Heterobimetallic Tungsten/Molybdenum(IV)−Copper(II) MOFs Constructed by a Unique 2D → 3D Architecture and Exhibiting New Topology and Magnetic Properties

2009 ◽  
Vol 9 (12) ◽  
pp. 5351-5355 ◽  
Author(s):  
Jun Qian ◽  
Hirofumi Yoshikawa ◽  
Jinfang Zhang ◽  
Huajian Zhao ◽  
Kunio Awaga ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
3D Architecture

Three-Membered Metal-Nucleobase-Carboxylate System Showing Interesting 2D and 3D Architecture: Synthesis, Structure, Thermostability, and Magnetic Properties

2012 ◽  
Vol 65 (3) ◽  
pp. 320 ◽  
Author(s):  
Hai-Xiao Huang ◽  
Xiao-Zhao Tian ◽  
Yu-Mei Song ◽  
Zhen-Wei Liao ◽  
Gong-Ming Sun ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Hydrothermal Synthesis ◽  
Organic Compounds ◽  
Isophthalic Acid ◽  
3D Structures ◽  
Zeolite Type ◽  
3D Architecture ◽  
Metal Organic ◽  
Thermogravimetric Studies ◽  
2D And 3D

Via hydrothermal synthesis, we constructed four nucleobase metal-organic compounds, viz. Zn2(7H-ade)(oba)2·H2O (1), Zn(1H-hyp)(Hoba) (2), Ni(1H-ade)(ip) (3), and Cd(H2O)(9H-ade)(ip) (4), where ade, hyp, H2oba, and H2ip are adenine, hypoxanthine, 4,4′-oxybisbenzoic acid, and isophthalic acid, respectively. These polymers show novel 2D and 3D structures, such as 3-fold interpenetrating dmp net, supramolecular zeolite-type sra net, and exceptional 2D 44 net composed of three kinds of quadrangle, observed in polymers 1, 2, and 3, respectively. Moreover, thermogravimetric studies of polymers 1, 2, and 4, and the magnetic properties of 3 are also explored.

Synthesis, crystal structure, and magnetic properties of an azido-bridged Mn(II) complex [C3H5NH3][Mn(N3)3]

2017 ◽  
Vol 72 (6) ◽  
pp. 409-413 ◽  
Author(s):  
Kun Qian ◽  
Yiyong Xu ◽  
Zengtao Wang ◽  
Jie Yang
Keyword(s):  
Crystal Structure ◽  
Magnetic Properties ◽  
Magnetic Susceptibility ◽  
Magnetic Measurements ◽  
Antiferromagnetic Interaction ◽  
Magnetic Susceptibility Data ◽  
Susceptibility Data ◽  
Compound C ◽  
Elemental Analyses ◽  
3D Architecture

AbstractA new compound [C3H5NH3][Mn(N3)3] has been synthesized, in which the Mn2+ ions are connected by the end-to-end azide anions to form the 3D architecture, while the C3H5NH3+ cations reside in the cavities of the Mn2+–N3− network, forming rich N−H···N hydrogen bonds with the terminal N atoms of the azide anions. The complex has been characterized by IR spectroscopy, elemental analyses, and magnetic measurements. Magnetic susceptibility data indicate antiferromagnetic interaction among the MnII ions.

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

Influence of Ni-substitution on magnetic properties of annealed FeNiNbCuSiB alloys

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-111-Pr2-114 ◽  
Author(s):  
P. Vojtaník ◽  
E. Komová ◽  
R. Varga ◽  
R. Matejko ◽  
R. Grössinger ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Ni Substitution
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