Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands

Constantina Papatriantafyllopoulou; Guillem Aromi; Anastasios J. Tasiopoulos; Vassilios Nastopoulos; Catherine P. Raptopoulou; Simon J. Teat; Albert Escuer; Spyros P. Perlepes

doi:10.1002/ejic.200700063

Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands

Constantina Papatriantafyllopoulou
, Guillem Aromi
, Anastasios J. Tasiopoulos
, Vassilios Nastopoulos
, Catherine P. Raptopoulou
, Simon J. Teat
, Albert Escuer
, Spyros P. Perlepes

University of Patras
University of Barcelona
University of Cyprus
Institute of Materials Science, Athens
Advanced Light Source, Berkeley

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

60 Citations (Scopus)

Abstract

The initial use of 2-pyridyl-substituted oximes [(py)C(R)-NOH; R = Me, Ph]/sulfate blend in nickel(II) chemistry has yielded a family of hexanuclear clusters. The syntheses, structures and magnetic properties are reported of [Ni₆(SO₄)₄-(OH){(py)C(Me)NO} ₃{(py)C(Me)NOH}₃(MeOH)₂(H₂O)] (1), [Ni₆(SO₄)₄(OH){(py)C(ph)NO}₃{(py) C(ph)NOH}₃(MeOH)₃] (2) and [Ni₆(SO ₄)₄(OH){(py)C(ph)NO}₃{(py)C(ph)NOH} ₃(H₂O)₃] (3), where (py)C(Me)NOH is methyl 2-pyridyl ketone oxime and (py)C(ph)NOH is phenyl 2-pyridyl ketone oxime. The hexanuclear molecules present in the three complexes have similar structures which contain the [Ni₆(μ₃-OH)(μ₃-SO ₄)₃(μ₃-ONR)₃]²⁺ core. The core consists of six Ni^II ions arranged as two parallel equilateral triangular subunits, one small (Ni⋯Ni ca. 3.3 Å) and the other larger (Ni⋯Ni ca. 6.0 Å). Characteristic IR bands are discussed in terms of the known structures of 1-3. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions. A simple 2-J model was found to be adequate to describe the similar thermal variation of the molar magnetic susceptibilities of 1 and 2.

Original language	English
Pages (from-to)	2761-2774
Number of pages	14
Journal	European Journal of Inorganic Chemistry
Issue number	18
DOIs	https://doi.org/10.1002/ejic.200700063
Publication status	Published - 2007
Externally published	Yes

Keywords

Magnetic properties
Nickel(II) clusters
Oxime complexes
Sulfato complexes

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10.1002/ejic.200700063

Cite this

Papatriantafyllopoulou, C., Aromi, G., Tasiopoulos, A. J., Nastopoulos, V., Raptopoulou, C. P., Teat, S. J., Escuer, A., & Perlepes, S. P. (2007). Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands. European Journal of Inorganic Chemistry, (18), 2761-2774. https://doi.org/10.1002/ejic.200700063

@article{5fd68b9e47ba415ea57d4678b315fa8d,

title = "Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands",

abstract = "The initial use of 2-pyridyl-substituted oximes [(py)C(R)-NOH; R = Me, Ph]/sulfate blend in nickel(II) chemistry has yielded a family of hexanuclear clusters. The syntheses, structures and magnetic properties are reported of [Ni6(SO4)4-(OH)\{(py)C(Me)NO\} 3\{(py)C(Me)NOH\}3(MeOH)2(H2O)] (1), [Ni6(SO4)4(OH)\{(py)C(ph)NO\}3\{(py) C(ph)NOH\}3(MeOH)3] (2) and [Ni6(SO 4)4(OH)\{(py)C(ph)NO\}3\{(py)C(ph)NOH\} 3(H2O)3] (3), where (py)C(Me)NOH is methyl 2-pyridyl ketone oxime and (py)C(ph)NOH is phenyl 2-pyridyl ketone oxime. The hexanuclear molecules present in the three complexes have similar structures which contain the [Ni6(μ3-OH)(μ3-SO 4)3(μ3-ONR)3]2+ core. The core consists of six NiII ions arranged as two parallel equilateral triangular subunits, one small (Ni⋯Ni ca. 3.3 {\AA}) and the other larger (Ni⋯Ni ca. 6.0 {\AA}). Characteristic IR bands are discussed in terms of the known structures of 1-3. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions. A simple 2-J model was found to be adequate to describe the similar thermal variation of the molar magnetic susceptibilities of 1 and 2.",

keywords = "Magnetic properties, Nickel(II) clusters, Oxime complexes, Sulfato complexes",

author = "Constantina Papatriantafyllopoulou and Guillem Aromi and Tasiopoulos, \{Anastasios J.\} and Vassilios Nastopoulos and Raptopoulou, \{Catherine P.\} and Teat, \{Simon J.\} and Albert Escuer and Perlepes, \{Spyros P.\}",

year = "2007",

doi = "10.1002/ejic.200700063",

language = "English",

pages = "2761--2774",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-VCH Verlag",

number = "18",

}

Papatriantafyllopoulou, C, Aromi, G, Tasiopoulos, AJ, Nastopoulos, V, Raptopoulou, CP, Teat, SJ, Escuer, A & Perlepes, SP 2007, 'Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands', European Journal of Inorganic Chemistry, no. 18, pp. 2761-2774. https://doi.org/10.1002/ejic.200700063

Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands. / Papatriantafyllopoulou, Constantina; Aromi, Guillem; Tasiopoulos, Anastasios J. et al.
In: European Journal of Inorganic Chemistry, No. 18, 2007, p. 2761-2774.

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

TY - JOUR

T1 - Use of the sulfato ligand in 3d-metal cluster chemistry

T2 - A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands

AU - Papatriantafyllopoulou, Constantina

AU - Aromi, Guillem

AU - Tasiopoulos, Anastasios J.

AU - Nastopoulos, Vassilios

AU - Raptopoulou, Catherine P.

AU - Teat, Simon J.

AU - Escuer, Albert

AU - Perlepes, Spyros P.

PY - 2007

Y1 - 2007

N2 - The initial use of 2-pyridyl-substituted oximes [(py)C(R)-NOH; R = Me, Ph]/sulfate blend in nickel(II) chemistry has yielded a family of hexanuclear clusters. The syntheses, structures and magnetic properties are reported of [Ni6(SO4)4-(OH){(py)C(Me)NO} 3{(py)C(Me)NOH}3(MeOH)2(H2O)] (1), [Ni6(SO4)4(OH){(py)C(ph)NO}3{(py) C(ph)NOH}3(MeOH)3] (2) and [Ni6(SO 4)4(OH){(py)C(ph)NO}3{(py)C(ph)NOH} 3(H2O)3] (3), where (py)C(Me)NOH is methyl 2-pyridyl ketone oxime and (py)C(ph)NOH is phenyl 2-pyridyl ketone oxime. The hexanuclear molecules present in the three complexes have similar structures which contain the [Ni6(μ3-OH)(μ3-SO 4)3(μ3-ONR)3]2+ core. The core consists of six NiII ions arranged as two parallel equilateral triangular subunits, one small (Ni⋯Ni ca. 3.3 Å) and the other larger (Ni⋯Ni ca. 6.0 Å). Characteristic IR bands are discussed in terms of the known structures of 1-3. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions. A simple 2-J model was found to be adequate to describe the similar thermal variation of the molar magnetic susceptibilities of 1 and 2.

AB - The initial use of 2-pyridyl-substituted oximes [(py)C(R)-NOH; R = Me, Ph]/sulfate blend in nickel(II) chemistry has yielded a family of hexanuclear clusters. The syntheses, structures and magnetic properties are reported of [Ni6(SO4)4-(OH){(py)C(Me)NO} 3{(py)C(Me)NOH}3(MeOH)2(H2O)] (1), [Ni6(SO4)4(OH){(py)C(ph)NO}3{(py) C(ph)NOH}3(MeOH)3] (2) and [Ni6(SO 4)4(OH){(py)C(ph)NO}3{(py)C(ph)NOH} 3(H2O)3] (3), where (py)C(Me)NOH is methyl 2-pyridyl ketone oxime and (py)C(ph)NOH is phenyl 2-pyridyl ketone oxime. The hexanuclear molecules present in the three complexes have similar structures which contain the [Ni6(μ3-OH)(μ3-SO 4)3(μ3-ONR)3]2+ core. The core consists of six NiII ions arranged as two parallel equilateral triangular subunits, one small (Ni⋯Ni ca. 3.3 Å) and the other larger (Ni⋯Ni ca. 6.0 Å). Characteristic IR bands are discussed in terms of the known structures of 1-3. The magnetic properties of 1 and 2 have been studied by variable-temperature dc magnetic susceptibility techniques which indicate antiferromagnetic interactions. A simple 2-J model was found to be adequate to describe the similar thermal variation of the molar magnetic susceptibilities of 1 and 2.

KW - Magnetic properties

KW - Nickel(II) clusters

KW - Oxime complexes

KW - Sulfato complexes

UR - https://www.scopus.com/pages/publications/34447559772

U2 - 10.1002/ejic.200700063

DO - 10.1002/ejic.200700063

M3 - Article

SN - 1434-1948

SP - 2761

EP - 2774

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 18

ER -

Use of the sulfato ligand in 3d-metal cluster chemistry: A family of hexanuclear nickel(II) complexes with 2-pyridyl-substituted oxime ligands

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Keywords

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