Tetradentate Schiff base beryllium complexes
نویسندگان
چکیده
منابع مشابه
Unusual coordination mode of tetradentate Schiff base cobalt(III) complexes.
Contrary to the stereotype, Jacobsen's catalyst, chiral (salcy)Co(III)OAc adopts an unusual binding mode. The tetradentate {ONNO} ligand does not form a square plane but wraps cobalt in a cis-β fashion while acetate is chelating.
متن کاملTEMPLATE SYNTHESIS, CHARACTERIZATION OF HIGHLY UNSYMMETRICAL TETRADENTATE SCHIFF BASE COMPLEXES OF NICKEL (II) AND COPPER (II)
Nickel (II) and copper (II) complexes of highly unsymmetrical tetradentate Schiff base have been synthesized by the template reaction of half-units N-(1-hydroxy-2-acetonaphtone)-1-amino-2-phenyleneimine (HL) and N-(2-hydroxyacetophenone)-1-amino-2-phenyleneimine (HL1) with the glyoxalphenylhydrazone. The complexes have been characterized by elemental analyses, conductance, IR, 1H NMR and UV spe...
متن کاملSyntheses, Characterization and Biodistribution of Technetium- 99m-Labeled Tetradentate Schiff Base Complexes
Received 10/28/2002; revised 11/20/2002; accepted 12/20/2002. For correspondence or reprints contact: Wen-Tao Huang, Ph.D., Department of Radiological Technology, Yuanpei University of Science and Technology, 306 Yuanpei Sreet, Hsinchu 300, Taiwan, R.O.C. Tel: (886)3-5381183 ext. 8312, Fax: (886)3-5385353, E-mail: [email protected] A series of tetradentate Schiff base compounds were synt...
متن کاملKinetics and mechanism of ligand exchange reaction of copper(II) complexes with tetradentate Schiff base ligands.
The kinetics of a ligand exchange in the CuL4/H2Ln system, where H2Ln is the N,N'-alkylen-bis(salicyldimine) tetradentate Schiff base ligand (n = 2 or 3, CH2 groups in the chain length of the amine backbone) was studied spectrophotometrically in DMF solvent with or without triethylamine (NEt3) and H2O at 25 ± 0.1 °C and an ionic strength of 0.01 M NaNO3. The reaction rate was found to be first-...
متن کاملLiquid chromatography of uranium complexes of tetradentate Schiff bases.
Dioxouranium together with copper(II), nickel(II) and iron(II) were extracted in chloroform as complexes of bis(salicylaldehyde)-dl-stilbenediimine (dl-H2SA2S) or bis(salicylaldehyde)-meso-stilbenediimine (meso-H2SA2S), and separated by liquid chromatography with UV detection. The linear calibration range and detection limits were 40 - 200 ng and 10 ng/injection for each metal ion. The method w...
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ژورنال
عنوان ژورنال: New Journal of Chemistry
سال: 2015
ISSN: 1144-0546,1369-9261
DOI: 10.1039/c4nj01949k