Synthesis and structural characterisation of some cyclopentadienyliron–bismuth complexes

Clegg, William; Compton, Neville; Errington, R. John; Norman, Nicholas C.

doi:10.1039/dt9880001671

Cited by 42 publications

(25 citation statements)

References 3 publications

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“…The i.r. spectrum of this material in thf (Figure 5 and Table 1) is very similar to that obtained for (15) indicating that the complexes are structurally similar. Moreover, examination of the 'H n.m.r.…”

Section: The Analogous Reaction Between Bicl and 2 Equivalents Of [ M...supporting

confidence: 67%

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)₃(η-C₅H₅)}₂] and [BiCl{Mo(CO)₂(CNBu^t)(η-C₅H₅)}₂]

Clegg¹,

Compton²,

Errington³

et al. 1988

J. Chem. Soc., Dalton Trans.

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The reaction between BiCI, and 3 equivalents of Na[ M o ( CO),(q-C,H,)] affords the trimolybdenumbismuth complex [ Bi{Mo(C0),(q-C,H5)},],(1 ), which has been characterised b y spectroscopic methods. The corresponding reaction involving 2 equivalents of Na [ Mo(CO)~(~-C,H,)] affords the disubstituted product [BiCI{Mo(CO),(q-C,H,)},],(3), which has been characterised b y X-ray diffraction. The molecular structure comprises a trigonal pyramidal bismuth atom bonded to one chlorine and two M o ( CO),(q-C,H,) fragments and containing a stereochemically active lone pair at the apex of the pyramid. The two crystallographically independent molecules have similar conformations but a weak intermolecular Bi 9 CI interaction, which is present for both molecules, is significantly different in each case. Treatment of a solution of compound (1 ) with 0.5 equivalent of BiCI, affords (3) and when pure samples of (3) are treated with 1 equivalent of BiCI, a redistribution reaction is also observed forming [ BiCI,{ M o ( CO),(q-C,H,)}].A similar range of compounds has been synthesised containing the methylcyclopentadienyl ligand. The analogous tungsten chemistry has also been investigated and similar tri-, di-, and mono-tungsten-bismuth compounds have been synthesised. Slight differences between the molybdenum and tungsten systems are observed, however, under the reaction conditions employed and these are discussed in terms of the possible mechanisms involved. Finally, the reactions between BiCI, and 2 equivalents of the carbonyl-substituted anions [Mo(CO),L(q-C,H,)]-(L = ButNC, MeNC, or PPh,) have been examined. These result in the dimolybdenum-bismuth complexes [BiCl{Mo( CO),L(q-C,H,)},], L = ButNC (15), M e N C (16), or PPh, (17). The first t w o complexes exist as mixtures of isomers, viz, cis,trans and trans,trans with regard to the stereochemistry at the molybdenum centres, whilst the latter exists as the trans,trans form. The cis,trans form of (1 5) was characterised by X-ray diffraction. The structure is similar t o that observed for compound (3) except that no short intermolecular B i CI interactions are present. Spectroscopic and analytical data for the complexes are presented.

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Section: The Analogous Reaction Between Bicl and 2 Equivalents Of [ M...supporting

confidence: 67%

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)₃(η-C₅H₅)}₂] and [BiCl{Mo(CO)₂(CNBu^t)(η-C₅H₅)}₂]

Clegg¹,

Compton²,

Errington³

et al. 1988

J. Chem. Soc., Dalton Trans.

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“…As electronegativity decreases as the group is descended, these secondary interactions are more pronounced for bismuth compounds than the corresponding antimony analogues. A well known, and characterised, example of such an oligomeric structure in a transition metal-bismuth compound is the planar, six-membered ring formed by trimerisation in the solid state of [{Cp(CO) 2 Fe} 2 BiCl] (Cp = 5 -C 5 H 5 ) (2) [13,14], as shown in Fig. 1.…”

Section: Introductionmentioning

confidence: 98%

Synthesis, structure and reactivity of complexes containing a transition metal–bismuth bond

Braunschweig

Cogswell

Schwab

2011

Coordination Chemistry Reviews

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“…The third band was the compound [Cp*Fe(CO) 2 Cl]. 15,16 2.4 Preparation of (Cp(CO) 3 W(COC 6 H 4 CH=CH 2 )) (3)…”

Section: Preparation Of Cp(co) 2 Fe(coc 6 H 4 Ch=ch 2 ) (1)mentioning

confidence: 99%

The synthesis and characterization of metal-containing vinylic monomers of iron and tungsten

Mapolie

Moss

Smith

1998

Appl. Organometal. Chem.

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A series of metal‐containing vinylic monomers of the type LnM(COC6H4CH=CH2) and LnM (COCH=CHC6H5) [LnM = (η5‐C5H5)Fe(CO)2, (η5‐C5Me5)Fe(CO)2 and (η5‐C5H5)W(CO)3] were prepared by the reaction of the appropriate metal anion with either 4‐vinylbenzoyl chloride or cinnamoyl chloride. (η5‐C5H5)(CO)2FeCOCH=CH2 was prepared by the reaction of Na[(η5‐C5H5)Fe(CO)2] and acryloyl chloride, whereas the compound (η5‐C5H5)(CO)2Fe(C6H4CH=CH2) was prepared via a transmetallation reaction using a palladium catalyst. All compounds were fully characterized using FTIR, 1H and 13C NMR spectroscopy and mass spectrometry. Copyright © 1998 John Wiley & Sons, Ltd.

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Synthesis and structural characterisation of some cyclopentadienyliron–bismuth complexes

Cited by 42 publications

References 3 publications

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)₃(η-C₅H₅)}₂] and [BiCl{Mo(CO)₂(CNBu^t)(η-C₅H₅)}₂]

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)₃(η-C₅H₅)}₂] and [BiCl{Mo(CO)₂(CNBu^t)(η-C₅H₅)}₂]

Synthesis, structure and reactivity of complexes containing a transition metal–bismuth bond

The synthesis and characterization of metal-containing vinylic monomers of iron and tungsten

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Synthesis and structural characterisation of some cyclopentadienyliron–bismuth complexes

Cited by 42 publications

References 3 publications

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)3(η-C5H5)}2] and [BiCl{Mo(CO)2(CNBut)(η-C5H5)}2]

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)3(η-C5H5)}2] and [BiCl{Mo(CO)2(CNBut)(η-C5H5)}2]

Synthesis, structure and reactivity of complexes containing a transition metal–bismuth bond

The synthesis and characterization of metal-containing vinylic monomers of iron and tungsten

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Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)₃(η-C₅H₅)}₂] and [BiCl{Mo(CO)₂(CNBu^t)(η-C₅H₅)}₂]

Synthetic and structural studies on organomolybdenum and organotunsten complexes containing bismuth. X-Ray crystal structures of [BiCl{Mo(CO)₃(η-C₅H₅)}₂] and [BiCl{Mo(CO)₂(CNBu^t)(η-C₅H₅)}₂]