EPR and Spectroscopic Studies ofS-Methyl-N-salicylidenehydrazinecarbothioatophenanthrolineoxovanadium(IV) as Model Compound for Vanadium Bound to Nitrogen and Sulfur Heteroatoms

2000 ◽  
Vol 14 (1) ◽  
pp. 179-183 ◽  
Author(s):  
Jimmy S. Hwang ◽  
M. O. Hamad Al-Turabi ◽  
Laila El-Sayed ◽  
H. A. M. Al-Gwidi
Keyword(s):  
Model Compound ◽  
Spectroscopic Studies

Spectroscopic Studies on Reaction between Squalene and Vulcanizing Agents in the Presence and Absence of Zinc-2-Mercaptopyridine-N-Oxide

2004 ◽  
Vol 77 (2) ◽  
pp. 201-213
Author(s):  
C. C. Pierre ◽  
R. N. Datta
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Nmr Spectroscopy ◽  
Carbon Black ◽  
Natural Rubber ◽  
High Performance ◽  
Model Compound ◽  
Spectroscopic Studies ◽  
Reversed Phase ◽  
Zinc Stearate

Abstract Model compound vulcanization in combination with reversed-phase high-performance liquid chromatography and NMR spectroscopy was used to elucidate the reactions of accelerator, sulfur, zinc stearate and zinc-2-mercaptopyridine-N-oxide (ZPNO) in natural rubber vulcanization. Studies of different curing ingredient formulations in squalene have been done to determine the influence of each component during the vulcanization. It was found that 2-mercaptopyridine-N-oxide bridged adducts (R-Sx-Pyr(O)) were formed when squalene was heated in the presence of sulfur, curing ingredients and 2,2′-dithiobis(pyridine-N-oxide) (PyrO-S2-PyrO). Possible interactions of R-Sx-Pyr(O) with carbon black have been proposed.

Spectroscopic studies of Pd (II) complexes with cysteine and its di- and tripeptides

1987 ◽  
Vol 84 ◽  
pp. 443-448 ◽  
Author(s):  
Teresa Kowalik ◽  
Brigitte Decock-Le Reverend ◽  
Claude Loucheux ◽  
Damien Ficheux ◽  
Henryk Kozlowski
Keyword(s):  
Spectroscopic Studies

MÖSSBAUER SPECTROSCOPIC STUDIES OF DIMENSIONALITY AND SPIN REDUCTION EFFECTS IN THE ANTIFERROMAGNETIC SYSTEMS : (AF)n-FeF3

1980 ◽  
Vol 41 (C1) ◽  
pp. C1-187-C1-188 ◽  
Author(s):  
G. P. Gupta ◽  
J. A. Baines ◽  
D. M. Cooper ◽  
D. P.E. Dickson ◽  
C. E. Johnson
Keyword(s):  
Spectroscopic Studies
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