Intramolecular Exchange of Coordinated and Dangling Phosphine Groups in Pentacarbonyl[(diphenylphosphino)(di-p-tolylphosphino)methane]tungsten(0)

Richard L. Keiter; Deliang Chen; Geoffrey A. Holloway; Ellen A. Keiter; Yi Zang; M. Todd Huml; Jonathan Filley; Douglas E. Brandt

Intramolecular Exchange of Coordinated and Dangling Phosphine Groups in Pentacarbonyl[(diphenylphosphino)(di-p-tolylphosphino)methane]tungsten(0)

Richard L. Keiter, Deliang Chen, Geoffrey A. Holloway, Ellen A. Keiter, Yi Zang, M. Todd Huml, Jonathan Filley, Douglas E. Brandt

Eastern Illinois University

Cedarville University

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

Abstract

Equilibrium constants and rates have been determined for the isomerization of the linkage isomers (OC) ₅ W[κ ¹ -PPh ₂ CH ₂ P( p -tolyl) ₂ ] (5) and (OC) ₅ W[κ ¹ -P( p -tolyl) ₂ CH ₂ PPh ₂ ] (6). It is proposed that this intramolecular exchange involves a nucleophilic attack of the pendant phosphine on a cis carbonyl group, followed by ring opening and a 1,2-shift.

Original language	American English
Journal	Organometallics
Volume	31
State	Published - Jun 25 2012

Disciplines

Chemistry

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http://pubs.acs.org/doi/abs/10.1021/om300092x

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@article{9f46ae07d4f14734b48fd79d799bace3,

title = "Intramolecular Exchange of Coordinated and Dangling Phosphine Groups in Pentacarbonyl[(diphenylphosphino)(di-p-tolylphosphino)methane]tungsten(0)",

abstract = " Equilibrium constants and rates have been determined for the isomerization of the linkage isomers (OC) 5 W[κ 1 -PPh 2 CH 2 P( p -tolyl) 2 ] (5) and (OC) 5 W[κ 1 -P( p -tolyl) 2 CH 2 PPh 2 ] (6). It is proposed that this intramolecular exchange involves a nucleophilic attack of the pendant phosphine on a cis carbonyl group, followed by ring opening and a 1,2-shift.",

author = "Keiter, \{Richard L.\} and Deliang Chen and Holloway, \{Geoffrey A.\} and Keiter, \{Ellen A.\} and Yi Zang and Huml, \{M. Todd\} and Jonathan Filley and Brandt, \{Douglas E.\}",

year = "2012",

month = jun,

day = "25",

language = "American English",

volume = "31",

journal = "Organometallics",

}

TY - JOUR

T1 - Intramolecular Exchange of Coordinated and Dangling Phosphine Groups in Pentacarbonyl[(diphenylphosphino)(di-p-tolylphosphino)methane]tungsten(0)

AU - Keiter, Richard L.

AU - Chen, Deliang

AU - Holloway, Geoffrey A.

AU - Keiter, Ellen A.

AU - Zang, Yi

AU - Huml, M. Todd

AU - Filley, Jonathan

AU - Brandt, Douglas E.

PY - 2012/6/25

Y1 - 2012/6/25

N2 - Equilibrium constants and rates have been determined for the isomerization of the linkage isomers (OC) 5 W[κ 1 -PPh 2 CH 2 P( p -tolyl) 2 ] (5) and (OC) 5 W[κ 1 -P( p -tolyl) 2 CH 2 PPh 2 ] (6). It is proposed that this intramolecular exchange involves a nucleophilic attack of the pendant phosphine on a cis carbonyl group, followed by ring opening and a 1,2-shift.

AB - Equilibrium constants and rates have been determined for the isomerization of the linkage isomers (OC) 5 W[κ 1 -PPh 2 CH 2 P( p -tolyl) 2 ] (5) and (OC) 5 W[κ 1 -P( p -tolyl) 2 CH 2 PPh 2 ] (6). It is proposed that this intramolecular exchange involves a nucleophilic attack of the pendant phosphine on a cis carbonyl group, followed by ring opening and a 1,2-shift.

UR - https://digitalcommons.cedarville.edu/science_and_mathematics_publications/113

UR - http://pubs.acs.org/doi/abs/10.1021/om300092x

M3 - Article

VL - 31

JO - Organometallics

JF - Organometallics

ER -

Intramolecular Exchange of Coordinated and Dangling Phosphine Groups in Pentacarbonyl[(diphenylphosphino)(di-p-tolylphosphino)methane]tungsten(0)

Abstract

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