A homologous series of alkynyl chalcoether complexes: [W(η2-iPrEC[tbnd]CPh)(CO)2(Tp*)]BF4 (E = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazol-1-yl)borate)

Lorraine M. Caldwell; Anthony F. Hill; Anthony C. Willis

doi:10.1016/j.jorganchem.2016.11.024

A homologous series of alkynyl chalcoether complexes: [W(η²-ⁱPrEC[tbnd]CPh)(CO)₂(Tp)]BF₄ (E = O, S, Se, Te; Tp = hydrotris(dimethylpyrazol-1-yl)borate)

Lorraine M. Caldwell, Anthony F. Hill^*, Anthony C. Willis

^*Corresponding author for this work

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

5 Citations (Scopus)

Abstract

The first complete set of homologous alkynyl chalcoether complexes, isolated as the structurally characterized salts [W(η²-ⁱPrEC[tbnd]CPh)(CO)₂(Tp*)]BF₄ (A = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazolyl)borate), result from the reactions of the free alkynes ⁱPrEC[tbnd]CPh with [WI(CO)₃(Tp*)] in the presence of AgBF₄. The neutral complex [W(η²-ⁱPrSeC[tbnd]CPh)Cl(CO)(Tp*)] is obtained from the reaction of [W(η²-ⁱPrSeC[tbnd]CPh)(CO)₂(Tp*)]BF₄ with [ⁿBu₄N]Cl and co-exists in two forms in solution as a result of slow rotational isomerism of the alkyne. Depending on the choice of solvent, either pure rotamer may be crystallised.

Original language	English
Pages (from-to)	48-57
Number of pages	10
Journal	Journal of Organometallic Chemistry
Volume	829
DOIs	https://doi.org/10.1016/j.jorganchem.2016.11.024
Publication status	Published - 1 Feb 2017

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@article{3611cf1917f04829a06cf6fbbcab67f7,

title = "A homologous series of alkynyl chalcoether complexes: [W(η2-iPrEC[tbnd]CPh)(CO)2(Tp*)]BF4 (E = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazol-1-yl)borate)",

abstract = "The first complete set of homologous alkynyl chalcoether complexes, isolated as the structurally characterized salts [W(η2-iPrEC[tbnd]CPh)(CO)2(Tp*)]BF4 (A = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazolyl)borate), result from the reactions of the free alkynes iPrEC[tbnd]CPh with [WI(CO)3(Tp*)] in the presence of AgBF4. The neutral complex [W(η2-iPrSeC[tbnd]CPh)Cl(CO)(Tp*)] is obtained from the reaction of [W(η2-iPrSeC[tbnd]CPh)(CO)2(Tp*)]BF4 with [nBu4N]Cl and co-exists in two forms in solution as a result of slow rotational isomerism of the alkyne. Depending on the choice of solvent, either pure rotamer may be crystallised.",

keywords = "Alkyne, Chalcogen chalcoether, Complex, Tungsten",

author = "Caldwell, {Lorraine M.} and Hill, {Anthony F.} and Willis, {Anthony C.}",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

month = feb,

day = "1",

doi = "10.1016/j.jorganchem.2016.11.024",

language = "English",

volume = "829",

pages = "48--57",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - A homologous series of alkynyl chalcoether complexes

T2 - [W(η2-iPrEC[tbnd]CPh)(CO)2(Tp*)]BF4 (E = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazol-1-yl)borate)

AU - Caldwell, Lorraine M.

AU - Hill, Anthony F.

AU - Willis, Anthony C.

PY - 2017/2/1

Y1 - 2017/2/1

N2 - The first complete set of homologous alkynyl chalcoether complexes, isolated as the structurally characterized salts [W(η2-iPrEC[tbnd]CPh)(CO)2(Tp*)]BF4 (A = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazolyl)borate), result from the reactions of the free alkynes iPrEC[tbnd]CPh with [WI(CO)3(Tp*)] in the presence of AgBF4. The neutral complex [W(η2-iPrSeC[tbnd]CPh)Cl(CO)(Tp*)] is obtained from the reaction of [W(η2-iPrSeC[tbnd]CPh)(CO)2(Tp*)]BF4 with [nBu4N]Cl and co-exists in two forms in solution as a result of slow rotational isomerism of the alkyne. Depending on the choice of solvent, either pure rotamer may be crystallised.

AB - The first complete set of homologous alkynyl chalcoether complexes, isolated as the structurally characterized salts [W(η2-iPrEC[tbnd]CPh)(CO)2(Tp*)]BF4 (A = O, S, Se, Te; Tp* = hydrotris(dimethylpyrazolyl)borate), result from the reactions of the free alkynes iPrEC[tbnd]CPh with [WI(CO)3(Tp*)] in the presence of AgBF4. The neutral complex [W(η2-iPrSeC[tbnd]CPh)Cl(CO)(Tp*)] is obtained from the reaction of [W(η2-iPrSeC[tbnd]CPh)(CO)2(Tp*)]BF4 with [nBu4N]Cl and co-exists in two forms in solution as a result of slow rotational isomerism of the alkyne. Depending on the choice of solvent, either pure rotamer may be crystallised.

KW - Alkyne

KW - Chalcogen chalcoether

KW - Complex

KW - Tungsten

UR - http://www.scopus.com/inward/record.url?scp=85010723443&partnerID=8YFLogxK

U2 - 10.1016/j.jorganchem.2016.11.024

DO - 10.1016/j.jorganchem.2016.11.024

M3 - Article

SN - 0022-328X

VL - 829

SP - 48

EP - 57

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

ER -

A homologous series of alkynyl chalcoether complexes: [W(η²-ⁱPrEC[tbnd]CPh)(CO)₂(Tp)]BF₄ (E = O, S, Se, Te; Tp = hydrotris(dimethylpyrazol-1-yl)borate)

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