Ligand dissociation from mono-substituted derivatives of hexacarbonylchromium (Cr(CO)5L, L P(C6H5)3, P(C4H9)3, P(OCH3)3, P(OC6H5)3, and As(C6H5)3)

Michael J. Wovkulich; Jim D. Atwood

doi:10.1016/S0022-328X(00)94365-1

Ligand dissociation from mono-substituted derivatives of hexacarbonylchromium (Cr(CO)₅L, L P(C₆H₅)₃, P(C₄H₉)₃, P(OCH₃)₃, P(OC₆H₅)₃, and As(C₆H₅)₃)

Michael J. Wovkulich
, Jim D. Atwood

Chemistry

SUNY Buffalo

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

35 Scopus citations

Abstract

The rates of dissociation of the unique ligand from Cr(CO)₅L have been determined from L P(C₆H₅)₃, P(OC₆H₅)₃, P(OCH₃)₃, and As(C₆H₅)₃ by reaction with CO. The reactions were investigated from 80140°C and activation parameters were determined. The rate data were fully consistent with rate-determining dissociation of the ligand L. The order of ligand lability is As(C₆H₅)₃ > P(C₆H₅)₃ > P(OC₆H₅)₃ > P(OCH₃)₃. For L P(C₄H₉)₃ an equilibrium was observed and the equilibrium constant evaluated at 140 and 170°C. The equilibrium greatly favors Cr(CO)₅P(C₄H₉)₃ as the product. These studies allow the ligand binding to be compared quantitatively for these complexes. An activation of the CrP bond by room light has been noted.

Original language	English
Pages (from-to)	77-89
Number of pages	13
Journal	Journal of Organometallic Chemistry
Volume	184
Issue number	1
DOIs	https://doi.org/10.1016/S0022-328X(00)94365-1
State	Published - Jan 8 1980

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@article{e37c4e53ad8d42918c885a27a4ef59ff,

title = "Ligand dissociation from mono-substituted derivatives of hexacarbonylchromium (Cr(CO)5L, L P(C6H5)3, P(C4H9)3, P(OCH3)3, P(OC6H5)3, and As(C6H5)3)",

abstract = "The rates of dissociation of the unique ligand from Cr(CO)5L have been determined from L P(C6H5)3, P(OC6H5)3, P(OCH3)3, and As(C6H5)3 by reaction with CO. The reactions were investigated from 80140°C and activation parameters were determined. The rate data were fully consistent with rate-determining dissociation of the ligand L. The order of ligand lability is As(C6H5)3 > P(C6H5)3 > P(OC6H5)3 > P(OCH3)3. For L P(C4H9)3 an equilibrium was observed and the equilibrium constant evaluated at 140 and 170°C. The equilibrium greatly favors Cr(CO)5P(C4H9)3 as the product. These studies allow the ligand binding to be compared quantitatively for these complexes. An activation of the CrP bond by room light has been noted.",

author = "Wovkulich, \{Michael J.\} and Atwood, \{Jim D.\}",

year = "1980",

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doi = "10.1016/S0022-328X(00)94365-1",

language = "English",

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pages = "77--89",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Ligand dissociation from mono-substituted derivatives of hexacarbonylchromium (Cr(CO)5L, L P(C6H5)3, P(C4H9)3, P(OCH3)3, P(OC6H5)3, and As(C6H5)3)

AU - Wovkulich, Michael J.

AU - Atwood, Jim D.

PY - 1980/1/8

Y1 - 1980/1/8

N2 - The rates of dissociation of the unique ligand from Cr(CO)5L have been determined from L P(C6H5)3, P(OC6H5)3, P(OCH3)3, and As(C6H5)3 by reaction with CO. The reactions were investigated from 80140°C and activation parameters were determined. The rate data were fully consistent with rate-determining dissociation of the ligand L. The order of ligand lability is As(C6H5)3 > P(C6H5)3 > P(OC6H5)3 > P(OCH3)3. For L P(C4H9)3 an equilibrium was observed and the equilibrium constant evaluated at 140 and 170°C. The equilibrium greatly favors Cr(CO)5P(C4H9)3 as the product. These studies allow the ligand binding to be compared quantitatively for these complexes. An activation of the CrP bond by room light has been noted.

AB - The rates of dissociation of the unique ligand from Cr(CO)5L have been determined from L P(C6H5)3, P(OC6H5)3, P(OCH3)3, and As(C6H5)3 by reaction with CO. The reactions were investigated from 80140°C and activation parameters were determined. The rate data were fully consistent with rate-determining dissociation of the ligand L. The order of ligand lability is As(C6H5)3 > P(C6H5)3 > P(OC6H5)3 > P(OCH3)3. For L P(C4H9)3 an equilibrium was observed and the equilibrium constant evaluated at 140 and 170°C. The equilibrium greatly favors Cr(CO)5P(C4H9)3 as the product. These studies allow the ligand binding to be compared quantitatively for these complexes. An activation of the CrP bond by room light has been noted.

UR - https://www.scopus.com/pages/publications/0039886330

U2 - 10.1016/S0022-328X(00)94365-1

DO - 10.1016/S0022-328X(00)94365-1

M3 - Article

AN - SCOPUS:0039886330

SN - 0022-328X

VL - 184

SP - 77

EP - 89

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 1

ER -

Ligand dissociation from mono-substituted derivatives of hexacarbonylchromium (Cr(CO)₅L, L P(C₆H₅)₃, P(C₄H₉)₃, P(OCH₃)₃, P(OC₆H₅)₃, and As(C₆H₅)₃)

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