Hexanuclear copper(II) cage with {Cu3O•••H•••OCu3} core supported by a dicompartmental oxime ligand with m-xylyl spacer: synthesis, molecular structure and magnetic studies
- Publikationstyp:
- Zeitschriftenaufsatz
- Metadaten:
-
- Autoren
- Sibasree Karmakar
- Oindrila Das
- Subhamoy Ghosh
- Ennio Zangrando
- Mara Johann
- Eva Rentschler
- Thomas Weyhermueller
- Sumit Khanra
- Tapan Kanti Paine
- Autoren-URL
- https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000284066100014&DestLinkType=FullRecord&DestApp=WOS_CPL
- DOI
- 10.1039/c0dt00951b
- eISSN
- 1477-9234
- Externe Identifier
- Clarivate Analytics Document Solution ID: 678IA
- PubMed Identifier: 20963225
- ISSN
- 1477-9226
- Ausgabe der Veröffentlichung
- 45
- Zeitschrift
- DALTON TRANSACTIONS
- Paginierung
- 10920 - 10927
- Datum der Veröffentlichung
- 2010
- Status
- Published
- Titel
- Hexanuclear copper(II) cage with {Cu<sub>3</sub>O•••H•••OCu<sub>3</sub>} core supported by a dicompartmental oxime ligand with <i>m</i>-xylyl spacer: synthesis, molecular structure and magnetic studies
- Sub types
- Article
- Ausgabe der Zeitschrift
- 39
Datenquelle: Web of Science (Lite)
- Andere Metadatenquellen:
-
- Autoren
- Sibasree Karmakar
- Oindrila Das
- Subhamoy Ghosh
- Ennio Zangrando
- Mara Johann
- Eva Rentschler
- Thomas Weyhermüller
- Sumit Khanra
- Tapan Kanti Paine
- DOI
- 10.1039/c0dt00951b
- eISSN
- 1477-9234
- ISSN
- 1477-9226
- Ausgabe der Veröffentlichung
- 45
- Zeitschrift
- Dalton Transactions
- Sprache
- en
- Paginierung
- 10920 - 10920
- Datum der Veröffentlichung
- 2010
- Status
- Published
- Herausgeber
- Royal Society of Chemistry (RSC)
- Herausgeber URL
- http://dx.doi.org/10.1039/c0dt00951b
- Datum der Datenerfassung
- 2024
- Titel
- Hexanuclear copper(ii) cage with {Cu3O⋯H⋯OCu3} core supported by a dicompartmental oxime ligand with m-xylyl spacer: synthesis, molecular structure and magnetic studies
- Ausgabe der Zeitschrift
- 39
Datenquelle: Crossref
- Abstract
- A new dicompartmental dioxime ligand (H(2)L) with m-xylyl spacer between the donor sites has been synthesised by Schiff-base condensation of α,α'-diamino-m-xylene and diacetyl monooxime. The ligand reacts with copper(ii) salts giving rise to hexanuclear tricationic copper(II) cage complexes [Cu(II)(6)(μ(3)-O···H···O-μ(3))L(3)(H(2)O)(6)]X(3) (X = BF(4), 1a; X = ClO(4), 1b). The complexes have been characterised by different analytical and spectroscopic techniques and confirmed the hexanuclear structure even in solution. Single crystal X-ray diffraction studies of both the complexes revealed a very similar core structure with three dicompartmental ligands supporting two triangular Cu(3)O cores that share a proton, located on their common threefold axis and involved in a strong hydrogen bond interaction (O···O distance of 2.517(2) Å). Two Cu(3)O units do not superimpose but are staggered and disposed with the formation of a helicate structure. However both the enantiomers are present in the centrosymmetric space group. The facing Cu(3)-planes in 1a are separated at a distance of 3.476 Å. The temperature dependence of the magnetic behaviour of the hexanuclear complex 1a clearly indicates an overall antiferromagnetic exchange interaction between the spin carriers in the cage having two Cu(3)O subunits and leaves a single unpaired electron in each triangular unit. The unpaired electrons in the two Cu(3)O units interact antiferromagnetically through hydrogen bonding giving rise to an overall singlet-spin ground state.
- Addresses
- Department of Chemical Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur Campus, Mohanpur, Nadia, 741252, West Bengal, India.
- Autoren
- Sibasree Karmakar
- Oindrila Das
- Subhamoy Ghosh
- Ennio Zangrando
- Mara Johann
- Eva Rentschler
- Thomas Weyhermüller
- Sumit Khanra
- Tapan Kanti Paine
- DOI
- 10.1039/c0dt00951b
- eISSN
- 1477-9234
- Externe Identifier
- PubMed Identifier: 20963225
- Open access
- false
- ISSN
- 1477-9226
- Ausgabe der Veröffentlichung
- 45
- Zeitschrift
- Dalton transactions (Cambridge, England : 2003)
- Schlüsselwörter
- Copper
- Oximes
- Organometallic Compounds
- Ligands
- Crystallography, X-Ray
- Magnetics
- Sprache
- eng
- Medium
- Print-Electronic
- Online publication date
- 2010
- Paginierung
- 10920 - 10927
- Datum der Veröffentlichung
- 2010
- Status
- Published
- Datum der Datenerfassung
- 2010
- Titel
- Hexanuclear copper(II) cage with {Cu3O···H···OCu3} core supported by a dicompartmental oxime ligand with m-xylyl spacer: synthesis, molecular structure and magnetic studies.
- Sub types
- Research Support, Non-U.S. Gov't
- Journal Article
- Ausgabe der Zeitschrift
- 39
Datenquelle: Europe PubMed Central
- Abstract
- A new dicompartmental dioxime ligand (H(2)L) with m-xylyl spacer between the donor sites has been synthesised by Schiff-base condensation of α,α'-diamino-m-xylene and diacetyl monooxime. The ligand reacts with copper(ii) salts giving rise to hexanuclear tricationic copper(II) cage complexes [Cu(II)(6)(μ(3)-O···H···O-μ(3))L(3)(H(2)O)(6)]X(3) (X = BF(4), 1a; X = ClO(4), 1b). The complexes have been characterised by different analytical and spectroscopic techniques and confirmed the hexanuclear structure even in solution. Single crystal X-ray diffraction studies of both the complexes revealed a very similar core structure with three dicompartmental ligands supporting two triangular Cu(3)O cores that share a proton, located on their common threefold axis and involved in a strong hydrogen bond interaction (O···O distance of 2.517(2) Å). Two Cu(3)O units do not superimpose but are staggered and disposed with the formation of a helicate structure. However both the enantiomers are present in the centrosymmetric space group. The facing Cu(3)-planes in 1a are separated at a distance of 3.476 Å. The temperature dependence of the magnetic behaviour of the hexanuclear complex 1a clearly indicates an overall antiferromagnetic exchange interaction between the spin carriers in the cage having two Cu(3)O subunits and leaves a single unpaired electron in each triangular unit. The unpaired electrons in the two Cu(3)O units interact antiferromagnetically through hydrogen bonding giving rise to an overall singlet-spin ground state.
- Autoren
- Sibasree Karmakar
- Oindrila Das
- Subhamoy Ghosh
- Ennio Zangrando
- Mara Johann
- Eva Rentschler
- Thomas Weyhermüller
- Sumit Khanra
- Tapan Kanti Paine
- Autoren-URL
- https://www.ncbi.nlm.nih.gov/pubmed/20963225
- DOI
- 10.1039/c0dt00951b
- eISSN
- 1477-9234
- Ausgabe der Veröffentlichung
- 45
- Zeitschrift
- Dalton Trans
- Schlüsselwörter
- Copper
- Crystallography, X-Ray
- Ligands
- Magnetics
- Organometallic Compounds
- Oximes
- Sprache
- eng
- Country
- England
- Paginierung
- 10920 - 10927
- Datum der Veröffentlichung
- 2010
- Status
- Published
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2011
- Titel
- Hexanuclear copper(II) cage with {Cu3O···H···OCu3} core supported by a dicompartmental oxime ligand with m-xylyl spacer: synthesis, molecular structure and magnetic studies.
- Sub types
- Journal Article
- Research Support, Non-U.S. Gov't
- Ausgabe der Zeitschrift
- 39
Datenquelle: PubMed
- Beziehungen:
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