Alkynylselenolatoalkylidynes: [Mo(≡CSeC≡CR)(CO) 2{HB(pzMe2)3}] (R = CMe3, SiMe 3; pzMe2 = 3,5-dimethylpyrazol-1-yl)

Lorraine M. Caldwell; Anthony F. Hill; A. David Rae; Anthony C. Willis

doi:10.1021/om7008342

Alkynylselenolatoalkylidynes: [Mo(≡CSeC≡CR)(CO) ₂{HB(pzMe₂)₃}] (R = CMe₃, SiMe ₃; pzMe₂ = 3,5-dimethylpyrazol-1-yl)

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

^*Corresponding author for this work

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

34 Citations (Scopus)

Abstract

The reactions of [Mo(≡CCI)(CO)₂{HB(pzMe₂) ₃]] (pz = 3,5-dimethylpyrazol-1-yl) with lithium alkynylselenolates (LiSeC=CR; R = CMe₃, SiMe₃) provide the alkynylselenolatoalkylidyne complexes [Mo(≡CSeC≡CR)(CO) ₂{HB(pzMe₂)₃}]. Cobalt carbonyl adds across the C≡C rather than the Mo≡C multiple bond to provide [Mo{≡CSeCC(CMe₃)Co₂(CO)₆](CO) ₂{HB(pzMe₂)₃]], which upon reaction with dppm affords the complex [Mo{≡CSeCC(CMe₃)Co₂(CO) ₄(dppm)}(CO)₂{HB(pzMe₂)₃]] in addition to traces of the selenium extrusion product [Mo{≡CCC(CMe ₃)Co₂(CO)₄(dppm)((CO)₂{HB-(pzMe ₂)₃}].

Original language	English
Pages (from-to)	341-345
Number of pages	5
Journal	Organometallics
Volume	27
Issue number	3
DOIs	https://doi.org/10.1021/om7008342
Publication status	Published - 11 Feb 2008

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@article{063a893aa9f543b3b134260cae2aaa7f,

title = "Alkynylselenolatoalkylidynes: [Mo(≡CSeC≡CR)(CO) 2{HB(pzMe2)3}] (R = CMe3, SiMe 3; pzMe2 = 3,5-dimethylpyrazol-1-yl)",

abstract = "The reactions of [Mo(≡CCI)(CO)2{HB(pzMe2) 3]] (pz = 3,5-dimethylpyrazol-1-yl) with lithium alkynylselenolates (LiSeC=CR; R = CMe3, SiMe3) provide the alkynylselenolatoalkylidyne complexes [Mo(≡CSeC≡CR)(CO) 2{HB(pzMe2)3}]. Cobalt carbonyl adds across the C≡C rather than the Mo≡C multiple bond to provide [Mo{≡CSeCC(CMe3)Co2(CO)6](CO) 2{HB(pzMe2)3]], which upon reaction with dppm affords the complex [Mo{≡CSeCC(CMe3)Co2(CO) 4(dppm)}(CO)2{HB(pzMe2)3]] in addition to traces of the selenium extrusion product [Mo{≡CCC(CMe 3)Co2(CO)4(dppm)((CO)2{HB-(pzMe 2)3}].",

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

year = "2008",

month = feb,

day = "11",

doi = "10.1021/om7008342",

language = "English",

volume = "27",

pages = "341--345",

journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

number = "3",

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TY - JOUR

T1 - Alkynylselenolatoalkylidynes

T2 - [Mo(≡CSeC≡CR)(CO) 2{HB(pzMe2)3}] (R = CMe3, SiMe 3; pzMe2 = 3,5-dimethylpyrazol-1-yl)

AU - Caldwell, Lorraine M.

AU - Hill, Anthony F.

AU - Rae, A. David

AU - Willis, Anthony C.

PY - 2008/2/11

Y1 - 2008/2/11

N2 - The reactions of [Mo(≡CCI)(CO)2{HB(pzMe2) 3]] (pz = 3,5-dimethylpyrazol-1-yl) with lithium alkynylselenolates (LiSeC=CR; R = CMe3, SiMe3) provide the alkynylselenolatoalkylidyne complexes [Mo(≡CSeC≡CR)(CO) 2{HB(pzMe2)3}]. Cobalt carbonyl adds across the C≡C rather than the Mo≡C multiple bond to provide [Mo{≡CSeCC(CMe3)Co2(CO)6](CO) 2{HB(pzMe2)3]], which upon reaction with dppm affords the complex [Mo{≡CSeCC(CMe3)Co2(CO) 4(dppm)}(CO)2{HB(pzMe2)3]] in addition to traces of the selenium extrusion product [Mo{≡CCC(CMe 3)Co2(CO)4(dppm)((CO)2{HB-(pzMe 2)3}].

AB - The reactions of [Mo(≡CCI)(CO)2{HB(pzMe2) 3]] (pz = 3,5-dimethylpyrazol-1-yl) with lithium alkynylselenolates (LiSeC=CR; R = CMe3, SiMe3) provide the alkynylselenolatoalkylidyne complexes [Mo(≡CSeC≡CR)(CO) 2{HB(pzMe2)3}]. Cobalt carbonyl adds across the C≡C rather than the Mo≡C multiple bond to provide [Mo{≡CSeCC(CMe3)Co2(CO)6](CO) 2{HB(pzMe2)3]], which upon reaction with dppm affords the complex [Mo{≡CSeCC(CMe3)Co2(CO) 4(dppm)}(CO)2{HB(pzMe2)3]] in addition to traces of the selenium extrusion product [Mo{≡CCC(CMe 3)Co2(CO)4(dppm)((CO)2{HB-(pzMe 2)3}].

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U2 - 10.1021/om7008342

DO - 10.1021/om7008342

M3 - Article

SN - 0276-7333

VL - 27

SP - 341

EP - 345

JO - Organometallics

JF - Organometallics

IS - 3

ER -

Alkynylselenolatoalkylidynes: [Mo(≡CSeC≡CR)(CO) ₂{HB(pzMe₂)₃}] (R = CMe₃, SiMe ₃; pzMe₂ = 3,5-dimethylpyrazol-1-yl)

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