TY - JOUR
T1 - Self-assembly of tetrahedral and trigonal antiprismatic clusters [Fe4(L4)4] and [Fe6(L5)6] on the basis of trigonal tris-bidentate chelators
AU - Saalfrank, Rolf W.
AU - Glaser, Horst
AU - Demleitner, Bernhard
AU - Hampel, Frank
AU - Chowdhry, Mubarik M.
AU - Schünemann, Volker
AU - Trautwein, Alfred X.
AU - Vaughan, Gavin B.M.
AU - Yeh, Robert
AU - Davis, Anna V.
AU - Raymond, Kenneth N.
PY - 2002/1/18
Y1 - 2002/1/18
N2 - In a one-pot reaction, the tetranuclear iron chelate complex [Fe4(C4)4] 6 was generated from benzene-1,3,5-tricarboxylic acid trichloride (4), bis-tert-butyl malonate (5a), methyllithium, and iron(II) dichloride under aerobic conditions. Alternatively, hexanuclear iron chelate complex. [Fe6(L5)6] 7 was formed starting from bis-para-tolyl malonate (5b) by employing identical reaction conditions to those applied for the synthesis of 6. The clusters 6 and 7 are present as racemic mixtures of homoconfigurational (Δ,Δ,Δ,Δ)/(Λ,Λ,Λ,Λ)-fac or (Δ,Δ,Δ,Δ,Δ,Δ)/ (Λ,Λ,Λ,Λ,Λ,Λ)-fac stereoisomers. The structures of 6 and 7 were unequivocally resolved by single-crystal X-ray analyses. The all-iron(III) character of 6 and 7 was determined by Mössbauer spectroscopy.
AB - In a one-pot reaction, the tetranuclear iron chelate complex [Fe4(C4)4] 6 was generated from benzene-1,3,5-tricarboxylic acid trichloride (4), bis-tert-butyl malonate (5a), methyllithium, and iron(II) dichloride under aerobic conditions. Alternatively, hexanuclear iron chelate complex. [Fe6(L5)6] 7 was formed starting from bis-para-tolyl malonate (5b) by employing identical reaction conditions to those applied for the synthesis of 6. The clusters 6 and 7 are present as racemic mixtures of homoconfigurational (Δ,Δ,Δ,Δ)/(Λ,Λ,Λ,Λ)-fac or (Δ,Δ,Δ,Δ,Δ,Δ)/ (Λ,Λ,Λ,Λ,Λ,Λ)-fac stereoisomers. The structures of 6 and 7 were unequivocally resolved by single-crystal X-ray analyses. The all-iron(III) character of 6 and 7 was determined by Mössbauer spectroscopy.
UR - http://www.scopus.com/inward/record.url?scp=0037127020&partnerID=8YFLogxK
U2 - 10.1002/1521-3765(20020118)8:2<493::AID-CHEM493>3.0.CO;2-5
DO - 10.1002/1521-3765(20020118)8:2<493::AID-CHEM493>3.0.CO;2-5
M3 - Journal articles
C2 - 11858175
AN - SCOPUS:0037127020
SN - 0947-6539
VL - 8
SP - 493
EP - 497
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
IS - 2
ER -