Palladium co-ordination chemistry of β-diimines: A preparative and structural comparison with α-diimines

Elaine K. Cope-Eatough; Francis S. Mair; Robin G. Pritchard; John E. Warren; Rebecca J. Woods

doi:10.1016/S0277-5387(03)00123-2

Palladium co-ordination chemistry of β-diimines: A preparative and structural comparison with α-diimines

Elaine K. Cope-Eatough, Francis S. Mair, Robin G. Pritchard, John E. Warren, Rebecca J. Woods

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

Abstract

The co-ordination chemistry of β-diimines has been found to be markedly different from otherwise identical α-diimines, it being significantly more difficult to prepare stable complexes of a variety of transition metal species. Where such species were preparable, the ligands were found to be incapable of stabilising metal-alkyl bonds, in marked contrast to their α-diimine counterparts. These differences are ascribed to a combination of steric, entropic and electronic factors. Crystal structures of 2-Pri-C6H4NCMeCMe2C-MeN-2- Pri-C6H4, 2,6-Pr2i-C6H3NCMeCMeN-2- Pri-C6H4, [2-Pri-C6H4NCMeCMe2CMeN-2- Pri-C6H4PdCl2] and [2,6-Pr2i-C6H3NCMeCMeN-2, 6-Pri-C6H3PdCl2] are reported. A partial structure of [2,6-Pr2i-C6H3NCMe CMe2CMeN-2,6-Pri-C6H3 Pd2Cl4] is also briefly discussed. © 2003 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	1447-1454
Number of pages	7
Journal	Polyhedron
Volume	22
Issue number	11
DOIs	https://doi.org/10.1016/S0277-5387(03)00123-2
Publication status	Published - 1 Jun 2003

Keywords

Chelate complexes
Diazadiene
Diimine
Palladium

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10.1016/S0277-5387(03)00123-2

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@article{a173f05f84e34744bca8e77326d96a64,

title = "Palladium co-ordination chemistry of β-diimines: A preparative and structural comparison with α-diimines",

abstract = "The co-ordination chemistry of β-diimines has been found to be markedly different from otherwise identical α-diimines, it being significantly more difficult to prepare stable complexes of a variety of transition metal species. Where such species were preparable, the ligands were found to be incapable of stabilising metal-alkyl bonds, in marked contrast to their α-diimine counterparts. These differences are ascribed to a combination of steric, entropic and electronic factors. Crystal structures of 2-Pri-C6H4NCMeCMe2C-MeN-2- Pri-C6H4, 2,6-Pr2i-C6H3NCMeCMeN-2- Pri-C6H4, [2-Pri-C6H4NCMeCMe2CMeN-2- Pri-C6H4PdCl2] and [2,6-Pr2i-C6H3NCMeCMeN-2, 6-Pri-C6H3PdCl2] are reported. A partial structure of [2,6-Pr2i-C6H3NCMe CMe2CMeN-2,6-Pri-C6H3 Pd2Cl4] is also briefly discussed. {\textcopyright} 2003 Elsevier Science Ltd. All rights reserved.",

keywords = "Chelate complexes, Diazadiene, Diimine, Palladium",

author = "Cope-Eatough, {Elaine K.} and Mair, {Francis S.} and Pritchard, {Robin G.} and Warren, {John E.} and Woods, {Rebecca J.}",

note = "11",

year = "2003",

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day = "1",

doi = "10.1016/S0277-5387(03)00123-2",

language = "English",

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pages = "1447--1454",

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TY - JOUR

T1 - Palladium co-ordination chemistry of β-diimines: A preparative and structural comparison with α-diimines

AU - Cope-Eatough, Elaine K.

AU - Mair, Francis S.

AU - Pritchard, Robin G.

AU - Warren, John E.

AU - Woods, Rebecca J.

N1 - 11

PY - 2003/6/1

Y1 - 2003/6/1

N2 - The co-ordination chemistry of β-diimines has been found to be markedly different from otherwise identical α-diimines, it being significantly more difficult to prepare stable complexes of a variety of transition metal species. Where such species were preparable, the ligands were found to be incapable of stabilising metal-alkyl bonds, in marked contrast to their α-diimine counterparts. These differences are ascribed to a combination of steric, entropic and electronic factors. Crystal structures of 2-Pri-C6H4NCMeCMe2C-MeN-2- Pri-C6H4, 2,6-Pr2i-C6H3NCMeCMeN-2- Pri-C6H4, [2-Pri-C6H4NCMeCMe2CMeN-2- Pri-C6H4PdCl2] and [2,6-Pr2i-C6H3NCMeCMeN-2, 6-Pri-C6H3PdCl2] are reported. A partial structure of [2,6-Pr2i-C6H3NCMe CMe2CMeN-2,6-Pri-C6H3 Pd2Cl4] is also briefly discussed. © 2003 Elsevier Science Ltd. All rights reserved.

AB - The co-ordination chemistry of β-diimines has been found to be markedly different from otherwise identical α-diimines, it being significantly more difficult to prepare stable complexes of a variety of transition metal species. Where such species were preparable, the ligands were found to be incapable of stabilising metal-alkyl bonds, in marked contrast to their α-diimine counterparts. These differences are ascribed to a combination of steric, entropic and electronic factors. Crystal structures of 2-Pri-C6H4NCMeCMe2C-MeN-2- Pri-C6H4, 2,6-Pr2i-C6H3NCMeCMeN-2- Pri-C6H4, [2-Pri-C6H4NCMeCMe2CMeN-2- Pri-C6H4PdCl2] and [2,6-Pr2i-C6H3NCMeCMeN-2, 6-Pri-C6H3PdCl2] are reported. A partial structure of [2,6-Pr2i-C6H3NCMe CMe2CMeN-2,6-Pri-C6H3 Pd2Cl4] is also briefly discussed. © 2003 Elsevier Science Ltd. All rights reserved.

KW - Chelate complexes

KW - Diazadiene

KW - Diimine

KW - Palladium

U2 - 10.1016/S0277-5387(03)00123-2

DO - 10.1016/S0277-5387(03)00123-2

M3 - Article

VL - 22

SP - 1447

EP - 1454

JO - Polyhedron

JF - Polyhedron

IS - 11

ER -

Palladium co-ordination chemistry of β-diimines: A preparative and structural comparison with α-diimines

Abstract

Keywords

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