Magneto-structural correlation in a series of bimetallic alternating   chain complexes of [(CrL)-L-III(CN)(4)](n)[Mn-III(salpn)(n)center dot   nSolvents (L=2,2&apos;-bipy or 9,10-phen, salpn = substituted salicyldehyde,   solvents water and methanol)

doi:10.1021/001387z

CORC > 北京大学 > 化学与分子工程学院

	Magneto-structural correlation in a series of bimetallic alternating chain complexes of [(CrL)-L-III(CN)(4)](n)[Mn-III(salpn)(n)center dot nSolvents (L=2,2'-bipy or 9,10-phen, salpn = substituted salicyldehyde, solvents water and methanol)
	Pan, Feng ; Wang, Zhe-Ming ; Gao, Song
刊名	inorganic chemistry
	2007
关键词	SINGLE-MOLECULE-MAGNET VERSATILE BUILDING-BLOCK PRUSSIAN BLUE ANALOGS CROSSOVER COORDINATION POLYMERS METAL-CYANIDE CLUSTERS COBALT-IRON CYANIDE CRYSTAL-STRUCTURES SPIN-CROSSOVER MN-II ROOM-TEMPERATURE
DOI	10.1021/001387z
英文摘要	Five chain compounds based on the building block of [Cr(L)(CN)(4)](-) (L = 2,2'-bipy, 1-4; L = 9,10-phen, 5) and [Mn(salpn)](+) (salpn = substituted salicyldehyde-type Schiff base in Scheme 1) have been prepared and characterized structurally and magnetically. The four compounds (1-4) consisting of [Cr(bipy)(CN)(4)](-) units possess straight bimetallic chains as the [Cr(bpy)(CN)(4)](-) unit links the two neighbor [Mn(salpn)](+) units with the two trans-cyanide ligands, while in 5 the chain is zigzag because the [Cr(phen)(CN)(4)](-) unit connects the [Mn(salpn)](+) units with its two cis-cyanide ligands. The bond angles of Mn-N-C-Cr are adjusted by different coligands of salpn and bipy/phen. The chains are stacking via mainly the aromatic pi-pi-type interactions. All compounds show 3D antiferromagnetic ordering with Neel temperatures ranging from 3.7 to 8.1 K, and they are metamagnets displaying antiferromagnetic to ferrimagnetic transition at critical fields of 4.0-13.1 kOe at 1.9 K This is due to weak interchain antiferromagnetic interactions between the ferrimagnetic bimetallic chains in the materials. The intrachain couplings (J, in cm(-1)) in the materials, between cyanide-bridged Cr-III and Mn-III ions, from -1.84 to -5.35 cm(-1), follow a linear relationship (J = -33 + 0.18 alpha) to the Mn-N-C angles (alpha, in deg). In addition, the weak interchain antiferromagnetic interactions and critical fields for antiferromagnetic-ferrimagnetic transition are closely related to some of their structural factors, which were studied very superficially only referring to the separations of nearest chains in each material.; Chemistry, Inorganic & Nuclear; SCI(E); PubMed; 40; ARTICLE; 24; 10221-10228; 46
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/345396]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Pan, Feng,Wang, Zhe-Ming,Gao, Song. Magneto-structural correlation in a series of bimetallic alternating chain complexes of [(CrL)-L-III(CN)(4)](n)[Mn-III(salpn)(n)center dot nSolvents (L=2,2'-bipy or 9,10-phen, salpn = substituted salicyldehyde, solvents water and methanol)[J]. inorganic chemistry,2007.
APA	Pan, Feng,Wang, Zhe-Ming,&Gao, Song.(2007).Magneto-structural correlation in a series of bimetallic alternating chain complexes of [(CrL)-L-III(CN)(4)](n)[Mn-III(salpn)(n)center dot nSolvents (L=2,2'-bipy or 9,10-phen, salpn = substituted salicyldehyde, solvents water and methanol).inorganic chemistry.
MLA	Pan, Feng,et al."Magneto-structural correlation in a series of bimetallic alternating chain complexes of [(CrL)-L-III(CN)(4)](n)[Mn-III(salpn)(n)center dot nSolvents (L=2,2'-bipy or 9,10-phen, salpn = substituted salicyldehyde, solvents water and methanol)".inorganic chemistry (2007).