2000
DOI: 10.1021/om000372g
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Transition-Metal-Substituted Dichlorobismuthanes as Starting Materials for Novel Bismuth−Transition-Metal Clusters

Abstract: The reaction of [{Cp(CO) 2 Fe}BiCl 2 ] (1a) with [Co(CO) 4 ]leads to the formation of the first heteroleptic substituted bismuthane, [(µ 3 -Bi){Co(CO) 4 } 2 {Fe(CO) 2 Cp}] (2). When the "open" complex 2 is irradiated, the heterocubane [Bi 4 {Co(CO) 3 } 4 ] (3) is formed. [{Cp′′(CO) 2 Fe}BiCl 2 ] (1b; Cp′′ ) η 5 -C 5 H 3 -tBu 2 ) reacts with [Fe(CO) 4 ] 2to give the nido cluster [{Fe 3 (CO) 9 }{µ-BiFe(CO) 2 Cp′′} 2 ] (4) and to give the complex [Bi 4 {µ 3 -Fe(CO) 3 } 3 {Fe(CO) 2 Cp′′} 2 ] (5); the latter contai… Show more

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Cited by 43 publications
(31 citation statements)
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“…[14] In view of the significantly larger inter-ligand repulsions in 3 and 4 compared to [W(CO) 5 longer end of the range observed in other Bi-Fe clusters containing iron carbonyl fragments. [31] Finally, it should be noted that the different steric demand of the flanking aryl rings has only a very minor effect on the overall structures of 3 and 4. In 3, the Bi-Bi and Bi-C bonds are slightly longer and the Bi-Bi-C angles are marginally wider which is in accord with larger bulk of the aryl substituents.…”
Section: Resultsmentioning
confidence: 99%
“…[14] In view of the significantly larger inter-ligand repulsions in 3 and 4 compared to [W(CO) 5 longer end of the range observed in other Bi-Fe clusters containing iron carbonyl fragments. [31] Finally, it should be noted that the different steric demand of the flanking aryl rings has only a very minor effect on the overall structures of 3 and 4. In 3, the Bi-Bi and Bi-C bonds are slightly longer and the Bi-Bi-C angles are marginally wider which is in accord with larger bulk of the aryl substituents.…”
Section: Resultsmentioning
confidence: 99%
“…during the reaction), resulting in compound [nBu 4 [4,5] Three other examples, I, III and IV, display more distorted Bi 4 tetrahedra. The Bi-Bi distances are lying in the regions 313.9-347.3, [3] 308.9-353.0 [5] and 320.1-350.9 [6] pm, respectively. All of these BiBi distances lie in an interval comparable with the closest Bi-Bi contacts of 307.1-352.9 pm in the pure crystalline element.…”
Section: Synthesismentioning
confidence: 99%
“…All of these BiBi distances lie in an interval comparable with the closest Bi-Bi contacts of 307.1-352.9 pm in the pure crystalline element. [10] The four tetrahedral Bi 4 [4,5] The special structural feature of 2a are the four Fe(CO) 4 fragments coordinated in a µ 1 fashion to four Bi atoms. The Bi-Fe bond lengths [d Bi-Fe = 271.9-272.4 pm] are nearly equal to the bridging ones.…”
Section: Synthesismentioning
confidence: 99%
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