Rational Synthesis and Magnetic Properties of a Family of Low-Dimensional Heterometallic Cr−Mn Complexes Based on the Versatile Building Block [Cr(2,2‘-bipyridine)(CN)4]-

2005 ◽  
Vol 44 (13) ◽  
pp. 4534-4545 ◽  
Author(s):  
Yuan-Zhu Zhang ◽  
Song Gao ◽  
Zhe-Ming Wang ◽  
Gang Su ◽  
Hao-Ling Sun ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Building Block ◽  
Low Dimensional

Syntheses, Structures, and Magnetic Properties of Low-Dimensional Heterometallic Complexes Based on the Versatile Building Block [(Tp)Cr(CN)3]−

2011 ◽  
Vol 50 (17) ◽  
pp. 8636-8644 ◽  
Author(s):  
Min-Xia Yao ◽  
Zheng-You Wei ◽  
Zhi-Guo Gu ◽  
Qi Zheng ◽  
Yan Xu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Building Block ◽  
Heterometallic Complexes ◽  
Low Dimensional

scholarly journals Magnetic properties of the low-dimensional spin-12magnetα-Cu2As2O7

2011 ◽  
Vol 84 (13) ◽  
Author(s):  
Y. C. Arango ◽  
E. Vavilova ◽  
M. Abdel-Hafiez ◽  
O. Janson ◽  
A. A. Tsirlin ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Low Dimensional

Mixed-valence molecular magnets based on building block: Structures, magnetic properties and DFT analyses

Polyhedron ◽  
2007 ◽  
Vol 26 (9-11) ◽  
pp. 1781-1786 ◽  
Author(s):  
Y.C. Chen ◽  
G.X. Liu ◽  
P.F. Wang ◽  
H. Xu ◽  
X.M. Ren ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Building Block ◽  
Mixed Valence ◽  
Molecular Magnets ◽  
Block Structures

Synthesis, structure, and magnetic properties of cyanide-bridged low-dimensional heterometallic FeIII–MnII complexes

2009 ◽  
pp. 9418 ◽  
Author(s):  
Daopeng Zhang ◽  
Hailong Wang ◽  
Yuting Chen ◽  
Lifang Zhang ◽  
Laijin Tian ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Low Dimensional

Solvothermal Syntheses, Crystal Structures of Two New Thioantimonates(III) of the Mn2(L)Sb2S5 Family with L = Diethylenetriamine and N-Methyl-1,3-Diaminopropane and a Study of the Magnetic Properties of Four Compounds of the Series

2004 ◽  
Vol 59 (8) ◽  
pp. 869-876 ◽  
Author(s):  
L. Engelke ◽  
R. Stähler ◽  
M. Schur ◽  
C. Näther ◽  
W. Bensch ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Elevated Temperatures ◽  
Exchange Interactions ◽  
Building Blocks ◽  
Monoclinic Space Group ◽  
Antiferromagnetic Materials ◽  
Distorted Octahedra ◽  
Secondary Building Units ◽  
Low Dimensional ◽  
New Compounds

AbstractThe two new compounds Mn2(L)Sb2S5 (L = diethylenetriamine = DIEN, N-methyl-1,3- diaminopropane = MDAP) were prepared under solvothermal conditions using the elements as starting materials. Both compounds crystallise in the monoclinic space group P21/c with the lattice parameters a=10.669(7), b=12.805(2), c=12.072(1)Å , β =115.786(7)°,V =1485.1(4) Å3 for L = DIEN and a = 10.1859(7), b = 12.7806(6), c = 12.1256(8)Å , β = 110.173(8)°, V = 1481.7(2) Å3 for L = MDAP and Z = 4. The primary building units are SbS3 pyramids, MnS6 and MnS4N2 distorted octahedra. These primary building blocks are interconnected to form Mn2Sb2S4 hetero-cubane units. The hetero-cubanes share common corners, edges and faces thus forming a second heterocubane. These secondary building units are joined to form layers within the (100) plane. The connection mode yields ellipsoidal pores within the layers. The amines are exclusively bound to one of the two crystallographically independent Mn2+ cations and they point into the pores and between the layers separating the layers from each other. The interlayer separation and the size of the pores depend on the sterical requirements of the amine incorporated into the network. A pronounced distortion of the MnS4N2 octahedron results from a significant elongation of one Mn-S distance from 2.866 Å (L = methylamine, MA) to 3.185 Å for L = MDAP. The magnetic susceptibility curves are typical for low-dimensional antiferromagnetic materials and the large negative values for the Weiss constant Θ indicate strong antiferromagnetic exchange interactions. The magnetic properties are significantly influenced by the change of the Mn-S bonds introduced by the different amines. The compounds decompose at elevated temperatures with a two step reaction for L = MA and ethylenediamine and in a one step reaction for the bidentate acting amine molecules.

The structure, and electronic and magnetic properties of MX (M=GA, IN; X=S, SE, TE) nanoribbons

2020 ◽  
Vol 34 (18) ◽  
pp. 2050168
Author(s):  
Fei Feng ◽  
Fengdong Lv ◽  
Gongping Zheng ◽  
Guangtao Wang
Keyword(s):  
Magnetic Properties ◽  
Quantum Confinement ◽  
Density Functional ◽  
Quantum Confinement Effect ◽  
Ring Structure ◽  
Functional Theory ◽  
Electronic And Magnetic Properties ◽  
Semiconductor Behavior ◽  
Low Dimensional ◽  
Edge Side

We used the first principle of density functional theory to perform detailed calculations regarding the structure, and the electronic and magnetic properties of MX (M[Formula: see text]=[Formula: see text]Ga, In; X[Formula: see text]=[Formula: see text]S, Se, Te) nanoribbons. The armchair nanoribbons (ARNs) are nonmagnetic semiconductors, which have even or odd oscillations of bandgaps. All small-sized zigzag nanoribbons (ZRNs) were found to break the six-membered ring structure and move to the center, thereby exhibiting nonmagnetic semiconductor behavior owing to the quantum confinement effect. However, among the large ZRNs, which are all metals, MTe ZRNs are nonmagnetic; this differs from the case of graphene, MoS2 and Ti2CO2 nanoribbons. MX (M[Formula: see text]=[Formula: see text]Ga, In; X[Formula: see text]=[Formula: see text]S, Se) ZRNs exhibited ferromagnetism owing to the presence of the unpaired electrons on the metal-edge side and the magnetic moment of each pair of molecules, which was controlled by the size of the nanoribbons. The results provided a theoretical reference that can be used in the future to produce MX materials for application in low-dimensional semiconductor devices, spin electron transport devices and new magnetoresistance devices.

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