scholarly journals Magnetic, thermal and spectroscopic features of 2, 3- and 3, 5-dimethoxybenzoates of Co(II), Ni(II) and Cu(II)

2005 ◽  
Vol 70 (8-9) ◽  
pp. 1089-1104 ◽  
Author(s):  
Wieslawa Ferenc ◽  
Agnieszka Walków-Dziewulska ◽  
Jan Sarzynski
Keyword(s):  
Thermal Properties ◽  
Solid State ◽  
High Spin ◽  
Magnetic Moments ◽  
Thermal Stabilities ◽  
Decomposition Products ◽  
Magnetic Susceptibilities ◽  
Temperature Range ◽  
Solid State Decomposition ◽  
Ligand Fields

The 2,3- and 3,5-dimethoxybenzoates of Co(II), Ni(II) and Cu(II) were synthesized as solids and their magnetic, spectral and thermal properties studied. The complexes are hydrated or anhydrous compounds which possess colors typical of the M(II) ions. Their thermal stabilities were examined in air and nitrogen and the gaseous and solid state decomposition products were also identified. The magnetic susceptibilities of the complexes were measured over the temperature range 4.4?300 K and the magnetic moments were calculated. The results show that the 2,3- and 3,5-dimethoxybenzoates of Co(II) and Ni(II) are high-spin complexes with weak ligand fields, and that the complexes of Cu(II) form dimers.

scholarly journals Magnetic, thermal and spectroscopic properties of 5-chloro-2-methoxybenzoates of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II)

2002 ◽  
Vol 67 (8-9) ◽  
pp. 605-615 ◽  
Author(s):  
Beata Bocian ◽  
Wieslawa Ferenc
Keyword(s):  
Thermal Properties ◽  
High Spin ◽  
Magnetic Moments ◽  
Spectroscopic Properties ◽  
Thermal Stabilities ◽  
Magnetic Susceptibilities ◽  
Temperature Range

The 5-chloro-2-methoxybenzoates of Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) were synthesized as solids and their magnetic, spectral and thermal properties studied. The complexes possess colours typical of the M(II) ions. The thermal stabilities were examined in air and nitrogen atmospheres and the products of decompositions were also identified. The magnetic susceptibilities of the complexes were measured over the temperature range 4.4?300 K and the magnetic moments were calculated. The results show that the 5-chloro-2-methoxybenzoates of Mn(II), Co(II) and Ni(II) are octahedral high-spin complexes.

The Effect of Sintering Temperature to the Properties of Zinc Oxide

2013 ◽  
Vol 795 ◽  
pp. 419-423 ◽  
Author(s):  
J.H. Lim ◽  
C.K. Yeoh ◽  
Pei Leng Teh ◽  
W.M. Arif ◽  
A. Chik
Keyword(s):  
Thermal Conductivity ◽  
Zinc Oxide ◽  
Thermal Properties ◽  
Solid State ◽  
Sintering Temperature ◽  
Solid State Method ◽  
Influence Of Temperature ◽  
Temperature Range ◽  
Influence Of Temperature On ◽  
State Method

In this paper, different sintering temperature used to study the influence of temperature on the structural and thermal properties of zinc oxide (ZnO). On this research, the sample was prepared by solid-state method for zinc oxide (ZnO) at different sintering temperature which was 700°C, 800°C and 900°C. It was observed that the density of bulk ZnO that sintering at 900°C had the higher value of density 5.03 g/cm3. The microhardness of the bulk ZnO had a higher measurement 397.3 Hv after sintered at 900°C. ZnO that sintering at 900°C had been observed that had thermal conductivity 1.1611W/cm-K in the sintering temperature range 700°C to 900°C.

Unimolecular Precursors to Binary Metal Sulfides: Mechanistic and Structural Correlations

1995 ◽  
Vol 410 ◽  
Author(s):  
Rodney D. Schluter ◽  
Gertrude Kräuter ◽  
William S. Rees
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Metal Sulfides ◽  
X Ray Diffraction ◽  
Decomposition Products ◽  
X Ray ◽  
Binary Metal ◽  
Solid State Decomposition

ABSTRACTThe roles which ligand size and stability play in influencing solid-state thermolyses products and phases are developed for a group of metal thiolate compounds. The exploration includes Pb(SR)2 [R = t-Bu, i-Bu, s-Bu], Cd(SR*)2 [ R* = i-Pr, I-Bu, Bz], ClHgSR** [ R** = i- Pr, neo-Pent, Bz] and In(SR***)3 [R*** = 2,4,6-(i-Pr)3C6H2, 2-CH3O-5-CH3C6H3, o- C6H4CH2N(CH3)2]. In several examples, the precursors have been characterized by single crystal X-ray diffraction. In most cases, solid-state decomposition products have been identified by XRPD, and volatile decomposition products have been identified by GC/MS. All precursors have been studied by TGA.

scholarly journals Spectroscopic, magnetic and thermal behaviour of the 2, 3, 4-trimethoxybenzoates of heavy lanthanides(III) and yttrium(III)

2004 ◽  
Vol 69 (3) ◽  
pp. 195-204 ◽  
Author(s):  
Wieslawa Ferenc ◽  
Beata Bocian ◽  
Agnieszka Walkow-Dziewulska
Keyword(s):  
Thermal Behaviour ◽  
Magnetic Moments ◽  
Carboxylate Group ◽  
Thermal Stabilities ◽  
Solubility In Water ◽  
Temperature Range ◽  
Heavy Lanthanide ◽  
Air Atmosphere ◽  
Chelating Ligand ◽  
Heavy Lanthanides

The complexes of 2,3,4-trimethoxybenzoic acid with Tb(III), Dy(III), Ho(III) Er(III), Tm(III), Yb(III), Lu(III) and Y(III) are crystalline, anhydrous salts with colours typical of the M(III) ions. The carboxylate group is probably a bidenate, chelating ligand. The thermal stabilities of the complexes were examined under an air atmosphere in the temperature range 293?1273 K. The solubility in water at 293 K for all the heavy lanthanide(III) and yttrium(III) complexes are in the order of 10-3 mol dm-3. The magnetic moments of the complexes were determined in the temperature range 77?300 K.

Operando Visualization of Morphological Dynamics in All-Solid-State Batteries

2019 ◽  
Author(s):  
Xiaohan Wu ◽  
Juliette Billaud ◽  
Iwan Jerjen ◽  
Federica Marone ◽  
Yuya Ishihara ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Electrolytes ◽  
Rational Design ◽  
Morphological Evolution ◽  
Active Material ◽  
Composite Layer ◽  
Transference Number ◽  
Thermal Stabilities ◽  
Solid State Batteries ◽  
All Solid State Batteries

<div> <div> <div> <p>All-solid-state batteries are considered as attractive options for next-generation energy storage owing to the favourable properties (unit transference number and thermal stabilities) of solid electrolytes. However, there are also serious concerns about mechanical deformation of solid electrolytes leading to the degradation of the battery performance. Therefore, understanding the mechanism underlying the electro-mechanical properties in SSBs are essentially important. Here, we show three-dimensional and time-resolved measurements of an all-solid-state cell using synchrotron radiation x-ray tomographic microscopy. We could clearly observe the gradient of the electrochemical reaction and the morphological evolution in the composite layer. Volume expansion/compression of the active material (Sn) was strongly oriented along the thickness of the electrode. While this results in significant deformation (cracking) in the solid electrolyte region, we also find organized cracking patterns depending on the particle size and their arrangements. This study based on operando visualization therefore opens the door towards rational design of particles and electrode morphology for all-solid-state batteries. </p> </div> </div> </div>

Measurement of Extreme Hyperfine Fields in Two-Coordinate High-Spin Fe2+Complexes by Mössbauer Spectroscopy: Essentially Free-Ion Magnetism in the Solid State

2014 ◽  
Vol 53 (22) ◽  
pp. 12100-12107 ◽  
Author(s):  
Aimee M. Bryan ◽  
Chun-Yi Lin ◽  
Michio Sorai ◽  
Yuji Miyazaki ◽  
Helen M. Hoyt ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Solid State ◽  
High Spin ◽  
Mossbauer Spectroscopy ◽  
Hyperfine Fields ◽  
Mößbauer Spectroscopy ◽  
Free Ion

MAGNETIC PROPERTIES OF U1-xDyxAlyNi5-y (y=0,1) SYSTEMS

2003 ◽  
Vol 17 (27n28) ◽  
pp. 1453-1460
Author(s):  
ILEANA LUPSA
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Spin Fluctuation ◽  
Magnetic Moments ◽  
Transition Temperatures ◽  
Temperature Range ◽  
Fluctuation Model ◽  
Magnetically Ordered

The magnetic properties of U 1-x Dy x Al y Ni 5-y (y=0,1) systems were investigated in the 2(5)–600 K temperature range and for fields up to 80 kOe. The systems having x≥0.2 are magnetically ordered with low transition temperatures and magnetization mainly due to the Dy contribution. The nickel exhibits magnetic moments, very weak in the low temperature range and well-defined effective moments over transition temperatures. The nickel behavior is discussed in terms of the spin fluctuation model.

Solid state decomposition studies on metal salicylates

1987 ◽  
Vol 114 (1) ◽  
pp. 145-152 ◽  
Author(s):  
Pertti Kokkonen ◽  
Lauri H.J. Lajunen ◽  
Leena Palmu
Keyword(s):  
Solid State ◽  
Solid State Decomposition

Transition metal acetates

1968 ◽  
Vol 46 (22) ◽  
pp. 3443-3446 ◽  
Author(s):  
D. A. Edwards ◽  
R. N. Hayward
Keyword(s):  
Solid State ◽  
Thermogravimetric Analysis ◽  
Transition Metal ◽  
Infrared Spectra ◽  
Magnetic Moments ◽  
Acetate Group ◽  
Visible Spectra

Some anhydrous transition metal acetates (Mn(II), Co(II), Cu(II), Ni(II), Zn(II), Ag(I), Mo(II), Ce(III), La(III)) have been prepared and their infrared spectra measured in the solid state. The infrared spectra have been related to established modes of bonding of the acetate group to metals. Thermal decompositions of the anhydrous acetates have been investigated by thermogravimetric analysis; magnetic moments and visible spectra have been measured.

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