Reactions of μ-alkylidyne complexes with tellurium. Telluroacyl versus μ-telluride formation

Alexander J. Hulkes; Anthony F. Hill; Bashir A. Nasir; Andrew J.P. White; David J. Williams

doi:10.1021/om030614n

Reactions of μ-alkylidyne complexes with tellurium. Telluroacyl versus μ-telluride formation

Alexander J. Hulkes^*, Anthony F. Hill, Bashir A. Nasir, Andrew J.P. White, David J. Williams

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

The reactions of heterobimetallic μ-alkylidyne complexes [MFe(μ-CR)(CO)_n(η-C₅H₅)] (M = W, Mo; R = C₆H₄Me-4 (R¹), C₆H₃Me₂-2,6 (R²); n = 5, 6) with elemental tellurium are reported. For [WFe(μ-CR¹)(CO)_n(η-C₅H₅)] (n = 5 or 6), the only isolated product is the first example of a complex with a bridging telluroaroyl ligand [WFe(μ-TeCR¹)(CO)₅(η-C₅H₅)] (5a-Te), which reacts with dppm to provide [WFe(μ-TeCR¹)(μ-dppm)(CO)₃(η-C₅H₅)] (6-Te). The complexes [MFe(μ-CR²)(CO)₅(η-C₅H₅)] (M = W, Mo) however react with tellurium under ultrasonic activation to provide the telluroaroyl [MoFe(μ-TeCR²)(CO)₅(η-C₅H₅)] (5b-Te) or μ-telluride clusters [MFe₂(μ-CR²)(μ₃-Te)(CO)₇(η -C₅H₅)] (M = W 7a-Te, M = Mo 7b-Te). Complex 7a-Te reacts with dppm to provide [MFe₂(μ-CR²)(μ₃-Te)(CO)₇(η -C₅H₅)] (8b-Te). Crystal structures of 5a-Te, 6a-Te, and 7a-Te are reported.

Original language	English
Pages (from-to)	679-686
Number of pages	8
Journal	Organometallics
Volume	23
Issue number	4
DOIs	https://doi.org/10.1021/om030614n
Publication status	Published - 16 Feb 2004

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@article{778ceea6981247dd821d3fa565b9cf6c,

title = "Reactions of μ-alkylidyne complexes with tellurium. Telluroacyl versus μ-telluride formation",

abstract = "The reactions of heterobimetallic μ-alkylidyne complexes [MFe(μ-CR)(CO)n(η-C5H5)] (M = W, Mo; R = C6H4Me-4 (R1), C6H3Me2-2,6 (R2); n = 5, 6) with elemental tellurium are reported. For [WFe(μ-CR1)(CO)n(η-C5H5)] (n = 5 or 6), the only isolated product is the first example of a complex with a bridging telluroaroyl ligand [WFe(μ-TeCR1)(CO)5(η-C5H5)] (5a-Te), which reacts with dppm to provide [WFe(μ-TeCR1)(μ-dppm)(CO)3(η-C5H 5)] (6-Te). The complexes [MFe(μ-CR2)(CO)5(η-C5H5)] (M = W, Mo) however react with tellurium under ultrasonic activation to provide the telluroaroyl [MoFe(μ-TeCR2)(CO)5(η-C5H5)] (5b-Te) or μ-telluride clusters [MFe2(μ-CR2)(μ3-Te)(CO)7(η -C5H5)] (M = W 7a-Te, M = Mo 7b-Te). Complex 7a-Te reacts with dppm to provide [MFe2(μ-CR2)(μ3-Te)(CO)7(η -C5H5)] (8b-Te). Crystal structures of 5a-Te, 6a-Te, and 7a-Te are reported.",

author = "Hulkes, {Alexander J.} and Hill, {Anthony F.} and Nasir, {Bashir A.} and White, {Andrew J.P.} and Williams, {David J.}",

year = "2004",

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doi = "10.1021/om030614n",

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pages = "679--686",

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T1 - Reactions of μ-alkylidyne complexes with tellurium. Telluroacyl versus μ-telluride formation

AU - Hulkes, Alexander J.

AU - Hill, Anthony F.

AU - Nasir, Bashir A.

AU - White, Andrew J.P.

AU - Williams, David J.

PY - 2004/2/16

Y1 - 2004/2/16

N2 - The reactions of heterobimetallic μ-alkylidyne complexes [MFe(μ-CR)(CO)n(η-C5H5)] (M = W, Mo; R = C6H4Me-4 (R1), C6H3Me2-2,6 (R2); n = 5, 6) with elemental tellurium are reported. For [WFe(μ-CR1)(CO)n(η-C5H5)] (n = 5 or 6), the only isolated product is the first example of a complex with a bridging telluroaroyl ligand [WFe(μ-TeCR1)(CO)5(η-C5H5)] (5a-Te), which reacts with dppm to provide [WFe(μ-TeCR1)(μ-dppm)(CO)3(η-C5H 5)] (6-Te). The complexes [MFe(μ-CR2)(CO)5(η-C5H5)] (M = W, Mo) however react with tellurium under ultrasonic activation to provide the telluroaroyl [MoFe(μ-TeCR2)(CO)5(η-C5H5)] (5b-Te) or μ-telluride clusters [MFe2(μ-CR2)(μ3-Te)(CO)7(η -C5H5)] (M = W 7a-Te, M = Mo 7b-Te). Complex 7a-Te reacts with dppm to provide [MFe2(μ-CR2)(μ3-Te)(CO)7(η -C5H5)] (8b-Te). Crystal structures of 5a-Te, 6a-Te, and 7a-Te are reported.

AB - The reactions of heterobimetallic μ-alkylidyne complexes [MFe(μ-CR)(CO)n(η-C5H5)] (M = W, Mo; R = C6H4Me-4 (R1), C6H3Me2-2,6 (R2); n = 5, 6) with elemental tellurium are reported. For [WFe(μ-CR1)(CO)n(η-C5H5)] (n = 5 or 6), the only isolated product is the first example of a complex with a bridging telluroaroyl ligand [WFe(μ-TeCR1)(CO)5(η-C5H5)] (5a-Te), which reacts with dppm to provide [WFe(μ-TeCR1)(μ-dppm)(CO)3(η-C5H 5)] (6-Te). The complexes [MFe(μ-CR2)(CO)5(η-C5H5)] (M = W, Mo) however react with tellurium under ultrasonic activation to provide the telluroaroyl [MoFe(μ-TeCR2)(CO)5(η-C5H5)] (5b-Te) or μ-telluride clusters [MFe2(μ-CR2)(μ3-Te)(CO)7(η -C5H5)] (M = W 7a-Te, M = Mo 7b-Te). Complex 7a-Te reacts with dppm to provide [MFe2(μ-CR2)(μ3-Te)(CO)7(η -C5H5)] (8b-Te). Crystal structures of 5a-Te, 6a-Te, and 7a-Te are reported.

UR - http://www.scopus.com/inward/record.url?scp=1442358609&partnerID=8YFLogxK

U2 - 10.1021/om030614n

DO - 10.1021/om030614n

M3 - Article

SN - 0276-7333

VL - 23

SP - 679

EP - 686

JO - Organometallics

JF - Organometallics

IS - 4

ER -

Reactions of μ-alkylidyne complexes with tellurium. Telluroacyl versus μ-telluride formation

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