Übergangsmetallkomplexe mit Vinyl- und Cyanpyridinen als Liganden / Transition Metal Complexes with Vinyl- and Cyanopyridines as Ligands

1974 ◽  
Vol 29 (5-6) ◽  
pp. 371-375 ◽  
Author(s):  
Hans G. Biedermann ◽  
Eva Leeb ◽  
Karl E. Schwarzhans
Keyword(s):  
Transition Metal ◽  
Ir Spectra ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Metal Chelates ◽  
Transition Metal Chelates

A series of complexes formed between transition metal chelates and the ligands vinylpyridine and cyanopyridine has been prepared. By analysis of the IR spectra of the complexes the coordinated ligand atoms were determined.

Studies on complexes of VO(II), Mn(II), Cu(II), Ni(II), Co(II), Zn(II), Fe(III), and UO2(II) with hydrazone β-diketone ligands

1990 ◽  
Vol 68 (5) ◽  
pp. 774-781 ◽  
Author(s):  
Mohamed S. Abdel-Moez ◽  
Shaker L. Stefan ◽  
Mostafa M. El-Behairy ◽  
Mohamed M. Mashely ◽  
Basheir A. El-Shetary
Keyword(s):  
Magnetic Susceptibility ◽  
Transition Metal ◽  
Ir Spectra ◽  
Metal Ions ◽  
Metal Complexes ◽  
Stability Constants ◽  
Transition Metal Complexes ◽  
Elemental Analysis ◽  
Water Solvent ◽  
Uv Visible

The stepwise stability constants of VO(II), Mn(II), Cu(II), Ni (II), Co(II), Zn(II), Fe(III), and UO2(II) metal ions with 2-(2-acetylphenylhydrazone)-5,5-dimethyl-1,3-cyclohexane dione (2-APHDm), 3-(2-acetylphenylhydrazone)pentane-2,4-dione (2-APHA), 2-(2-acetylphenylhydrazone)-1-phenyl-1,3-butane dione (2-APHB), 2-(2-acetylphenylhydrazone)-1,3-diphenyl-1,3-propane dione (2-APHDB), and 3-(2-acetylphenylhydrazone)-1,1,1-trifluoropentane-2,4-dione (2-APHTA) were determined at 30 °C by pH titrations in 75% (v/v) dioxane–water solvent. In addition, metal complexes of three related β-diketones, 2-APHA, 2-APHB, and 2-APHDB have been synthesized and characterized by elemental analysis, uv–visible, ir spectra, and conductance in DMF and magnetic susceptibility measurements. The structure of the complexes have been proposed. Keywords: transition metal complexes of hydrazone-β-diketone ligands.

scholarly journals Synthesis, Characterisation, Spectral and Microbial Studies of Transition Metal Complexes of the Drug, Secnidazole

2010 ◽  
Vol 7 (s1) ◽  
pp. S520-S526
Author(s):  
Aradhana Verma ◽  
S. A. Iqbal ◽  
Arun Singh ◽  
Liviu Mitu
Keyword(s):  
Antimicrobial Activity ◽  
Magnetic Properties ◽  
Transition Metal ◽  
Transition Metal Complexes ◽  
Potassium Carbonate ◽  
Metal Chelates ◽  
Spectral Studies ◽  
Gram Negative ◽  
Transition Metal Chelates ◽  
Gram Negative Organisms

5-Chloromethyl-8-quinolinol hydrochloride was condensed with 1-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-ol in presence of potassium carbonate. The resulting 5-((1-(2-methyl-5-nitro-1H-imidazol-1-yl)propan-2-yloxy)methyl)quinolin-8-ol was characterized by elemental analysis and spectral studies. The transition metal chelates of the same were prepared with Cu2+, Ni2+, Co2+, Mn2+and Zn2+and characterized by IR and electronic spectral studies and magnetic properties. The antimicrobial activity of ligand and its metal chelates were screened against various gram positive and gram negative organisms. The results show that all these samples are more or less active agents against various organisms.

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

Density Functional Calculations of EPR Parameter g Tensors of Some Transition Metal Complexes

2011 ◽  
Vol 2 (2) ◽  
pp. 139-141
Author(s):  
Vinita Prajapati ◽  
◽  
P.L.Verma P.L.Verma ◽  
Dhirendra Prajapati ◽  
B.K.Gupta B.K.Gupta
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Density Functional Calculations ◽  
Density Functional
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