A novel type of twisted antiparallel double-chain structure with stacking between the two strands. Structure, synthesis and magnetic properties of [{[Cu3L2(dien)(H2O)2]•3H2O}ì][L = 1H-1,2,4-triazole-3,5-dicarboxylate-(3-), dien = 3-azapentane-1,5-diamine]

Petra Van Koningsbruggen, J. W. van Hal, E. Müller, R. A. G. de Graaff, J. G. Haasnoot, J. Reedijk

Research output: Contribution to journalArticle

Abstract

The synthesis and structure of a completely new type of copper(II) polymer [{[Cu3L2(dien)(H2O)2]·3H2O}∞], where L = 1H-1,2,4-triazole-3,5-dicarboxylate(3–) and dien = diethylenetriamine (1,4,7-triazaheptane), is reported. The compound crystallizes in the tetragonal space group P21c, with a=b= 15.845(3), c= 22.743(1)Å and Z= 8. Least-squares refinement of 818 reflections with I > 2σ(I) and 174 parameters gave R= 0.0694, R′= 0.0969. The polymer is essentially a double chain, the building blocks of which are trinuclear copper(II) entities arranged zigzag clockwise and anticlockwise parallel to each other. The copper–copper distances within the trinuclear unit are Cu(1)ċ Cu(2) 5.937(4), Cu(1)ċ Cu(3) 4.014(6) and Cu(2) Cu(3) 5.937(4)Å. The two strands of the chain are linked to each other by apical Cu–O bonds with Cu(2) Cu(2′) 3.498(6)Å. The magnetic susceptibility data (5.8–284 K) are interpreted on the basis of an exchange Hamiltonian function giving J1[Cu(1)–Cu(3)]=–30.0 cm–1, J2[Cu(2)–Cu(2′)]=–1.5 cm–1 and g= 2.0. The nature and the strength of the antiferromagnetic exchange are discussed on the basis of the structural features, and compared with previously reported magneto-structural data for related copper(II) compounds with N1,N2- and N1,N4-linked 1,2,4-triazole ligands.


Original languageEnglish
Pages (from-to)1371-1375
Number of pages5
JournalDalton Transactions
Volume9
DOIs
Publication statusPublished - 1993

Fingerprint

Diamines
Copper
Magnetic properties
Polymers
Copper compounds
Hamiltonians
Magnetic susceptibility
Ligands
1,2,4-triazole
diethylenetriamine

Cite this

@article{a892972d976a4cff8f8fa0dfd13f717b,
title = "A novel type of twisted antiparallel double-chain structure with stacking between the two strands. Structure, synthesis and magnetic properties of [{[Cu3L2(dien)(H2O)2]•3H2O}{\`i}][L = 1H-1,2,4-triazole-3,5-dicarboxylate-(3-), dien = 3-azapentane-1,5-diamine]",
abstract = "The synthesis and structure of a completely new type of copper(II) polymer [{[Cu3L2(dien)(H2O)2]·3H2O}∞], where L = 1H-1,2,4-triazole-3,5-dicarboxylate(3–) and dien = diethylenetriamine (1,4,7-triazaheptane), is reported. The compound crystallizes in the tetragonal space group P21c, with a=b= 15.845(3), c= 22.743(1){\AA} and Z= 8. Least-squares refinement of 818 reflections with I > 2σ(I) and 174 parameters gave R= 0.0694, R′= 0.0969. The polymer is essentially a double chain, the building blocks of which are trinuclear copper(II) entities arranged zigzag clockwise and anticlockwise parallel to each other. The copper–copper distances within the trinuclear unit are Cu(1)ċ Cu(2) 5.937(4), Cu(1)ċ Cu(3) 4.014(6) and Cu(2) Cu(3) 5.937(4){\AA}. The two strands of the chain are linked to each other by apical Cu–O bonds with Cu(2) Cu(2′) 3.498(6){\AA}. The magnetic susceptibility data (5.8–284 K) are interpreted on the basis of an exchange Hamiltonian function giving J1[Cu(1)–Cu(3)]=–30.0 cm–1, J2[Cu(2)–Cu(2′)]=–1.5 cm–1 and g= 2.0. The nature and the strength of the antiferromagnetic exchange are discussed on the basis of the structural features, and compared with previously reported magneto-structural data for related copper(II) compounds with N1,N2- and N1,N4-linked 1,2,4-triazole ligands.",
author = "{Van Koningsbruggen}, Petra and {van Hal}, {J. W.} and E. M{\"u}ller and {de Graaff}, {R. A. G.} and Haasnoot, {J. G.} and J. Reedijk",
year = "1993",
doi = "10.1039/DT9930001371",
language = "English",
volume = "9",
pages = "1371--1375",
journal = "Dalton Transactions",
issn = "1477-9226",
publisher = "Royal Society of Chemistry",

}

TY - JOUR

T1 - A novel type of twisted antiparallel double-chain structure with stacking between the two strands. Structure, synthesis and magnetic properties of [{[Cu3L2(dien)(H2O)2]•3H2O}ì][L = 1H-1,2,4-triazole-3,5-dicarboxylate-(3-), dien = 3-azapentane-1,5-diamine]

AU - Van Koningsbruggen, Petra

AU - van Hal, J. W.

AU - Müller, E.

AU - de Graaff, R. A. G.

AU - Haasnoot, J. G.

AU - Reedijk, J.

PY - 1993

Y1 - 1993

N2 - The synthesis and structure of a completely new type of copper(II) polymer [{[Cu3L2(dien)(H2O)2]·3H2O}∞], where L = 1H-1,2,4-triazole-3,5-dicarboxylate(3–) and dien = diethylenetriamine (1,4,7-triazaheptane), is reported. The compound crystallizes in the tetragonal space group P21c, with a=b= 15.845(3), c= 22.743(1)Å and Z= 8. Least-squares refinement of 818 reflections with I > 2σ(I) and 174 parameters gave R= 0.0694, R′= 0.0969. The polymer is essentially a double chain, the building blocks of which are trinuclear copper(II) entities arranged zigzag clockwise and anticlockwise parallel to each other. The copper–copper distances within the trinuclear unit are Cu(1)ċ Cu(2) 5.937(4), Cu(1)ċ Cu(3) 4.014(6) and Cu(2) Cu(3) 5.937(4)Å. The two strands of the chain are linked to each other by apical Cu–O bonds with Cu(2) Cu(2′) 3.498(6)Å. The magnetic susceptibility data (5.8–284 K) are interpreted on the basis of an exchange Hamiltonian function giving J1[Cu(1)–Cu(3)]=–30.0 cm–1, J2[Cu(2)–Cu(2′)]=–1.5 cm–1 and g= 2.0. The nature and the strength of the antiferromagnetic exchange are discussed on the basis of the structural features, and compared with previously reported magneto-structural data for related copper(II) compounds with N1,N2- and N1,N4-linked 1,2,4-triazole ligands.

AB - The synthesis and structure of a completely new type of copper(II) polymer [{[Cu3L2(dien)(H2O)2]·3H2O}∞], where L = 1H-1,2,4-triazole-3,5-dicarboxylate(3–) and dien = diethylenetriamine (1,4,7-triazaheptane), is reported. The compound crystallizes in the tetragonal space group P21c, with a=b= 15.845(3), c= 22.743(1)Å and Z= 8. Least-squares refinement of 818 reflections with I > 2σ(I) and 174 parameters gave R= 0.0694, R′= 0.0969. The polymer is essentially a double chain, the building blocks of which are trinuclear copper(II) entities arranged zigzag clockwise and anticlockwise parallel to each other. The copper–copper distances within the trinuclear unit are Cu(1)ċ Cu(2) 5.937(4), Cu(1)ċ Cu(3) 4.014(6) and Cu(2) Cu(3) 5.937(4)Å. The two strands of the chain are linked to each other by apical Cu–O bonds with Cu(2) Cu(2′) 3.498(6)Å. The magnetic susceptibility data (5.8–284 K) are interpreted on the basis of an exchange Hamiltonian function giving J1[Cu(1)–Cu(3)]=–30.0 cm–1, J2[Cu(2)–Cu(2′)]=–1.5 cm–1 and g= 2.0. The nature and the strength of the antiferromagnetic exchange are discussed on the basis of the structural features, and compared with previously reported magneto-structural data for related copper(II) compounds with N1,N2- and N1,N4-linked 1,2,4-triazole ligands.

UR - http://pubs.rsc.org/en/Content/ArticleLanding/1993/DT/dt9930001371#!divAbstract

U2 - 10.1039/DT9930001371

DO - 10.1039/DT9930001371

M3 - Article

VL - 9

SP - 1371

EP - 1375

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

ER -