TY - JOUR
T1 - Ferrocenyl substituted carboranes
T2 - Synthesis and characterisation
AU - Beckering, Carsten L.
AU - Rosair, Georgina M.
AU - Weller, Andrew S.
PY - 1998/4/15
Y1 - 1998/4/15
N2 - The reaction between ethynyl ferrocene and decaborane affords the new ferrocenyl substituted carborane 1-{Fc}-1,2-closo-C2B10H11 1 [Fc=(?5-C5H4)Fe(?5-C 5H5)]. Deboronation of 1 gives K[7-{Fc}-7,8-nido-C2B9H11] 2, and subsequent metallation, using the {Ru(p-cym)} fragment, affords the novel ferrocenyl substituted ruthenacarborane 1-{Fc}-3-(p-cym)-3,1,2-closo-RuC2B9H10 3 (p-cym=1-Me-C4H4-4-iPr). Reaction between bis(methylethynyl)ferrocene and decaborane affords the bis carborane substituted ferrocene 1,1'-{Fc'}-{2-Me-1,2-closo-C2B10H 10}2, 4 [Fc'=(?5-C5H4)Fe(? 5-C5H4)]. Deboronation of 4 results in the formation [HNMe3]2[7,7'-{Fc'}-{7-Me-7,8-nido-C 2B9H10}2], 5, isolated as a syn and anti diastereoisomeric pair. Metallation of 5 affords the trimetallic ruthenacarborane 1,1-{Fc'}-{2-Me-3-(p-cym)-3,1,2-closo-RuC2B9H 9}2 3, as a mixture of syn and anti diastereoisomers. All the new complexes have been fully characterised by multinuclear NMR and micro-analysis, and for compounds 1, 3, 4 and anti-6 by a single crystal X-ray study.
AB - The reaction between ethynyl ferrocene and decaborane affords the new ferrocenyl substituted carborane 1-{Fc}-1,2-closo-C2B10H11 1 [Fc=(?5-C5H4)Fe(?5-C 5H5)]. Deboronation of 1 gives K[7-{Fc}-7,8-nido-C2B9H11] 2, and subsequent metallation, using the {Ru(p-cym)} fragment, affords the novel ferrocenyl substituted ruthenacarborane 1-{Fc}-3-(p-cym)-3,1,2-closo-RuC2B9H10 3 (p-cym=1-Me-C4H4-4-iPr). Reaction between bis(methylethynyl)ferrocene and decaborane affords the bis carborane substituted ferrocene 1,1'-{Fc'}-{2-Me-1,2-closo-C2B10H 10}2, 4 [Fc'=(?5-C5H4)Fe(? 5-C5H4)]. Deboronation of 4 results in the formation [HNMe3]2[7,7'-{Fc'}-{7-Me-7,8-nido-C 2B9H10}2], 5, isolated as a syn and anti diastereoisomeric pair. Metallation of 5 affords the trimetallic ruthenacarborane 1,1-{Fc'}-{2-Me-3-(p-cym)-3,1,2-closo-RuC2B9H 9}2 3, as a mixture of syn and anti diastereoisomers. All the new complexes have been fully characterised by multinuclear NMR and micro-analysis, and for compounds 1, 3, 4 and anti-6 by a single crystal X-ray study.
KW - Carborane
KW - Ferrocenyl
KW - Metallocaboranes
KW - Ruthenacarborane
UR - http://www.scopus.com/inward/record.url?scp=0002887843&partnerID=8YFLogxK
U2 - 10.1016/S0022-328X(97)00676-1
DO - 10.1016/S0022-328X(97)00676-1
M3 - Article
SN - 0022-328X
VL - 556
SP - 55
EP - 66
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
IS - 1-2
ER -