Crystal Structure of Metal Complexes with 2-Imidazoline Nitroxides and Dicyanamide

G. V. Romanenko; E. Yu Fursova; G. A. Letyagin; A. S. Bogomyakov; M. V. Petrova; V. A. Morozov; V. I. Ovcharenko

doi:10.1134/S0022476618060239

Crystal Structure of Metal Complexes with 2-Imidazoline Nitroxides and Dicyanamide

G. V. Romanenko, E. Yu Fursova, G. A. Letyagin, A. S. Bogomyakov, M. V. Petrova, V. A. Morozov, V. I. Ovcharenko

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

1 Citation (Scopus)

Abstract

The structure of heterospin complexes[M(DCA)₂L₂ ^x]·yH₂O, where M = Mn, Co, Ni, Cu, L^x is the nitronyl nitroxide radical; DCA is the dicyanamide anion, y = 0, 1, or 2 is studied. It is found that the nature of[M(DCA)₂L₂ ^x]·yH₂O is characterized by the formation of multiple hydrogen bonds generating ribbons, layers, or frameworks in the crystals. The analysis of magnetostructural correlations by means of band calculations of the electronic structure confirms the occurrence of ferromagnetic exchange between the unpaired electrons of paramagnetic centers in solid [Cu(DCA)₂L₂ ¹]·2H₂O when the distances between the copper ion and the coordinated N-O group are short.

Original language	English
Pages (from-to)	1412-1420
Number of pages	9
Journal	Journal of Structural Chemistry
Volume	59
Issue number	6
DOIs	https://doi.org/10.1134/S0022476618060239
Publication status	Published - 1 Nov 2018

Keywords

2-imidazoline nitroxides
cobalt
copper
dicyanamide
manganese
mixed-ligand complexes
nickel

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@article{46cfb4e4b9904db7a5b7594af180f207,

title = "Crystal Structure of Metal Complexes with 2-Imidazoline Nitroxides and Dicyanamide",

abstract = "The structure of heterospin complexes[M(DCA)2L2 x]·yH2O, where M = Mn, Co, Ni, Cu, Lx is the nitronyl nitroxide radical; DCA is the dicyanamide anion, y = 0, 1, or 2 is studied. It is found that the nature of[M(DCA)2L2 x]·yH2O is characterized by the formation of multiple hydrogen bonds generating ribbons, layers, or frameworks in the crystals. The analysis of magnetostructural correlations by means of band calculations of the electronic structure confirms the occurrence of ferromagnetic exchange between the unpaired electrons of paramagnetic centers in solid [Cu(DCA)2L2 1]·2H2O when the distances between the copper ion and the coordinated N-O group are short.",

keywords = "2-imidazoline nitroxides, cobalt, copper, dicyanamide, manganese, mixed-ligand complexes, nickel",

author = "Romanenko, {G. V.} and Fursova, {E. Yu} and Letyagin, {G. A.} and Bogomyakov, {A. S.} and Petrova, {M. V.} and Morozov, {V. A.} and Ovcharenko, {V. I.}",

year = "2018",

month = nov,

day = "1",

doi = "10.1134/S0022476618060239",

language = "English",

volume = "59",

pages = "1412--1420",

journal = "Journal of Structural Chemistry",

issn = "0022-4766",

publisher = "Springer GmbH & Co, Auslieferungs-Gesellschaf",

number = "6",

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TY - JOUR

T1 - Crystal Structure of Metal Complexes with 2-Imidazoline Nitroxides and Dicyanamide

AU - Romanenko, G. V.

AU - Fursova, E. Yu

AU - Letyagin, G. A.

AU - Bogomyakov, A. S.

AU - Petrova, M. V.

AU - Morozov, V. A.

AU - Ovcharenko, V. I.

PY - 2018/11/1

Y1 - 2018/11/1

N2 - The structure of heterospin complexes[M(DCA)2L2 x]·yH2O, where M = Mn, Co, Ni, Cu, Lx is the nitronyl nitroxide radical; DCA is the dicyanamide anion, y = 0, 1, or 2 is studied. It is found that the nature of[M(DCA)2L2 x]·yH2O is characterized by the formation of multiple hydrogen bonds generating ribbons, layers, or frameworks in the crystals. The analysis of magnetostructural correlations by means of band calculations of the electronic structure confirms the occurrence of ferromagnetic exchange between the unpaired electrons of paramagnetic centers in solid [Cu(DCA)2L2 1]·2H2O when the distances between the copper ion and the coordinated N-O group are short.

AB - The structure of heterospin complexes[M(DCA)2L2 x]·yH2O, where M = Mn, Co, Ni, Cu, Lx is the nitronyl nitroxide radical; DCA is the dicyanamide anion, y = 0, 1, or 2 is studied. It is found that the nature of[M(DCA)2L2 x]·yH2O is characterized by the formation of multiple hydrogen bonds generating ribbons, layers, or frameworks in the crystals. The analysis of magnetostructural correlations by means of band calculations of the electronic structure confirms the occurrence of ferromagnetic exchange between the unpaired electrons of paramagnetic centers in solid [Cu(DCA)2L2 1]·2H2O when the distances between the copper ion and the coordinated N-O group are short.

KW - 2-imidazoline nitroxides

KW - cobalt

KW - copper

KW - dicyanamide

KW - manganese

KW - mixed-ligand complexes

KW - nickel

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U2 - 10.1134/S0022476618060239

DO - 10.1134/S0022476618060239

M3 - Article

AN - SCOPUS:85058433001

VL - 59

SP - 1412

EP - 1420

JO - Journal of Structural Chemistry

JF - Journal of Structural Chemistry

SN - 0022-4766

IS - 6

ER -