Triangular Ni(II) complexes from the use of 2-pyridyl oximes

Constantinos G. Efthymiou; Catherine P. Raptopoulou; Aris Terzis; Spyros P. Perlepes; Albert Escuer; Constantina Papatriantafyllopoulou

doi:10.1016/j.poly.2009.08.009

Triangular Ni(II) complexes from the use of 2-pyridyl oximes

Constantinos G. Efthymiou, Catherine P. Raptopoulou, Aris Terzis, Spyros P. Perlepes, Albert Escuer, Constantina Papatriantafyllopoulou

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

16 Citations (Scopus)

Abstract

The reactions of representative 2-pyridyl oximes with Ni^II salts in the presence of a base have been investigated. The synthetic study has led to the new triangular complexes [Νi₃(ppko)₆]·2H₂O·0.5E tOH·MeOH (1·2H₂O·0.5EtOH·MeOH), [Νi₃(mpko)₃(HCO₂)₂(mpkoH) ₂](ClO₄) (2) and [Νi₃(ppko)₃(HCO₂)₂(ppkoH) ₂](ClO₄) (3), where ppko^- is the anion of phenyl(2-pyridyl)ketone oxime and mpko^- is the anion of methyl(2-pyridyl)ketone oxime. The structures of compounds 1 and 2 have been determined by single crystal X-ray diffraction. The ppko^- ligand in 1 adopts four different coordination modes including the unique N_pyridylO_oximate chelating one which gives rise to a 6-membered chelating ring, while the neutral and the deprotonated oxime ligands in 2 adopt three different coordination modes. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions.

Original language	English
Pages (from-to)	627-633
Number of pages	7
Journal	Polyhedron
Volume	29
Issue number	1
DOIs	https://doi.org/10.1016/j.poly.2009.08.009
Publication status	Published - 13 Jan 2010
Externally published	Yes

Keywords

2-Pyridyl oximes
Crystal structures
Magnetic properties
Nickel(II) clusters
Triangular nickel(II) complexes

Access to Document

10.1016/j.poly.2009.08.009

Cite this

@article{ad861518116947e49ada535de14ef438,

title = "Triangular Ni(II) complexes from the use of 2-pyridyl oximes",

abstract = "The reactions of representative 2-pyridyl oximes with NiII salts in the presence of a base have been investigated. The synthetic study has led to the new triangular complexes [Νi3(ppko)6]·2H2O·0.5E tOH·MeOH (1·2H2O·0.5EtOH·MeOH), [Νi3(mpko)3(HCO2)2(mpkoH) 2](ClO4) (2) and [Νi3(ppko)3(HCO2)2(ppkoH) 2](ClO4) (3), where ppko- is the anion of phenyl(2-pyridyl)ketone oxime and mpko- is the anion of methyl(2-pyridyl)ketone oxime. The structures of compounds 1 and 2 have been determined by single crystal X-ray diffraction. The ppko- ligand in 1 adopts four different coordination modes including the unique NpyridylOoximate chelating one which gives rise to a 6-membered chelating ring, while the neutral and the deprotonated oxime ligands in 2 adopt three different coordination modes. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions.",

keywords = "2-Pyridyl oximes, Crystal structures, Magnetic properties, Nickel(II) clusters, Triangular nickel(II) complexes",

author = "Efthymiou, \{Constantinos G.\} and Raptopoulou, \{Catherine P.\} and Aris Terzis and Perlepes, \{Spyros P.\} and Albert Escuer and Constantina Papatriantafyllopoulou",

year = "2010",

month = jan,

day = "13",

doi = "10.1016/j.poly.2009.08.009",

language = "English",

volume = "29",

pages = "627--633",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier Ltd",

number = "1",

}

TY - JOUR

T1 - Triangular Ni(II) complexes from the use of 2-pyridyl oximes

AU - Efthymiou, Constantinos G.

AU - Raptopoulou, Catherine P.

AU - Terzis, Aris

AU - Perlepes, Spyros P.

AU - Escuer, Albert

AU - Papatriantafyllopoulou, Constantina

PY - 2010/1/13

Y1 - 2010/1/13

N2 - The reactions of representative 2-pyridyl oximes with NiII salts in the presence of a base have been investigated. The synthetic study has led to the new triangular complexes [Νi3(ppko)6]·2H2O·0.5E tOH·MeOH (1·2H2O·0.5EtOH·MeOH), [Νi3(mpko)3(HCO2)2(mpkoH) 2](ClO4) (2) and [Νi3(ppko)3(HCO2)2(ppkoH) 2](ClO4) (3), where ppko- is the anion of phenyl(2-pyridyl)ketone oxime and mpko- is the anion of methyl(2-pyridyl)ketone oxime. The structures of compounds 1 and 2 have been determined by single crystal X-ray diffraction. The ppko- ligand in 1 adopts four different coordination modes including the unique NpyridylOoximate chelating one which gives rise to a 6-membered chelating ring, while the neutral and the deprotonated oxime ligands in 2 adopt three different coordination modes. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions.

AB - The reactions of representative 2-pyridyl oximes with NiII salts in the presence of a base have been investigated. The synthetic study has led to the new triangular complexes [Νi3(ppko)6]·2H2O·0.5E tOH·MeOH (1·2H2O·0.5EtOH·MeOH), [Νi3(mpko)3(HCO2)2(mpkoH) 2](ClO4) (2) and [Νi3(ppko)3(HCO2)2(ppkoH) 2](ClO4) (3), where ppko- is the anion of phenyl(2-pyridyl)ketone oxime and mpko- is the anion of methyl(2-pyridyl)ketone oxime. The structures of compounds 1 and 2 have been determined by single crystal X-ray diffraction. The ppko- ligand in 1 adopts four different coordination modes including the unique NpyridylOoximate chelating one which gives rise to a 6-membered chelating ring, while the neutral and the deprotonated oxime ligands in 2 adopt three different coordination modes. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions.

KW - 2-Pyridyl oximes

KW - Crystal structures

KW - Magnetic properties

KW - Nickel(II) clusters

KW - Triangular nickel(II) complexes

UR - https://www.scopus.com/pages/publications/78149322007

U2 - 10.1016/j.poly.2009.08.009

DO - 10.1016/j.poly.2009.08.009

M3 - Article

SN - 0277-5387

VL - 29

SP - 627

EP - 633

JO - Polyhedron

JF - Polyhedron

IS - 1

ER -

Triangular Ni(II) complexes from the use of 2-pyridyl oximes

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this