TY - JOUR
T1 - Synthesis of metal fullerene complexes by the use of fullerene halides
AU - Matsuo, Yutaka
AU - Kuninobu, Yoichiro
AU - Muramatsu, Ayako
AU - Sawamura, Masaya
AU - Nakamura, Eiichi
PY - 2008/7/28
Y1 - 2008/7/28
N2 - K(C60R5) (1, R = Me, Ph) was generated by deprotonation of C60R5H (2) and allowed to react with N-fluoropyridinium triflate and N-chloro- and N-bromosuccinimide in benzene at 25°C for 10 min to obtain halogenated fullerenes C60R 5X (3a: R = Me, X = F; 3b: R = Me, X = Cl; 3c: R = Me, X = Br; 4a: R = Ph, X = F; 4b: R = Ph, X = Cl, 4c: R = Ph, X = Br) in good yield. The pentamethyl[60]fullerene halides are useful for the synthesis of a variety of η5-fullerene metal complexes. The reaction of the fullerene bromide 3c with the low-valent transition metal complexes Na[Re(CO) 4], Fe(CO)5, Ru3(CO)12, and Na[Co(CO)4] gave Re(η5-C60Me 5)(CO)3 (5), Fe(η5-C60Me 5)Br(CO)2 (6), Ru(η5-C60Me 5)Br(CO)2 (7), and Co(η5-C 60Me5)(CO)2 (8), respectively. The structures of halide 3c and rhenium complex 5 were determined by X-ray crystallography. Electrochemical measurements on 3b and 3c were also performed. The iron complex 6 was converted into Fe(η5-C60Me5)Cp (9), Fe(η5-C60Me5)Me(CO)2 (10), Fe(η5-C60Me5)(CO)2(CCH) (11), and Fe(η5-C60Me5)(CO)2(CCPh) (12), by ligand exchange reactions.
AB - K(C60R5) (1, R = Me, Ph) was generated by deprotonation of C60R5H (2) and allowed to react with N-fluoropyridinium triflate and N-chloro- and N-bromosuccinimide in benzene at 25°C for 10 min to obtain halogenated fullerenes C60R 5X (3a: R = Me, X = F; 3b: R = Me, X = Cl; 3c: R = Me, X = Br; 4a: R = Ph, X = F; 4b: R = Ph, X = Cl, 4c: R = Ph, X = Br) in good yield. The pentamethyl[60]fullerene halides are useful for the synthesis of a variety of η5-fullerene metal complexes. The reaction of the fullerene bromide 3c with the low-valent transition metal complexes Na[Re(CO) 4], Fe(CO)5, Ru3(CO)12, and Na[Co(CO)4] gave Re(η5-C60Me 5)(CO)3 (5), Fe(η5-C60Me 5)Br(CO)2 (6), Ru(η5-C60Me 5)Br(CO)2 (7), and Co(η5-C 60Me5)(CO)2 (8), respectively. The structures of halide 3c and rhenium complex 5 were determined by X-ray crystallography. Electrochemical measurements on 3b and 3c were also performed. The iron complex 6 was converted into Fe(η5-C60Me5)Cp (9), Fe(η5-C60Me5)Me(CO)2 (10), Fe(η5-C60Me5)(CO)2(CCH) (11), and Fe(η5-C60Me5)(CO)2(CCPh) (12), by ligand exchange reactions.
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U2 - 10.1021/om8001262
DO - 10.1021/om8001262
M3 - Article
AN - SCOPUS:49349103898
VL - 27
SP - 3403
EP - 3409
JO - Organometallics
JF - Organometallics
SN - 0276-7333
IS - 14
ER -