Reaction of aryl diazonium salts and diiron(I) dithiolato carbonyls: Evidence for radical intermediates

Matthew T. Olsen; Thomas B. Rauchfuss; Riccardo Zaffaroni

doi:10.1021/om300107s

Reaction of aryl diazonium salts and diiron(I) dithiolato carbonyls: Evidence for radical intermediates

Matthew T. Olsen, Thomas B. Rauchfuss, Riccardo Zaffaroni

Chemistry

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

Abstract

Treatment of Fe ₂(pdt)(CO) ₄(dppv) (1) with aryldiazonium salts affords the 34 e ^- adducts [Fe ₂(pdt) (ν-N ₂Ar)(CO) ₄(dppv)] ⁺ (pdt ^2- = 1,3-propanedithiolate, dppv = cis-C ₂H ₂(PPh ₂) ₂). Under some conditions, the same reaction gave substantial amounts of [1] ⁺, the product of electron transfer. Consistent with the influence of electron transfer in the reactions of some electrophiles with Fe(I)Fe(I) dithiolates, the reaction of [Me ₃S ₂] ⁺ and Fe ₂(pdt)(CO) ₄(dppbz) was found to give [Fe ₂(pdt)(CO) ₄(dppbz)] ⁺ as well as Me ₂S and Me ₂S ₂ (dppbz = 1,2- bis(diphenylphosphino)benzene).

Original language	English (US)
Pages (from-to)	3447-3450
Number of pages	4
Journal	Organometallics
Volume	31
Issue number	8
DOIs	https://doi.org/10.1021/om300107s
State	Published - Apr 23 2012

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1021/om300107s

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title = "Reaction of aryl diazonium salts and diiron(I) dithiolato carbonyls: Evidence for radical intermediates",

abstract = "Treatment of Fe 2(pdt)(CO) 4(dppv) (1) with aryldiazonium salts affords the 34 e - adducts [Fe 2(pdt) (ν-N 2Ar)(CO) 4(dppv)] + (pdt 2- = 1,3-propanedithiolate, dppv = cis-C 2H 2(PPh 2) 2). Under some conditions, the same reaction gave substantial amounts of [1] +, the product of electron transfer. Consistent with the influence of electron transfer in the reactions of some electrophiles with Fe(I)Fe(I) dithiolates, the reaction of [Me 3S 2] + and Fe 2(pdt)(CO) 4(dppbz) was found to give [Fe 2(pdt)(CO) 4(dppbz)] + as well as Me 2S and Me 2S 2 (dppbz = 1,2- bis(diphenylphosphino)benzene).",

author = "Olsen, {Matthew T.} and Rauchfuss, {Thomas B.} and Riccardo Zaffaroni",

year = "2012",

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T1 - Reaction of aryl diazonium salts and diiron(I) dithiolato carbonyls

T2 - Evidence for radical intermediates

AU - Olsen, Matthew T.

AU - Rauchfuss, Thomas B.

AU - Zaffaroni, Riccardo

PY - 2012/4/23

Y1 - 2012/4/23

N2 - Treatment of Fe 2(pdt)(CO) 4(dppv) (1) with aryldiazonium salts affords the 34 e - adducts [Fe 2(pdt) (ν-N 2Ar)(CO) 4(dppv)] + (pdt 2- = 1,3-propanedithiolate, dppv = cis-C 2H 2(PPh 2) 2). Under some conditions, the same reaction gave substantial amounts of [1] +, the product of electron transfer. Consistent with the influence of electron transfer in the reactions of some electrophiles with Fe(I)Fe(I) dithiolates, the reaction of [Me 3S 2] + and Fe 2(pdt)(CO) 4(dppbz) was found to give [Fe 2(pdt)(CO) 4(dppbz)] + as well as Me 2S and Me 2S 2 (dppbz = 1,2- bis(diphenylphosphino)benzene).

AB - Treatment of Fe 2(pdt)(CO) 4(dppv) (1) with aryldiazonium salts affords the 34 e - adducts [Fe 2(pdt) (ν-N 2Ar)(CO) 4(dppv)] + (pdt 2- = 1,3-propanedithiolate, dppv = cis-C 2H 2(PPh 2) 2). Under some conditions, the same reaction gave substantial amounts of [1] +, the product of electron transfer. Consistent with the influence of electron transfer in the reactions of some electrophiles with Fe(I)Fe(I) dithiolates, the reaction of [Me 3S 2] + and Fe 2(pdt)(CO) 4(dppbz) was found to give [Fe 2(pdt)(CO) 4(dppbz)] + as well as Me 2S and Me 2S 2 (dppbz = 1,2- bis(diphenylphosphino)benzene).

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Reaction of aryl diazonium salts and diiron(I) dithiolato carbonyls: Evidence for radical intermediates

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