Structures and magnetic properties of cyclic heterometallic tetranuclear clusters

Polyhedron ◽  
2017 ◽  
Vol 127 ◽  
pp. 278-286 ◽  
Author(s):  
Yuan-Ang Liu ◽  
Cai-Yun Wang ◽  
Mo Zhang ◽  
Xue-Qin Song
Keyword(s):  
Magnetic Properties ◽  
Tetranuclear Clusters

Tetranuclear Clusters Containing a CrIII-Doped MnIII4O2Core: Syntheses, Structures, and Magnetic Properties

2008 ◽  
Vol 47 (11) ◽  
pp. 4536-4544 ◽  
Author(s):  
Yun-Sheng Ma ◽  
Yi-Zhi Li ◽  
You Song ◽  
Li-Min Zheng
Keyword(s):  
Magnetic Properties ◽  
Tetranuclear Clusters

Influence of alcoholic solvent and acetate anion coordination mode variations on structures and magnetic properties of heterometallic Zn2Dy2 tetranuclear clusters

2018 ◽  
Vol 47 (46) ◽  
pp. 16616-16626 ◽  
Author(s):  
Hongshan Ke ◽  
Wen Wei ◽  
Yi-Quan Zhang ◽  
Jun Zhang ◽  
Gang Xie ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Coordination Mode ◽  
Acetate Anion ◽  
Anion Coordination ◽  
Tetranuclear Clusters

We clarify that slight modifications of the synthetic conditions generate two Zn2Dy2 clusters with acetate anion coordination mode variation and different magnetic behaviors.

Anion induced diversification from heptanuclear to tetranuclear clusters: Syntheses, structures and magnetic properties

2011 ◽  
Vol 40 (43) ◽  
pp. 11402 ◽  
Author(s):  
Shu-Hua Zhang ◽  
Lu-Fang Ma ◽  
Hua-Hong Zou ◽  
Yin Guang Wang ◽  
Hong Liang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Tetranuclear Clusters

Room Temperature Syntheses, Structures and Magnetic Properties of Two Heterometallic Tetranuclear Clusters

2014 ◽  
Vol 25 (6) ◽  
pp. 1541-1552 ◽  
Author(s):  
Ru-Xia Zhao ◽  
Hong Hai ◽  
Gui Li ◽  
Hai-Yang Zhang ◽  
Qiu-Ping Huang ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Room Temperature ◽  
Tetranuclear Clusters

Vierkernige Molybdän-Schwefel-Cluster mit Dithiophosphinatoliganden / Tetranuclear Molybdenum-Sulfur-Clusters with Dithiophosphinato Ligands

1987 ◽  
Vol 42 (11) ◽  
pp. 1373-1378 ◽  
Author(s):  
Helmut Keck ◽  
Andreas Kruse ◽  
Wilhelm Kuchen ◽  
Jürgen Mathow ◽  
Hartmut Wunderlich
Keyword(s):  
Magnetic Properties ◽  
Tetranuclear Clusters

Tetranuclear clusters Mo4S4(R2PS2)6 (4) (a: R = Et, b: R = Pr) with cubane-like cores are conveniently obtained by reacting equimolar quantities of Mo3S4(Et2PS2)4, Mo(CO)6 and R2P(S)-S-S-P(S)R2. 31P NMR and MS data of 4 are reported and the magnetic properties are discussed. 4a crystallizes triclinically with a = 1159.41(6), b = 1162.77(7), c = 2228.54(14) pm, α = 102.660(3), β = 98.382(4), γ = 98.546(5)°. P1̅, Z = 2. The molecule consists of a distorted Mo4S4 cubane. Each Mo atom is coordinated by six S atoms: three within the cubane, two from a bidentate and one from a chelating dithiophosphinato ligand. Two Mo -Mo distances are short- ened by the chelate to an av. of 278.6 pm, while the av. of the remaining four Mo -Mo distances is 287.9 pm.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Microstructure in soft magnetic E3 (S1, Al) (Sendust) alloys

1988 ◽  
Vol 46 ◽  
pp. 770-771
Author(s):  
June D. Kim
Keyword(s):  
Electron Microscopy ◽  
Magnetic Properties ◽  
Ternary Phase Diagram ◽  
Vertical Tube ◽  
Vacuum Induction Melting ◽  
Induction Melting ◽  
Soft Magnetic ◽  
Quenching Temperature ◽  
Thin Foils ◽  
Vertical Tube Furnace

Iron-base alloys containing 8-11 wt.% Si, 4-8 wt.% Al, known as “Sendust” alloys, show excellent soft magnetic properties. These magnetic properties are strongly dependent on heat treatment conditions, especially on the quenching temperature following annealing. But little has been known about the microstructure and the Fe-Si-Al ternary phase diagram has not been established. In the present investigation, transmission electron microscopy (TEM) has been used to study the microstructure in a Sendust alloy as a function of temperature.An Fe-9.34 wt.% Si-5.34 wt.% Al (approximately Fe3Si0.6Al0.4) alloy was prepared by vacuum induction melting, and homogenized at 1,200°C for 5 hrs. Specimens were heat-treated in a vertical tube furnace in air, and the temperature was controlled to an accuracy of ±2°C. Thin foils for TEM observation were prepared by jet polishing using a mixture of perchloric acid 15% and acetic acid 85% at 10V and ∼13°C. Electron microscopy was performed using a Philips EM 301 microscope.

Magnetic properties of new charge-transfer complexes based on manganese porphyrins

1997 ◽  
Vol 90 (3) ◽  
pp. 407-413
Author(s):  
MARC KELEMEN ◽  
CHRISTOPH WACHTER ◽  
HUBERT WINTER ◽  
ELMAR DORMANN ◽  
RUDOLF GOMPPER ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Manganese Porphyrins
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