Polynuclear Complexes of Ligands Containing in Situ Formed Oxazinane and   Oxazolidine Rings with Appended Alkoxyl and Phenol Groups

doi:10.1021/cg300096n

CORC > 北京大学 > 化学与分子工程学院

	Polynuclear Complexes of Ligands Containing in Situ Formed Oxazinane and Oxazolidine Rings with Appended Alkoxyl and Phenol Groups
	Ding, Caixia ; Zeng, Fanhua ; Ni, Jia ; Wang, Bingwu ; Xie, Yongshu
刊名	crystal growth design
	2012
关键词	SINGLE-MOLECULE MAGNET BRIDGED COPPER(II) CLUSTER SCHIFF-BASE LIGANDS COORDINATION POLYMERS CRYSTAL-STRUCTURES MAGNETOSTRUCTURAL CORRELATIONS HETEROTRIMETALLIC COMPLEXES BINUCLEAR COMPLEXES METAL-COMPLEXES TETRANUCLEAR
DOI	10.1021/cg300096n
英文摘要	In situ formation of ligands is an efficient approach to synthesizing novel complexes with unique coordinating moieties. Oxazolidines and oxazinanes are 1,3-N,O-containing five-membered and six-membered heterocycles, respectively. Metal complexes of Ligands derived from these two heterocycles are rather rare. In this work, we designed and synthesized a novel multihydoxy ligand, 2((2,3-dihydroxypropylamino)methyl)phenol (H3L1). It contains both aminoethanol and aminopropanol units, which may be employed to react with aldehydes to afford oxazolidines and oxazinanes, respectively. Thus, H3L1 was reacted with metal salts in the absence cr presence of aldehydes to afford complexes [Cu(HL1)](2) (1), [CuL2](4)center dot 4CH(3)OH (2) [Zn5Na2(L-3)(4)(DMSO)(2.65)(DMF)(1.35)]-DMF (3), and [Ni(HL4)](2) (4). Complex 1 is a dialkoxo-bridged binuclear Cu(II) complex. The coordination moieties are linked by intermolecular C-H center dot center dot center dot O hydrogen bonds to afford a 1D double-chain supramolecular structure. Interestingly, in complexes 2-4, H3L1 has been reacted with formaldehyde, salicylaldehyde, and 2,6-diformyl-4-cresol to afford novel ligands H2L2, H3L3, and H3L4, respectively. The combination of in situ formed oxazinane or oxazolidine rings with appended alkoxyl and phenol functionalities in these ligands has been demonstrated to form a rich diversity of coordination structures. Thus, 2 is a tetranuclear Cu(II) complex with a face-sharing double defective cubane core structure. In this complex, (L-2)(2-) ligands coordinate in two different bridging modes with the Harris notations of 3.1(1)2(12)2(13)1(1) and 3.1(1)3(123)1(1)1(1), respectively. Complex 3 has an interesting heptanuclear Zn5Na2 core structure. A central Zn(II) is coordinated with four alkoxo O atoms from four (L-3)(3-) ligands. Each of the O atom further bridges another Zn(II) atom, resulting in a Zn-5 moiety, which is then connected to two Na+ by phenoxo O bridges, finally affording the Zn5Na2 core. The bridging mode of (L-3)(3-) can be designated as 4.2(12)2(13)1(1)3(124)1(1). And Complex 4 is a binuclear Ni(II) complex containing di-mu(2)-phenoxo bridges. The coordination moieties are linked by intermolecular C-H center dot center dot center dot pi, C-H center dot center dot center dot O, and pi center dot center dot center dot pi interactions to afford a two-dimensional supramolecular network. These results indicate that the combination of in situ formed oxazinane and oxazolidine rings with appended phenol and alkoxyl functionalities is an efficient approach to developing novel ligands and complexes with a rich structural diversity. Variable temperature magnetic data measurements revealed that medium antiferromagnetic interaction exists between the Cu(II) centers in complex 1 with a -2J value of 278 cm(-1). And in complex 4, weak antiferromagnetic coupling occurs between the Ni(II) centers, with a -2J value of 9.36 cm(-1).; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000302336900048&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Multidisciplinary; Crystallography; Materials Science, Multidisciplinary; SCI(E); EI; 11; ARTICLE; 4; 2089-2096; 12
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/233864]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Ding, Caixia,Zeng, Fanhua,Ni, Jia,et al. Polynuclear Complexes of Ligands Containing in Situ Formed Oxazinane and Oxazolidine Rings with Appended Alkoxyl and Phenol Groups[J]. crystal growth design,2012.
APA	Ding, Caixia,Zeng, Fanhua,Ni, Jia,Wang, Bingwu,&Xie, Yongshu.(2012).Polynuclear Complexes of Ligands Containing in Situ Formed Oxazinane and Oxazolidine Rings with Appended Alkoxyl and Phenol Groups.crystal growth design.
MLA	Ding, Caixia,et al."Polynuclear Complexes of Ligands Containing in Situ Formed Oxazinane and Oxazolidine Rings with Appended Alkoxyl and Phenol Groups".crystal growth design (2012).