2009
DOI: 10.1515/znb-2009-0815
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The Anion [Co(C8H12)2]–. A Comparative Study of the Crystal Structures of [{K(18-crown-6)}2(C5H5)][Co(C8H12)2] and Co(C8H12)(C8H13)

Abstract: The cobalt complex [{K(18-crown-6)} 2 (C 5 H 5 )]-[Co (C 8 H 12 ) 2 ]·(THF) 2 (3) has been synthesized and characterized by X-ray single-crystal structure determination. The crystal structure of Co(C 8 H 12 )(C 8 H 13 ) (2) has been reinvestigated and compared with the structure of 3. The 1,5-cyclooctadiene (C 8 H 12 ) and C 8 H 13 ligands are coordinated in an η 4 and η 3 fashion, respectively. The cyclopentadienyl anion in [{K(18-crown-6)} 2 (C 5 H 5 )] + in 3 is η 5 -coordinated to the two crown ether-enca… Show more

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Cited by 7 publications
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“…The dark-maroon-brown crystals initially isolated from this reaction were analyzed by X-ray diffraction and provided the first crystallographic evidence for the Tb 2+ ion in a molecular complex, {[K(18-crown-6)] 2 (μ-Cp′)}{Cp′ 3 Tb}, 3-Tb , eq . The structure of 3 , Figure , differed from the [(18-crown-6)K][Cp′ 3 Ln], 2 , products in eq in that the cation was not located adjacent to a cyclopentadienyl ring of the anion and the cation was a dipotassium cyclopentadienyl inverse sandwich. …”
Section: Resultsmentioning
confidence: 91%
“…The dark-maroon-brown crystals initially isolated from this reaction were analyzed by X-ray diffraction and provided the first crystallographic evidence for the Tb 2+ ion in a molecular complex, {[K(18-crown-6)] 2 (μ-Cp′)}{Cp′ 3 Tb}, 3-Tb , eq . The structure of 3 , Figure , differed from the [(18-crown-6)K][Cp′ 3 Ln], 2 , products in eq in that the cation was not located adjacent to a cyclopentadienyl ring of the anion and the cation was a dipotassium cyclopentadienyl inverse sandwich. …”
Section: Resultsmentioning
confidence: 91%