Kinetics Studies of Ligand Dissociation from Bis-Substituted Derivatives of Hexacarbonylchromium, Trans-Cr(CO)4L2 (L = P(C4H9)3, P(OC6H5)3, P(OCH3)3, P(C6H5)3, And as(C6H5)3)

Michael J. Wovkulich; Samuel J. Feinberg; Jim D. Atwood

doi:10.1021/ic50211a026

Kinetics Studies of Ligand Dissociation from Bis-Substituted Derivatives of Hexacarbonylchromium, Trans-Cr(CO)₄L₂ (L = P(C₄H₉)₃, P(OC₆H₅)₃, P(OCH₃)₃, P(C₆H₅)₃, And as(C₆H₅)₃)

Michael J. Wovkulich
, Samuel J. Feinberg
, Jim D. Atwood

Chemistry

University at Buffalo

SUNY Buffalo

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

22 Scopus citations

Abstract

The kinetics of ligand replacement on irani-Cr(CO)₄L₂ for L = P(OC₆H₅)₃, P(C₄H₉)₃, and P(OCH₃)₃ by CO have been studied between 100 and 140 °C in decane solution. The reactions proceed by rate-determining dissociation of the ligand L. Qualitative data are also reported for Cr(CO)₄(P(C₆H₅)₃)₂ and Cr(CO)₄(As(C₆H₅)₃)₂. The ordering of dissociation rates As(C₆H₅)₃ > P(C₆H₅)₃ > P(C₄H₉)₃ > P(OC₆H₅)₃ > CO > P(OCH₃)₃ is consistent with a very strong dependence of the-bonding capability of the ligand, in contrast to dissociations from Cr(CO)5L. Activation parameters are presented for dissociations of P(OC₆H₅)₃, P(C₄H₉)₃, and P(OCH₃)_3..

Original language	English
Pages (from-to)	2608-2611
Number of pages	4
Journal	Inorganic Chemistry
Volume	19
Issue number	9
DOIs	https://doi.org/10.1021/ic50211a026
State	Published - 1980

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@article{b43c32ec580e40ae80afe8e82a0c8bf4,

title = "Kinetics Studies of Ligand Dissociation from Bis-Substituted Derivatives of Hexacarbonylchromium, Trans-Cr(CO)4L2 (L = P(C4H9)3, P(OC6H5)3, P(OCH3)3, P(C6H5)3, And as(C6H5)3)",

abstract = "The kinetics of ligand replacement on irani-Cr(CO)4L2 for L = P(OC6H5)3, P(C4H9)3, and P(OCH3)3 by CO have been studied between 100 and 140 °C in decane solution. The reactions proceed by rate-determining dissociation of the ligand L. Qualitative data are also reported for Cr(CO)4(P(C6H5)3)2 and Cr(CO)4(As(C6H5)3)2. The ordering of dissociation rates As(C6H5)3 > P(C6H5)3 > P(C4H9)3 > P(OC6H5)3 > CO > P(OCH3)3 is consistent with a very strong dependence of the-bonding capability of the ligand, in contrast to dissociations from Cr(CO)5L. Activation parameters are presented for dissociations of P(OC6H5)3, P(C4H9)3, and P(OCH3)3..",

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

year = "1980",

doi = "10.1021/ic50211a026",

language = "English",

volume = "19",

pages = "2608--2611",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "9",

}

TY - JOUR

T1 - Kinetics Studies of Ligand Dissociation from Bis-Substituted Derivatives of Hexacarbonylchromium, Trans-Cr(CO)4L2 (L = P(C4H9)3, P(OC6H5)3, P(OCH3)3, P(C6H5)3, And as(C6H5)3)

AU - Wovkulich, Michael J.

AU - Feinberg, Samuel J.

AU - Atwood, Jim D.

PY - 1980

Y1 - 1980

N2 - The kinetics of ligand replacement on irani-Cr(CO)4L2 for L = P(OC6H5)3, P(C4H9)3, and P(OCH3)3 by CO have been studied between 100 and 140 °C in decane solution. The reactions proceed by rate-determining dissociation of the ligand L. Qualitative data are also reported for Cr(CO)4(P(C6H5)3)2 and Cr(CO)4(As(C6H5)3)2. The ordering of dissociation rates As(C6H5)3 > P(C6H5)3 > P(C4H9)3 > P(OC6H5)3 > CO > P(OCH3)3 is consistent with a very strong dependence of the-bonding capability of the ligand, in contrast to dissociations from Cr(CO)5L. Activation parameters are presented for dissociations of P(OC6H5)3, P(C4H9)3, and P(OCH3)3..

AB - The kinetics of ligand replacement on irani-Cr(CO)4L2 for L = P(OC6H5)3, P(C4H9)3, and P(OCH3)3 by CO have been studied between 100 and 140 °C in decane solution. The reactions proceed by rate-determining dissociation of the ligand L. Qualitative data are also reported for Cr(CO)4(P(C6H5)3)2 and Cr(CO)4(As(C6H5)3)2. The ordering of dissociation rates As(C6H5)3 > P(C6H5)3 > P(C4H9)3 > P(OC6H5)3 > CO > P(OCH3)3 is consistent with a very strong dependence of the-bonding capability of the ligand, in contrast to dissociations from Cr(CO)5L. Activation parameters are presented for dissociations of P(OC6H5)3, P(C4H9)3, and P(OCH3)3..

UR - https://www.scopus.com/pages/publications/4243718598

U2 - 10.1021/ic50211a026

DO - 10.1021/ic50211a026

M3 - Article

SN - 0020-1669

VL - 19

SP - 2608

EP - 2611

JO - Inorganic Chemistry

JF - Inorganic Chemistry

IS - 9

ER -

Kinetics Studies of Ligand Dissociation from Bis-Substituted Derivatives of Hexacarbonylchromium, Trans-Cr(CO)₄L₂ (L = P(C₄H₉)₃, P(OC₆H₅)₃, P(OCH₃)₃, P(C₆H₅)₃, And as(C₆H₅)₃)

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