scholarly journals Modelling local structural and electronic consequences of proton and hydrogen-atom uptake in VO2 with polyoxovanadate clusters

2021 ◽  
Author(s):  
Sourav Chakraborty ◽  
Eric Schreiber ◽  
Karla Rosalia Sanchez Lievanos ◽  
Mehrin Tariq ◽  
William W. Brennessel ◽  
...  

We report the synthesis and characterization of a series of siloxide-functionalised polyoxovanadate-alkoxide (POV-alkoxide) clusters, [V6O6(OSiMe3)(OMe)12]n (n = 1-, 2-) that serve as molecular models for proton and hydrogen-atom uptake in...

2007 ◽  
Vol 46 (26) ◽  
pp. 11190-11201 ◽  
Author(s):  
Adam Wu ◽  
Joshua Masland ◽  
Rodney D. Swartz ◽  
Werner Kaminsky ◽  
James M. Mayer

1986 ◽  
Vol 51 (10) ◽  
pp. 2109-2115
Author(s):  
Bohumil Hájek ◽  
Jana Ondráčková ◽  
František Jursík

Of the 12 possible diastereoisomers only Δ-cis(N)-trans(O5)-(RR)-Na[Co(alamp)2] isomer was isolated. Possible reasons explaining stereospecific coordination of ligand are discussed in terms of steric intra- and interligand interactions arising from the mutual position of -CH3 and N-CH2-CH2- groups. These exclude all isomers with SS or RS configuration of secondary nitrogen atoms. For the determination of the absolute configuration visible absorption, 1H, 13C NMR, circular dichroism and molecular models were employed.


1996 ◽  
Vol 61 (10) ◽  
pp. 3572-3572
Author(s):  
Lawrence T. Scott ◽  
Atena Necula

2018 ◽  
Vol 2 (1) ◽  
pp. 7
Author(s):  
S Chirino ◽  
Jaime Diaz ◽  
N Monteblanco ◽  
E Valderrama

The synthesis and characterization of Ti and TiN thin films of different thicknesses was carried out on a martensitic stainless steel AISI 410 substrate used for tool manufacturing. The mechanical parameters between the interacting surfaces such as thickness, adhesion and hardness were measured. By means of the scanning electron microscope (SEM) the superficial morphology of the Ti/TiN interface was observed, finding that the growth was of columnar grains and by means of EDAX the existence of titanium was verified.  Using X-ray diffraction (XRD) it was possible to observe the presence of residual stresses (~ -3.1 GPa) due to the different crystalline phases in the coating. Under X-ray photoemission spectroscopy (XPS) it was possible to observe the molecular chemical composition of the coating surface, being Ti-N, Ti-N-O and Ti-O the predominant ones.


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