Synthesis, crystal structures and magnetic studies of dicyanamide bridged two new 1D copper(II) complexes

Soma Sen; Samiran Mitra; David L. Hughes; Georgina Rosair; Cédric Desplanches

doi:10.1016/j.ica.2007.05.034

Synthesis, crystal structures and magnetic studies of dicyanamide bridged two new 1D copper(II) complexes

Soma Sen, Samiran Mitra, David L. Hughes, Georgina Rosair, Cédric Desplanches

School of Engineering & Physical Sciences

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

22 Citations (Scopus)

Abstract

Two new dicyanamide bridged 1D polynuclear copper(II) complexes [Cu(L¹){µ_1,5-N(CN)₂}]_n (1) [L¹H = C₆H₅C(O)NHN{double bond, long}C(CH₃)C₅H₄N] and [Cu(L²){µ_1,5-N(CN)₂}]_n (2) [L²H=C₆H₅C(O)CHC(CH₃){double bond, long}NCH₂CH₂N(CH₃)₂] have been synthesised and structures of both the complexes and their crystal packing arrangements have been established by X-ray crystallography. For complex 1, a tridentate hydrazone ligand (L¹H) obtained by the condensation of benzhydrazide and 2-acetylpyridine is used, whereas a tridentate Schiff base (L²H) derived from benzoylacetone and 2-dimethylaminoethylamine is employed for the preparation of complex 2. Variable temperature magnetic susceptibility measurement studies indicate there are weak antiferromagnetic interactions with J values -0.10 and -1.41 cm^-1 for 1 and 2, respectively. © 2007 Elsevier B.V. All rights reserved.

Original language	English
Pages (from-to)	4085-4092
Number of pages	8
Journal	Inorganica Chimica Acta
Volume	360
Issue number	15
DOIs	https://doi.org/10.1016/j.ica.2007.05.034
Publication status	Published - 1 Dec 2007

Keywords

Copper(II) complexes
Crystal structures
Dicyanamide bridging ligand
Variable temperature magnetic studies

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@article{a326a03eb3d64f0397dd9990d3698d98,

title = "Synthesis, crystal structures and magnetic studies of dicyanamide bridged two new 1D copper(II) complexes",

abstract = "Two new dicyanamide bridged 1D polynuclear copper(II) complexes [Cu(L1){µ1,5-N(CN)2}]n (1) [L1H = C6H5C(O)NHN{double bond, long}C(CH3)C5H4N] and [Cu(L2){µ1,5-N(CN)2}]n (2) [L2H=C6H5C(O)CHC(CH3){double bond, long}NCH2CH2N(CH3)2] have been synthesised and structures of both the complexes and their crystal packing arrangements have been established by X-ray crystallography. For complex 1, a tridentate hydrazone ligand (L1H) obtained by the condensation of benzhydrazide and 2-acetylpyridine is used, whereas a tridentate Schiff base (L2H) derived from benzoylacetone and 2-dimethylaminoethylamine is employed for the preparation of complex 2. Variable temperature magnetic susceptibility measurement studies indicate there are weak antiferromagnetic interactions with J values -0.10 and -1.41 cm-1 for 1 and 2, respectively. {\textcopyright} 2007 Elsevier B.V. All rights reserved.",

keywords = "Copper(II) complexes, Crystal structures, Dicyanamide bridging ligand, Variable temperature magnetic studies",

author = "Soma Sen and Samiran Mitra and Hughes, {David L.} and Georgina Rosair and C{\'e}dric Desplanches",

year = "2007",

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doi = "10.1016/j.ica.2007.05.034",

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journal = "Inorganica Chimica Acta",

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TY - JOUR

T1 - Synthesis, crystal structures and magnetic studies of dicyanamide bridged two new 1D copper(II) complexes

AU - Sen, Soma

AU - Mitra, Samiran

AU - Hughes, David L.

AU - Rosair, Georgina

AU - Desplanches, Cédric

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Two new dicyanamide bridged 1D polynuclear copper(II) complexes [Cu(L1){µ1,5-N(CN)2}]n (1) [L1H = C6H5C(O)NHN{double bond, long}C(CH3)C5H4N] and [Cu(L2){µ1,5-N(CN)2}]n (2) [L2H=C6H5C(O)CHC(CH3){double bond, long}NCH2CH2N(CH3)2] have been synthesised and structures of both the complexes and their crystal packing arrangements have been established by X-ray crystallography. For complex 1, a tridentate hydrazone ligand (L1H) obtained by the condensation of benzhydrazide and 2-acetylpyridine is used, whereas a tridentate Schiff base (L2H) derived from benzoylacetone and 2-dimethylaminoethylamine is employed for the preparation of complex 2. Variable temperature magnetic susceptibility measurement studies indicate there are weak antiferromagnetic interactions with J values -0.10 and -1.41 cm-1 for 1 and 2, respectively. © 2007 Elsevier B.V. All rights reserved.

AB - Two new dicyanamide bridged 1D polynuclear copper(II) complexes [Cu(L1){µ1,5-N(CN)2}]n (1) [L1H = C6H5C(O)NHN{double bond, long}C(CH3)C5H4N] and [Cu(L2){µ1,5-N(CN)2}]n (2) [L2H=C6H5C(O)CHC(CH3){double bond, long}NCH2CH2N(CH3)2] have been synthesised and structures of both the complexes and their crystal packing arrangements have been established by X-ray crystallography. For complex 1, a tridentate hydrazone ligand (L1H) obtained by the condensation of benzhydrazide and 2-acetylpyridine is used, whereas a tridentate Schiff base (L2H) derived from benzoylacetone and 2-dimethylaminoethylamine is employed for the preparation of complex 2. Variable temperature magnetic susceptibility measurement studies indicate there are weak antiferromagnetic interactions with J values -0.10 and -1.41 cm-1 for 1 and 2, respectively. © 2007 Elsevier B.V. All rights reserved.

KW - Copper(II) complexes

KW - Crystal structures

KW - Dicyanamide bridging ligand

KW - Variable temperature magnetic studies

U2 - 10.1016/j.ica.2007.05.034

DO - 10.1016/j.ica.2007.05.034

M3 - Article

VL - 360

SP - 4085

EP - 4092

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

SN - 0020-1693

IS - 15

ER -