Syntheses, crystal structures, and magnetic characterization of five new dimeric manganese(III) tetradentate Schiff base complexes exhibiting single-molecule-magnet behavior

doi:10.1021/ic051648l

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	Syntheses, crystal structures, and magnetic characterization of five new dimeric manganese(III) tetradentate Schiff base complexes exhibiting single-molecule-magnet behavior
	Lu, ZL ; Yuan, M ; Pan, F ; Gao, S ; Zhang, DQ ; Zhu, DB
刊名	INORGANIC CHEMISTRY
	2006-05-01
卷号	45 期号:9 页码:3538-3548
ISSN号	0020-1669
DOI	10.1021/ic051648l
英文摘要	Tetradentate Schiff base ligands H2L (H(2)saltmen, H(2)salen, H-2-5-Brsalen, and H-2-3,5-Brsalen), derived from the condensation of the corresponding salicylaldehyde or its derivatives with 1,1,2,2-tetramethylethyldiamine or 1, 2-diaminoethane, reacted with Mn-III acetate or perchlorate salts and sodium azide or sodium cyanate to produce five Mn-III dimer complexes, [Mn(saltmen)(O2CCH3)](2)(.)2CH(3)CO(2)H (1), [Mn(saltmen)(N-3)](2) (2), [Mn(salen)(NCO)](2) (3), [Mn(3,5-Brsalen)(3,5-Brsalicylaidehyde)](2) (4), and [Mn(5-Brsalen)(CH3OH)](2)(CIO4)(2) (5). These new complexes have been characterized by IR, elemental analyses, crystal structural analyses, and magnetic studies. Within these Mn-III dimeric complexes, two Mn-III ions are connected by phenolate oxygen atoms with acetate, azide, cyanate, a 3,5Brsalicylaclehyde anion, and a neutral methanol molecule as the axial ligands for complexes 1-5, respectively. Complexes 1-4 exhibit intradimer ferromagnetic exchange and display frequency dependence of ac magnetic susceptibility, possibly showing single-molecule-magnet (SMM) behavior. In contrast, complex 5 shows an intradimer antiferromagnetic coupling probably originating from the relatively shorter Mn-O* distance, compared to those of complexes 1-4.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000237165500013
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/58601]
专题	中国科学院化学研究所
通讯作者	Gao, S
作者单位	1.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Organ Solids Lab, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Lu, ZL,Yuan, M,Pan, F,et al. Syntheses, crystal structures, and magnetic characterization of five new dimeric manganese(III) tetradentate Schiff base complexes exhibiting single-molecule-magnet behavior[J]. INORGANIC CHEMISTRY,2006,45(9):3538-3548.
APA	Lu, ZL,Yuan, M,Pan, F,Gao, S,Zhang, DQ,&Zhu, DB.(2006).Syntheses, crystal structures, and magnetic characterization of five new dimeric manganese(III) tetradentate Schiff base complexes exhibiting single-molecule-magnet behavior.INORGANIC CHEMISTRY,45(9),3538-3548.
MLA	Lu, ZL,et al."Syntheses, crystal structures, and magnetic characterization of five new dimeric manganese(III) tetradentate Schiff base complexes exhibiting single-molecule-magnet behavior".INORGANIC CHEMISTRY 45.9(2006):3538-3548.