Synthesis and characterization of metal-centered, six-membered, mixed-valent, heterometallic wheels of iron, manganese, and indium.
Heptanuclear metal-centered, six-membered, mixed-valent, heterometallic wheels 1-3 of iron, manganese, and indium were prepared in a one-pot reaction from N-benzyldiethanolamine (H2L(1)), cesium carbonate, [PPh4]2[MnCl4], and FeCl3 or InCl3. All three complexes were characterized by the combination of elemental analysis, FAB mass spectroscopy, X-ray diffraction and cyclic voltammetry and in the case of 1 additionally by Mössbauer spectroscopy. In 1, four Mn(II) ions in the periphery are arranged in pairs alternating with one Fe(III) ion each, with an Fe(III) ion located in the center. In 2, three Mn(II) ions alternate with three In(III) ions, whereas in 3, four In(III) ions are arranged in pairs and alternate with one Mn(II) ion each. In 2 and 3 an Mn(II) ion is encapsulated in the center.
Saalfrank
Rolf W
RW
Institut für Organische Chemie der Universität Erlangen-Nürnberg, Henkestrasse 42, 91054 Erlangen, Germany. saalfrank@chemie.uni-erlangen.de
Prakash
Raju
R
Maid
Harald
H
Hampel
Frank
F
Heinemann
Frank W
FW
Trautwein
Alfred X
AX
Böttger
Lars H
LH
D001596:Benzylamines / Q000737:chemistry*; D007202:Indicators and Reagents; D007204:Indium / Q000737:chemistry; D007501:Iron / Q000737:chemistry; D008345:Manganese / Q000737:chemistry; D008670:Metals / Q000737:chemistry*; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis*; D015204:Spectroscopy, Mossbauer; D013057:Spectrum Analysis; D014961:X-Ray Diffraction
D001596:Benzylamines; D007202:Indicators and Reagents; D008670:Metals; D009942:Organometallic Compounds; D007204:Indium; D008345:Manganese; D007501:Iron