M= Fe: orthorhombic, Pca21, Z = 8; M = Mn: orthorhombic, Pbca, Z = 8) feature monomeric units. The cyclic voltammogram of Fe[N(SiMe3)2]3 revealed a reversible redox transition with the potential of -0;523 V (E½), which was assigned to the Fe(III)[N(SiMe3)2]3 → Fe(II)[N(SiMe3)2]-3 redox transition, whereas the compounds {Fe(THF)2[N(SiMe3)2]2} (Eox = -0;379 V) and {Fe(2,2´bipy)[N(SiMe3)2]2} (Eox = -0;436 V) featured irreversible oxidation waves. The related manganese bis(trimethylsilyl)amido complexes {Mn(THF)2[N(SiMe3)2]2} (Eox = -0;458 V) and {Mn(2,2´bipy)[N(SiMe3)2]2} (Eox = -0513 V) also underwent irreversibile electron transfer processes.
KW  - Silylamide
KW  - Iron
KW  - Manganese
KW  - Cyclic Voltammetry
KW  - X-Ray Structure Analysis
Y1  - 2014
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/79977
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-799773
SN  - 1865-7117
SN  - 0932-0776
VL  - 67.2012
IS  - 6
SP  - 549
EP  - 566
PB  - Verlag der Zeitschrift für Naturforschung
CY  - Tübingen
ER  -