Advanced search
Publication Cover
Journal of Coordination Chemistry Volume 61, 2008 - Issue 2
Submit an article Journal homepage
21
Views
0
CrossRef citations to date
0
Altmetric
Original Articles

Structures and magnetic properties of two new heterospin complexes involving nitroxide radicals and oxamido-bridged copper(II)

Jing Chen Department of Chemistry, Anyang Normal University, Henan, 455002, P.R. China; Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China
,
You Song State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, P.R. China
,
Dong-Zhao Gao Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China
,
Dai-Zheng Liao Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China
,
Zong-Hui Jiang Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China; State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, P.R. ChinaCorrespondence[email protected]
&
Shi-Ping Yan Department of Chemistry, Nankai University, Tianjin, 300071, P.R. China
Pages 294-301 | Received 02 Nov 2006, Accepted 23 Mar 2007, Published online: 22 Sep 2010
 
Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days

Abstract

Two new binuclear copper(II) complexes containing four spin carriers with pyridyl-substituted nitroxide radicals have been synthesized and characterized structurally and magnetically. These complexes are formulated as [Cu2(oxap)(IM4py)2](ClO4)2 (1) and [Cu2(oxap)(NIT4py)2](ClO4)2 (2), respectively, in which oxap stands for N,N′-bis(2-aminopropyl). IM4py stands for 2-(4′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl and NIT4py for 2-(4′-pyridyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide. The structures of the complexes consist of centro-symmetric trans oxamido-bridged copper(II) binuclear units and nitroxide radicals. In 1 and 2 the copper atoms are in a distorted square plane and radicals (IM4py and NIT4py) coordinate to copper via nitrogen atoms from pyridine rings. Magnetic analysis indicates that 1 and 2 exhibit strong metal-metal antiferromagnetic coupling through oxamido-bridged and antiferromagnetic exchange interactions between copper(II) ion and radicals, respectively. The magnetic behaviors are discussed with reference to their crystal structures.

Acknowledgements

This work was supported by the National Natural Science Foundation of China (No. 20331010) and Tianjin Science Foundation (No. 033602011).

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

Related Research Data

Stable free radicals. X. Nitronyl nitroxide monoradicals and biradicals as possible small molecule spin labels
Source: American Chemical Society (ACS)
Oxamidato complexes. 3. A study of the formation of homo- and heteropolymetallic Cu(II)H2apoxM(II) complexes (H2apox = N,N'-bis(3-aminopropyl)oxamide; M(II) = Mn, Co, Ni, Cu, Zn, Cd). Synthesis and crystal structure of [Cu2(apox)(NCO)2]
Source: American Chemical Society (ACS)
Synthesis of and magnetic interactions in binuclear Cu(II)M(II) (M=Cu, Ni and Mn) complexes of macrocyclic oxamido ligands
Source: Elsevier BV
Coordination chemistry of N,N′-bis(coordinating group substituted)oxamides: a rational design of nuclearity tailored polynuclear complexes
Source: Elsevier BV
Stable free radicals. VIII. New imino, amidino, and carbamoyl nitroxides
Source: American Chemical Society (ACS)
Conformational change of the N,N′-bis(3-aminopropyl)oxamidate ligand in nuclearity tailoring copper(II) complexes
Source: Royal Society of Chemistry (RSC)
Tunable interaction in (.mu.-oxamido)copper(II) binuclear complexes
Source: American Chemical Society (ACS)
CCDC 260170: Experimental Crystal Structure Determination
Source: Cambridge Crystallographic Data Centre
CCDC 281074: Experimental Crystal Structure Determination
Source: Cambridge Crystallographic Data Centre
Molecular structures and magnetic properties of the mixed-ligand complexes of bis(hexafluoroacetylacetonato)manganese(II), -copper(II), and -zinc(II) with 4,4'-bis(N-tert-butyl-N-oxylamino)-2,2'-bipyridine. Isosceles triangular hetero-three-spin systems consisting of aminoxyls and metal ions.
Source: (:unav)
Oxamido-Bridged Bimetallic Complexes Involving Nitronyl Nitroxide Radical Ligands: Crystal Structure and Magnetic Behavior
Source: American Chemical Society (ACS)
The chemistry and magnetic properties of metal nitronyl nitroxide complexes
Source: John Wiley & Sons, Inc.
N, N'-ビス(アミノアルキル)オキサミドの銅(II)およびニッケル(II)錯体の合成脇
Source: The Chemical Society of Japan
Spectroscopic implications for magnetic interactions in metal complexes with nitroxide radicals
Source: The Chemical Society of Japan
Copper(II) complexes with N,N′-bis(alkylaminoalkyl)-oxamides and related ligands
Source: Elsevier BV
Nitrones as Ligands in Complexes of Cu(II), Mn(II), Co(II), Ni(II), Fe(II), and Fe(III) with N-tert-Butyl-α-(2-pyridyl)nitrone and 2,5,5-Trimethyl-1-pyrroline-N-oxide†
Source: American Chemical Society (ACS)

Linking provided by 

Related research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.