Role of Biologically Important Zwitterionic Buffer Secondary Ligands on the Stability of the Mixed-Ligand Complexes of Divalent Metal Ions and Adenosine 5‘-Mono-, 5‘-Di-, and 5‘-Triphosphate

2001 ◽  
Vol 46 (2) ◽  
pp. 346-354 ◽  
Author(s):  
Hassan A. Azab ◽  
Adel S. Orabi ◽  
Enas T. Abd. El-Salam
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Divalent Metal Ions ◽  
The Stability ◽  
Zwitterionic Buffer

scholarly journals Synthesis, Characterization and Biological Activity of Some Mixed Ligand Complexes of 1, 10-Phenanthronline and [4-(2-hydroxy-1,2-diphenylethylideneamino)-N-pyrimidin-2-yl) benzene sulfonamide] with Divalent Metal Ions

2017 ◽  
Vol 27 (5) ◽  
pp. 55
Author(s):  
Rehab K. Al-Shemary ◽  
Inam H. Ibrahim ◽  
Nibras A. Al-marsomy
Keyword(s):  
Escherichia Coli ◽  
Metal Ions ◽  
Acidic Medium ◽  
Condensation Reaction ◽  
Divalent Metal ◽  
Mixed Ligand ◽  
Mixed Ligand Complexes ◽  
Divalent Metal Ions ◽  
Ft Ir ◽  
And Staphylococcus Aureus

Schiff base ligand [4-(2-hydroxy-1, 2-diphenylethylideneamino)-N-pyrimidin-2-yl)benzene sulfonamide] (L) was prepared through a condensation reaction of  sulfadiazine and benzoin in acidic medium. The prepared ligand has been characterized with different techniques (C.H.N.S, FT-IR, UV-Vis and 1H&13C-N.M.R). Mixed ligand complexes of some divalent metal ions [Co(II), Mn(II), Ni(II),Cu(II) and Hg(II)] were prepared by the  reaction of [4-(2-hydroxy-1,2-diphenylethylidene amino)-N-pyrimidin-2-yl)benzene sulfonamide](L)  and 1,10-Phenanthronline with the metal ions in basic conditions. The prepared complexes were characterized and their astrochemical structures and geometries were suggested depending upon data of (UV-Vis, FT-IR, atomic absorption, micro elemental analysis The following general formula was achieved : [M(PHN)(L)2], where  M represent  (Co(II)- Cu(II)-Mn(II)- Ni(II) and Hg(II)). Electronic spectra supported by magnetic moment's revealed octahedral geometries for all the prepared complexes. The mixed complexes showed resistivity to different bacteria such as(Pseudomonas aeruginosa), (Bacillus subtilis), (Escherichia coli), and (staphylococcus aureus).

scholarly journals Rhizosphere Acidification by Iron Deficient Bean Plants: The Role of Trace Amounts of Divalent Metal Ions

1989 ◽  
Vol 90 (1) ◽  
pp. 359-364 ◽  
Author(s):  
H. Frits Bienfait ◽  
Henk J. Lubberding ◽  
Peter Heutink ◽  
L. Lindner ◽  
Jacques Visser ◽  
...  
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
Rhizosphere Acidification ◽  
Bean Plants ◽  
Iron Deficient

scholarly journals A dual role of divalent metal ions in catalysis and folding of RNase H1 from extreme halophilic archaeonHalobacteriumsp. NRC-1

FEBS Open Bio ◽  
2012 ◽  
Vol 2 (1) ◽  
pp. 345-352 ◽  
Author(s):  
Elias Tannous ◽  
Koji Yokoyama ◽  
Dong-Ju You ◽  
Yuichi Koga ◽  
Shigenori Kanaya
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Dual Role ◽  
Divalent Metal Ions

Role of divalent metal ions in the hammerhead RNA cleavage reaction

Biochemistry ◽  
1991 ◽  
Vol 30 (39) ◽  
pp. 9464-9469 ◽  
Author(s):  
SueAnn C. Dahm ◽  
Olke C. Uhlenbeck
Keyword(s):  
Metal Ions ◽  
Divalent Metal ◽  
Rna Cleavage ◽  
Divalent Metal Ions ◽  
Cleavage Reaction ◽  
Hammerhead Rna

scholarly journals Effect of Divalent Metal Ions on the Stability of Cu-Containing Layered Double Hydroxides

2012 ◽  
Vol 28 (07) ◽  
pp. 1714-1720 ◽  
Author(s):  
NI Zhe-Ming ◽  
◽  
LIU Jiao ◽  
XUE Ji-Long ◽  
LI Yuan ◽  
...  
Keyword(s):  
Metal Ions ◽  
Layered Double Hydroxides ◽  
Divalent Metal ◽  
Divalent Metal Ions ◽  
The Stability ◽  
Double Hydroxides
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