Tris(pyrazolyl)phosphine oxides. Synthesis and coordination chemistry with copper(I)

Cornelis G.J. Tazelaar; Volodymyr Lyaskovskyy; Tom Van Dijk; Daniël L.J. Broere; Ludo A. Kolfschoten; Rima Osman Hassan Khiar; Martin Lutz; J. Chris Slootweg; Koop Lammertsma

doi:10.1021/om300051f

Tris(pyrazolyl)phosphine oxides. Synthesis and coordination chemistry with copper(I)

Cornelis G.J. Tazelaar, Volodymyr Lyaskovskyy, Tom Van Dijk, Daniël L.J. Broere, Ludo A. Kolfschoten, Rima Osman Hassan Khiar, Martin Lutz, J. Chris Slootweg, Koop Lammertsma

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

9 Citations (Scopus)

Abstract

A set of substituted tris(pyrazolyl)phosphine oxides (OP(pz ^x) ₃) has been prepared in high yield and applied as neutral scorpion-type ligands. The P apex provides a convenient spectroscopic handle. Substitution at the 3-position of the pyrazolyl ring influences the steric demands of the ligand, while substitution at the 5-position enhances the stability. Copper(I) acetonitrile complexes of the OP(pz ^x) ₃ ligands were prepared and tested in ligand exchange reactions with PPh ₃ and CO. The v(CO) values of the carbonyl complexes demonstrate the electron-withdrawing properties of the ligands. These observations show that OP(pz ^x) ₃ ligands are an interesting extension of the widely used scorpion-type ligands.

Original language	English
Pages (from-to)	3308-3315
Number of pages	8
Journal	Organometallics
Volume	31
Issue number	8
DOIs	https://doi.org/10.1021/om300051f
Publication status	Published - 23 Apr 2012
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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10.1021/om300051f

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title = "Tris(pyrazolyl)phosphine oxides. Synthesis and coordination chemistry with copper(I)",

abstract = "A set of substituted tris(pyrazolyl)phosphine oxides (OP(pz x) 3) has been prepared in high yield and applied as neutral scorpion-type ligands. The P apex provides a convenient spectroscopic handle. Substitution at the 3-position of the pyrazolyl ring influences the steric demands of the ligand, while substitution at the 5-position enhances the stability. Copper(I) acetonitrile complexes of the OP(pz x) 3 ligands were prepared and tested in ligand exchange reactions with PPh 3 and CO. The v(CO) values of the carbonyl complexes demonstrate the electron-withdrawing properties of the ligands. These observations show that OP(pz x) 3 ligands are an interesting extension of the widely used scorpion-type ligands.",

author = "Tazelaar, {Cornelis G.J.} and Volodymyr Lyaskovskyy and Dijk, {Tom Van} and Broere, {Dani{\"e}l L.J.} and Kolfschoten, {Ludo A.} and Khiar, {Rima Osman Hassan} and Martin Lutz and Slootweg, {J. Chris} and Koop Lammertsma",

year = "2012",

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doi = "10.1021/om300051f",

language = "English",

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journal = "Organometallics",

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TY - JOUR

T1 - Tris(pyrazolyl)phosphine oxides. Synthesis and coordination chemistry with copper(I)

AU - Tazelaar, Cornelis G.J.

AU - Lyaskovskyy, Volodymyr

AU - Dijk, Tom Van

AU - Broere, Daniël L.J.

AU - Kolfschoten, Ludo A.

AU - Khiar, Rima Osman Hassan

AU - Lutz, Martin

AU - Slootweg, J. Chris

AU - Lammertsma, Koop

PY - 2012/4/23

Y1 - 2012/4/23

N2 - A set of substituted tris(pyrazolyl)phosphine oxides (OP(pz x) 3) has been prepared in high yield and applied as neutral scorpion-type ligands. The P apex provides a convenient spectroscopic handle. Substitution at the 3-position of the pyrazolyl ring influences the steric demands of the ligand, while substitution at the 5-position enhances the stability. Copper(I) acetonitrile complexes of the OP(pz x) 3 ligands were prepared and tested in ligand exchange reactions with PPh 3 and CO. The v(CO) values of the carbonyl complexes demonstrate the electron-withdrawing properties of the ligands. These observations show that OP(pz x) 3 ligands are an interesting extension of the widely used scorpion-type ligands.

AB - A set of substituted tris(pyrazolyl)phosphine oxides (OP(pz x) 3) has been prepared in high yield and applied as neutral scorpion-type ligands. The P apex provides a convenient spectroscopic handle. Substitution at the 3-position of the pyrazolyl ring influences the steric demands of the ligand, while substitution at the 5-position enhances the stability. Copper(I) acetonitrile complexes of the OP(pz x) 3 ligands were prepared and tested in ligand exchange reactions with PPh 3 and CO. The v(CO) values of the carbonyl complexes demonstrate the electron-withdrawing properties of the ligands. These observations show that OP(pz x) 3 ligands are an interesting extension of the widely used scorpion-type ligands.

UR - http://www.scopus.com/inward/record.url?scp=84860321994&partnerID=8YFLogxK

U2 - 10.1021/om300051f

DO - 10.1021/om300051f

M3 - Article

AN - SCOPUS:84860321994

SN - 0276-7333

VL - 31

SP - 3308

EP - 3315

JO - Organometallics

JF - Organometallics

IS - 8

ER -

Tris(pyrazolyl)phosphine oxides. Synthesis and coordination chemistry with copper(I)

Abstract

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