Loss of chlorine in mass spectra of DCl picked up by water clusters in a beam

2006 ◽  
Vol 124 (14) ◽  
pp. 146102 ◽  
Author(s):  
Ramiro Moro ◽  
Roman Rabinovitch ◽  
Vitaly V. Kresin
Keyword(s):  
Mass Spectra ◽  
Water Clusters

Evolution of “magic numbers” in mass spectra of water clusters

1984 ◽  
Vol 108 (4) ◽  
pp. 401-407 ◽  
Author(s):  
O. Echt ◽  
D. Kreisle ◽  
M. Knapp ◽  
E. Recknagel
Keyword(s):  
Mass Spectra ◽  
Water Clusters ◽  
Magic Numbers

Negatively charged water clusters: mass spectra of (H2O)n- and (D2O)n-

1984 ◽  
Vol 88 (17) ◽  
pp. 3903-3904 ◽  
Author(s):  
H. Haberland ◽  
H. Langosch ◽  
H. G. Schindler ◽  
D. R. Worsnop
Keyword(s):  
Mass Spectra ◽  
Water Clusters ◽  
Charged Water

Case Study of Autistic Subjects with Stable Water Clusters in Panama

2012 ◽  
Vol 3 (3-4) ◽  
pp. 267-280 ◽  
Author(s):  
Ricardo Velasquez ◽  
Holly Chu ◽  
Shui Yin Lo
Keyword(s):  
Water Clusters

A FACILE SYNTHESIS AND REACTIONS OF AMINO SELENOLO[2,3-b]PYRIDINE CARBOXYLATE

2015 ◽  
Vol 12 (1) ◽  
pp. 3910-3918 ◽  
Author(s):  
Dr Remon M Zaki ◽  
Prof Adel M. Kamal El-Dean ◽  
Dr Nermin A Marzouk ◽  
Prof Jehan A Micky ◽  
Mrs Rasha H Ahmed
Keyword(s):  
Biological Activity ◽  
Carbonyl Compounds ◽  
Mass Spectra ◽  
The Other ◽  
Pyridine Derivatives ◽  
Facile Synthesis ◽  
High Biological Activity ◽  
Basic Hydrolysis ◽  
Pyridine Carboxylate ◽  
Hydrolysis Of

 Incorporating selenium metal bonded to the pyridine nucleus was achieved by the reaction of selenium metal with 2-chloropyridine carbonitrile 1 in the presence of sodium borohydride as reducing agent. The resulting non isolated selanyl sodium salt was subjected to react with various α-halogenated carbonyl compounds to afford the selenyl pyridine derivatives 3a-f  which compounds 3a-d underwent Thorpe-Ziegler cyclization to give 1-amino-2-substitutedselenolo[2,3-b]pyridine compounds 4a-d, while the other compounds 3e,f failed to be cyclized. Basic hydrolysis of amino selenolo[2,3-b]pyridine carboxylate 4a followed by decarboxylation furnished the corresponding amino selenolopyridine compound 6 which was used as a versatile precursor for synthesis of other heterocyclic compound 7-16. All the newly synthesized compounds were established by elemental and spectral analysis (IR, 1H NMR) in addition to mass spectra for some of them hoping these compounds afforded high biological activity.

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