Theoretical study of the formation of oxide-supported metal particles: strength of the chemical glue as represented by transition metal ions at the metal-oxide interface

1993 ◽  
Vol 97 (35) ◽  
pp. 9022-9027 ◽  
Author(s):  
M. Che ◽  
D. Masure ◽  
P. Chaquin
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Metal Ions ◽  
Theoretical Study ◽  
Transition Metal Ions ◽  
Metal Particles ◽  
Oxide Interface ◽  
Supported Metal

Theoretical study of one and two ammonia molecules bound to the first-row transition metal ions

1991 ◽  
Vol 95 (26) ◽  
pp. 10677-10681 ◽  
Author(s):  
Stephen R. Langhoff ◽  
Charles W. Bauschlicher ◽  
Harry Partridge ◽  
M. Sodupe
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Theoretical Study ◽  
Transition Metal Ions

scholarly journals Metal-ions linked surface-confined molecular dyads of Zn-porphyrin–metallo-terpyridine: an experimental and theoretical study

RSC Advances ◽  
2017 ◽  
Vol 7 (3) ◽  
pp. 1290-1298 ◽  
Author(s):  
Bhawna Gera ◽  
Arun Kumar Manna ◽  
Prakash Chandra Mondal
Keyword(s):  
Solid State ◽  
Transition Metal ◽  
Metal Ions ◽  
Theoretical Study ◽  
Transition Metal Ions ◽  
Molecular Engineering ◽  
Molecular Dyads

Solid state molecular engineering is performed on SiOx-substrates by combining transition metal ions and metallo-porphyrins and terpyridyl complexes.

scholarly journals Low-Dimensional Physics of Organic-Inorganic Multilayers

2021 ◽  
Author(s):  
◽  
Bridget Ingham
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Metal Ions ◽  
Tungsten Oxide ◽  
Hybrid Materials ◽  
Transition Metal Ions ◽  
X Ray ◽  
Metal Tungstate ◽  
Low Dimensional ◽  
Inorganic Layers

<p>This thesis demonstrates the rich low-dimensional physics associated with the class of organic-inorganic hybrid materials based on atomic layers of a metal oxide separated by organic spacer molecules. Hybrid materials based on tungsten oxide and also transition metal tungstates (with manganese, iron, cobalt, nickel and copper) were synthesised and characterised using a variety of techniques. The materials in question represent one example of the huge variety of systems classed as 'organic-inorganic hybrids' and have the potential to combine the high-electron mobility of the metal oxide layers with the propensity for self-assembly of the organic layers. The crystal structures of the compounds were investigated using powder X-ray diffraction and electron diffraction, and compared with structural information obtained using IR, Raman, and extended X-ray absorption fine structure (EXAFS) spectroscopies. This data confirmed the presence of a 2- dimensional layered structure. The electronic properties of the hybrids were studied using optical spectroscopy and confirmed via ab initio calculations. The band gaps of the tungsten oxide hybrids were found to be independent of interlayer spacing, and in all cases were larger than that observed in the three dimensional WO3 'parent' material. For the transition metal tungstate hybrids there appeared to be significant interactions between the organic amines and the transition metal ions within the inorganic layers. The magnetic properties of the hybrids incorporating transition metal ions were also studied in detail. Many of these metal tungstate hybrids display magnetic transitions at low temperatures indicating a crossover from 2-dimensional to 3-dimensional behaviour. This illustrates the importance of the low-dimensional nature of the inorganic layers in these hybrid materials and thus their potential in nano-structural applications.</p>

Theoretical study of transition-metal ions bound to benzene

1992 ◽  
Vol 96 (8) ◽  
pp. 3273-3278 ◽  
Author(s):  
Charles W. Bauschlicher ◽  
Harry Partridge ◽  
Stephen R. Langhoff
Keyword(s):  
Transition Metal ◽  
Metal Ions ◽  
Theoretical Study ◽  
Transition Metal Ions

scholarly journals Low-Dimensional Physics of Organic-Inorganic Multilayers

2021 ◽  
Author(s):  
◽  
Bridget Ingham
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Metal Ions ◽  
Tungsten Oxide ◽  
Hybrid Materials ◽  
Transition Metal Ions ◽  
X Ray ◽  
Metal Tungstate ◽  
Low Dimensional ◽  
Inorganic Layers

<p>This thesis demonstrates the rich low-dimensional physics associated with the class of organic-inorganic hybrid materials based on atomic layers of a metal oxide separated by organic spacer molecules. Hybrid materials based on tungsten oxide and also transition metal tungstates (with manganese, iron, cobalt, nickel and copper) were synthesised and characterised using a variety of techniques. The materials in question represent one example of the huge variety of systems classed as 'organic-inorganic hybrids' and have the potential to combine the high-electron mobility of the metal oxide layers with the propensity for self-assembly of the organic layers. The crystal structures of the compounds were investigated using powder X-ray diffraction and electron diffraction, and compared with structural information obtained using IR, Raman, and extended X-ray absorption fine structure (EXAFS) spectroscopies. This data confirmed the presence of a 2- dimensional layered structure. The electronic properties of the hybrids were studied using optical spectroscopy and confirmed via ab initio calculations. The band gaps of the tungsten oxide hybrids were found to be independent of interlayer spacing, and in all cases were larger than that observed in the three dimensional WO3 'parent' material. For the transition metal tungstate hybrids there appeared to be significant interactions between the organic amines and the transition metal ions within the inorganic layers. The magnetic properties of the hybrids incorporating transition metal ions were also studied in detail. Many of these metal tungstate hybrids display magnetic transitions at low temperatures indicating a crossover from 2-dimensional to 3-dimensional behaviour. This illustrates the importance of the low-dimensional nature of the inorganic layers in these hybrid materials and thus their potential in nano-structural applications.</p>

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