ICCAS OpenIR
Syntheses, crystal structures, and magnetic properties of two cyclic dimer M2L2 complexes constructed from a new nitronyl nitroxide ligand and M(hfac)(2) (M = Cu2+Mn2+)
Zhang, Jian-Ying; Liu, Cai-Ming; Zhang, De-Qing; Gao, Song; Zhu, Dao-Ben
2007-08-01
Source PublicationINORGANICA CHIMICA ACTA
ISSN0020-1693
Volume360Issue:11Pages:3553-3559
AbstractTwo new binuclear radical complexes derived from a new long nitronyl nitroxide ligand, 2 -[4-(5 -pyrimidyl)phenyl]-4 4,5,5 -tetramethylimidazoline-1-oxyl-3-oxide (4-NITPhPyrim), and M(hfaC)(2) (M2+ = Cu2+, Mn2+; hfac(-) = hexafluoroacetylacetonato), [Cu(hfac)(2)-(4-NITPhPyrim)](2) center dot 4H(2)O (1) and [Mn(hfac)(2)(4-NITPhPyrim)](2) center dot 4H(2)O (2), were synthesized as well as characterized structurally and magnetically. X-ray analysis indicates that 1 and 2 are rectangle-like centrosymmetric dimer M2L2 complexes. Magnetic measurements indicate that there are two types of magnetic exchanges in 1: the ferromagnetic (FM) exchange between the Cu(II) ion and the directly bonded nitroxide unit (J(1) = 24.20 cm(-1)) and the weak FM exchange of Cu-NIT through the pyrimidine and phenyl rings (J(2) = 0. 62 cm(-1)). Besides the strong antiferromagnetic (AFM) coupling between the Mn(II) ion and the directly bonded nitroxide unit (J = -87.61 cm(-1)). there is a weak FM interaction between the two Mn-NIT pairs (theta = 0.39 K) in 2. (c) 2007 Elsevier B.V. All rights reserved.
KeywordNitronyl Nitroxide Cyclic Dimer Complexes Crystal Structures Magnetic Properties
DOI10.1016/j.ica.2007.04.026
Indexed BySCI
Language英语
WOS IDWOS:000248733200012
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/62818
Collection中国科学院化学研究所
Corresponding AuthorLiu, Cai-Ming
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Natl Lab Mol Sci, Beijing 100080, Peoples R China
2.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat & Appl, Beijing 100871, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jian-Ying,Liu, Cai-Ming,Zhang, De-Qing,et al. Syntheses, crystal structures, and magnetic properties of two cyclic dimer M2L2 complexes constructed from a new nitronyl nitroxide ligand and M(hfac)(2) (M = Cu2+Mn2+)[J]. INORGANICA CHIMICA ACTA,2007,360(11):3553-3559.
APA Zhang, Jian-Ying,Liu, Cai-Ming,Zhang, De-Qing,Gao, Song,&Zhu, Dao-Ben.(2007).Syntheses, crystal structures, and magnetic properties of two cyclic dimer M2L2 complexes constructed from a new nitronyl nitroxide ligand and M(hfac)(2) (M = Cu2+Mn2+).INORGANICA CHIMICA ACTA,360(11),3553-3559.
MLA Zhang, Jian-Ying,et al."Syntheses, crystal structures, and magnetic properties of two cyclic dimer M2L2 complexes constructed from a new nitronyl nitroxide ligand and M(hfac)(2) (M = Cu2+Mn2+)".INORGANICA CHIMICA ACTA 360.11(2007):3553-3559.
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