13C NMR spectroscopic studies of the behaviors of carbonyl compounds in various solutions

2017 ◽  
Vol 58 (50) ◽  
pp. 4677-4681 ◽  
Author(s):  
Yoshikazu Hiraga ◽  
Saori Chaki ◽  
Satomi Niwayama
1981 ◽  
Vol 22 (36) ◽  
pp. 3513-3516 ◽  
Author(s):  
Klaus Müllen ◽  
Siglinde Bender ◽  
Eleni Kotzamani ◽  
Hans Schmickler ◽  
Bruno Frei ◽  
...  
Keyword(s):  
13C Nmr ◽  

2013 ◽  
Vol 11 (6) ◽  
pp. 1010-1018 ◽  
Author(s):  
Gunasekaran Raja ◽  
Chinnasamy Jayabalakrishnan

AbstractA series of new ruthenium(II) complexes were synthesized with Schiff bases derived from salicylaldehyde / o-hydroxyacetophenone/ o-vanillin / 2-hydroxy-1-naphthaldehyde with thiosemicarbazide and acetyl furan. They are characterized by elemental analysis, IR, electronic, 1H NMR, 13C NMR and mass spectral studies. The elemental analysis suggests the stoichiometry to be 1:1 (metal:ligand). Four of these complexes were tested for its binding with CT-DNA using absorption spectroscopic studies and two of these complexes exhibit efficient DNA cleavage activity.


1970 ◽  
Vol 43 (1) ◽  
pp. 123-130 ◽  
Author(s):  
M Zahurul Haque ◽  
M Abdullah As Saki ◽  
M Umar Ali ◽  
M Yusuff Ali

Arjun (Terminalia arjuna) is a source of many potent, biologically active compounds, planned all over Bangladesh. The chemical examinations of its fruits were taken up to isolate and identify active principles. For this purpose fresh fruits of Terminalia arjuna were extracted with rectified spirit. The extract was then triturated with petroleum ether (40-60°C), which was then subjected to column chromatographic separation followed by PTLC. Such separation led to the isolation of some new pure compounds, TA-1 to TA-5. The structures of compounds were characterized through spectroscopic studies (IR, 1H-NMR and 13C-NMR). Key words: Arjun, TA-1, TA-5, Spectroscopic studies DOI: 10.3329.bjsir.v43i1.863 Bangladesh J. Sci. Ind. Res. 43(1),123-130, 2008


1986 ◽  
Vol 27 (4) ◽  
pp. 477-480 ◽  
Author(s):  
K. Müllen ◽  
H. Schmickler ◽  
B. Frei ◽  
H.R. Wolf

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