Synthesis and reactivity of a transition metal complex containing exclusively TEMPO ligands: Ni(η2-TEMPO)2

Derek Isrow; Burjor Captain

doi:10.1021/ic2007342

Synthesis and reactivity of a transition metal complex containing exclusively TEMPO ligands: Ni(η²-TEMPO)₂

Derek Isrow, Burjor Captain

Chemistry

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

17 Scopus citations

Abstract

The reaction of Ni(COD)₂ with two equivalents of the TEMPO radical at 68 °C affords the 16 e^- "bow-tie" complex Ni(η²-TEMPO)₂, 1, in 78% yield. Compound 1 reacts with tert-butyl isocyanide and phenylacetylene at room temperature to yield the 16 e^- distorted square planar nickel complexes Ni(η²- TEMPO)(η¹-TEMPO)(CN^tBu), 2, and Ni(η²- TEMPO)(η¹-TEMPOH)(CCPh), 4, respectively. The facile reactivity of 1 is aided by the transition of the TEMPO ligand from an η² to η¹ binding mode. Complex 4 is an unusual example of hydrogen atom transfer from phenylacetylene to a coordinated TEMPO ligand.

Original language	English (US)
Pages (from-to)	5864-5866
Number of pages	3
Journal	Inorganic Chemistry
Volume	50
Issue number	13
DOIs	https://doi.org/10.1021/ic2007342
State	Published - Jul 4 2011

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

Access to Document

10.1021/ic2007342

Fingerprint Dive into the research topics of 'Synthesis and reactivity of a transition metal complex containing exclusively TEMPO ligands: Ni(η<sup>2</sup>-TEMPO)<sub>2</sub>'. Together they form a unique fingerprint.

Cite this

@article{c2c4c37cfc1e4ad8888154c2a71b5169,

title = "Synthesis and reactivity of a transition metal complex containing exclusively TEMPO ligands: Ni(η2-TEMPO)2",

abstract = "The reaction of Ni(COD)2 with two equivalents of the TEMPO radical at 68 °C affords the 16 e- {"}bow-tie{"} complex Ni(η2-TEMPO)2, 1, in 78% yield. Compound 1 reacts with tert-butyl isocyanide and phenylacetylene at room temperature to yield the 16 e- distorted square planar nickel complexes Ni(η2- TEMPO)(η1-TEMPO)(CNtBu), 2, and Ni(η2- TEMPO)(η1-TEMPOH)(CCPh), 4, respectively. The facile reactivity of 1 is aided by the transition of the TEMPO ligand from an η2 to η1 binding mode. Complex 4 is an unusual example of hydrogen atom transfer from phenylacetylene to a coordinated TEMPO ligand.",

author = "Derek Isrow and Burjor Captain",

year = "2011",

month = jul,

day = "4",

doi = "10.1021/ic2007342",

language = "English (US)",

volume = "50",

pages = "5864--5866",

journal = "Inorganic Chemistry",

issn = "0020-1669",

publisher = "American Chemical Society",

number = "13",

}

TY - JOUR

T1 - Synthesis and reactivity of a transition metal complex containing exclusively TEMPO ligands

T2 - Ni(η2-TEMPO)2

AU - Isrow, Derek

AU - Captain, Burjor

PY - 2011/7/4

Y1 - 2011/7/4

N2 - The reaction of Ni(COD)2 with two equivalents of the TEMPO radical at 68 °C affords the 16 e- "bow-tie" complex Ni(η2-TEMPO)2, 1, in 78% yield. Compound 1 reacts with tert-butyl isocyanide and phenylacetylene at room temperature to yield the 16 e- distorted square planar nickel complexes Ni(η2- TEMPO)(η1-TEMPO)(CNtBu), 2, and Ni(η2- TEMPO)(η1-TEMPOH)(CCPh), 4, respectively. The facile reactivity of 1 is aided by the transition of the TEMPO ligand from an η2 to η1 binding mode. Complex 4 is an unusual example of hydrogen atom transfer from phenylacetylene to a coordinated TEMPO ligand.

AB - The reaction of Ni(COD)2 with two equivalents of the TEMPO radical at 68 °C affords the 16 e- "bow-tie" complex Ni(η2-TEMPO)2, 1, in 78% yield. Compound 1 reacts with tert-butyl isocyanide and phenylacetylene at room temperature to yield the 16 e- distorted square planar nickel complexes Ni(η2- TEMPO)(η1-TEMPO)(CNtBu), 2, and Ni(η2- TEMPO)(η1-TEMPOH)(CCPh), 4, respectively. The facile reactivity of 1 is aided by the transition of the TEMPO ligand from an η2 to η1 binding mode. Complex 4 is an unusual example of hydrogen atom transfer from phenylacetylene to a coordinated TEMPO ligand.

UR - http://www.scopus.com/inward/record.url?scp=79959735671&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79959735671&partnerID=8YFLogxK

U2 - 10.1021/ic2007342

DO - 10.1021/ic2007342

M3 - Article

C2 - 21591738

AN - SCOPUS:79959735671

VL - 50

SP - 5864

EP - 5866

JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 13