Synthesis, structure, and magnetic properties of dicopper and tricobalt complexes based on N-(2-pyridylmethyl)iminodiethanol

Jong Won Shin; Ah Rim Jeong; Shinya Hayami; Dohyun Moon; Kil Sik Min

doi:10.1039/c5qi00088b

Synthesis, structure, and magnetic properties of dicopper and tricobalt complexes based on N-(2-pyridylmethyl)iminodiethanol

Jong Won Shin, Ah Rim Jeong, Shinya Hayami, Dohyun Moon, Kil Sik Min

Department of Chemical Science Education

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

4 Scopus citations

Abstract

Dinuclear [Cu(H₂pmide)(NO₃)Cu(Hpmide)](NO₃)₂ (1) and trinuclear [(pmide)₂Co₃(CH₃CO₂)₂(NCS)₂]·4CH₃OH (2) coordination complexes have been prepared by the reaction of the tetradentate H₂pmide ligand and Cu(NO₃)₂·3H₂O or Co(CH₃CO₂)₂·4H₂O/NaNCS in organic solvent (H₂pmide = N-(2-pyridylmethyl)iminodiethanol). In 1, one copper(ii) ion is bonded with a H₂pmide, and the other is coordinated with a mono-deprotonated Hpmide^-. The copper(ii) ions are linked through an ethoxo group of the Hpmide^- ligand and two oxygen atoms of a nitrate ion, resulting in an asymmetric dinuclear structure. In 2, two terminal cobalt(iii) units are coordinated with pmide^2-, NCS^-, and CH₃CO₂ ^-. The terminal units are each connected to a central cobalt(ii) cation through the two oxygen atoms of pmide^2- and one bridged acetate ion, giving rise to a mixed-valence trinuclear cobalt complex formulated as Co^III-Co^II-Co^III. Complex 1 shows a strong antiferromagnetic interaction through the ethoxo and nitrato groups between the copper(ii) ions [g = 2.070, J = -88.1 cm^-1 (-61.2 K)]. However, complex 2 behaves as a paramagnetic cobalt(ii) monomer, due to the diamagnetic cobalt(iii) ions in the terminal units [g = 2.526, D = 51.8 cm^-1 (36.0 K)].

Original language	English
Pages (from-to)	763-770
Number of pages	8
Journal	Inorganic Chemistry Frontiers
Volume	2
Issue number	8
DOIs	https://doi.org/10.1039/c5qi00088b
State	Published - 1 Aug 2015

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@article{b8f8f8b2e7a140f6bfb4454e8984fd8b,

title = "Synthesis, structure, and magnetic properties of dicopper and tricobalt complexes based on N-(2-pyridylmethyl)iminodiethanol",

abstract = "Dinuclear [Cu(H2pmide)(NO3)Cu(Hpmide)](NO3)2 (1) and trinuclear [(pmide)2Co3(CH3CO2)2(NCS)2]·4CH3OH (2) coordination complexes have been prepared by the reaction of the tetradentate H2pmide ligand and Cu(NO3)2·3H2O or Co(CH3CO2)2·4H2O/NaNCS in organic solvent (H2pmide = N-(2-pyridylmethyl)iminodiethanol). In 1, one copper(ii) ion is bonded with a H2pmide, and the other is coordinated with a mono-deprotonated Hpmide-. The copper(ii) ions are linked through an ethoxo group of the Hpmide- ligand and two oxygen atoms of a nitrate ion, resulting in an asymmetric dinuclear structure. In 2, two terminal cobalt(iii) units are coordinated with pmide2-, NCS-, and CH3CO2 -. The terminal units are each connected to a central cobalt(ii) cation through the two oxygen atoms of pmide2- and one bridged acetate ion, giving rise to a mixed-valence trinuclear cobalt complex formulated as CoIII-CoII-CoIII. Complex 1 shows a strong antiferromagnetic interaction through the ethoxo and nitrato groups between the copper(ii) ions [g = 2.070, J = -88.1 cm-1 (-61.2 K)]. However, complex 2 behaves as a paramagnetic cobalt(ii) monomer, due to the diamagnetic cobalt(iii) ions in the terminal units [g = 2.526, D = 51.8 cm-1 (36.0 K)].",

author = "Shin, {Jong Won} and Jeong, {Ah Rim} and Shinya Hayami and Dohyun Moon and Min, {Kil Sik}",

note = "Publisher Copyright: This journal is {\textcopyright} the Partner Organisations.",

year = "2015",

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doi = "10.1039/c5qi00088b",

language = "English",

volume = "2",

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TY - JOUR

T1 - Synthesis, structure, and magnetic properties of dicopper and tricobalt complexes based on N-(2-pyridylmethyl)iminodiethanol

AU - Shin, Jong Won

AU - Jeong, Ah Rim

AU - Hayami, Shinya

AU - Moon, Dohyun

AU - Min, Kil Sik

PY - 2015/8/1

Y1 - 2015/8/1

N2 - Dinuclear [Cu(H2pmide)(NO3)Cu(Hpmide)](NO3)2 (1) and trinuclear [(pmide)2Co3(CH3CO2)2(NCS)2]·4CH3OH (2) coordination complexes have been prepared by the reaction of the tetradentate H2pmide ligand and Cu(NO3)2·3H2O or Co(CH3CO2)2·4H2O/NaNCS in organic solvent (H2pmide = N-(2-pyridylmethyl)iminodiethanol). In 1, one copper(ii) ion is bonded with a H2pmide, and the other is coordinated with a mono-deprotonated Hpmide-. The copper(ii) ions are linked through an ethoxo group of the Hpmide- ligand and two oxygen atoms of a nitrate ion, resulting in an asymmetric dinuclear structure. In 2, two terminal cobalt(iii) units are coordinated with pmide2-, NCS-, and CH3CO2 -. The terminal units are each connected to a central cobalt(ii) cation through the two oxygen atoms of pmide2- and one bridged acetate ion, giving rise to a mixed-valence trinuclear cobalt complex formulated as CoIII-CoII-CoIII. Complex 1 shows a strong antiferromagnetic interaction through the ethoxo and nitrato groups between the copper(ii) ions [g = 2.070, J = -88.1 cm-1 (-61.2 K)]. However, complex 2 behaves as a paramagnetic cobalt(ii) monomer, due to the diamagnetic cobalt(iii) ions in the terminal units [g = 2.526, D = 51.8 cm-1 (36.0 K)].

AB - Dinuclear [Cu(H2pmide)(NO3)Cu(Hpmide)](NO3)2 (1) and trinuclear [(pmide)2Co3(CH3CO2)2(NCS)2]·4CH3OH (2) coordination complexes have been prepared by the reaction of the tetradentate H2pmide ligand and Cu(NO3)2·3H2O or Co(CH3CO2)2·4H2O/NaNCS in organic solvent (H2pmide = N-(2-pyridylmethyl)iminodiethanol). In 1, one copper(ii) ion is bonded with a H2pmide, and the other is coordinated with a mono-deprotonated Hpmide-. The copper(ii) ions are linked through an ethoxo group of the Hpmide- ligand and two oxygen atoms of a nitrate ion, resulting in an asymmetric dinuclear structure. In 2, two terminal cobalt(iii) units are coordinated with pmide2-, NCS-, and CH3CO2 -. The terminal units are each connected to a central cobalt(ii) cation through the two oxygen atoms of pmide2- and one bridged acetate ion, giving rise to a mixed-valence trinuclear cobalt complex formulated as CoIII-CoII-CoIII. Complex 1 shows a strong antiferromagnetic interaction through the ethoxo and nitrato groups between the copper(ii) ions [g = 2.070, J = -88.1 cm-1 (-61.2 K)]. However, complex 2 behaves as a paramagnetic cobalt(ii) monomer, due to the diamagnetic cobalt(iii) ions in the terminal units [g = 2.526, D = 51.8 cm-1 (36.0 K)].

UR - http://www.scopus.com/inward/record.url?scp=84941979082&partnerID=8YFLogxK

U2 - 10.1039/c5qi00088b

DO - 10.1039/c5qi00088b

M3 - Article

AN - SCOPUS:84941979082

SN - 2052-1545

VL - 2

SP - 763

EP - 770

JO - Inorganic Chemistry Frontiers

JF - Inorganic Chemistry Frontiers

IS - 8

ER -

Synthesis, structure, and magnetic properties of dicopper and tricobalt complexes based on N-(2-pyridylmethyl)iminodiethanol

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