The objectives of this experiment were to investigate the application of new ligands including different atoms & evaluation their nucleophile effects against various metals. Chemistry researchers are really interested in this field. From among various ligands, there are some ligands with different coordinating ligands as well. There are great number of intermediate complexes and major elements ...

Some new Sb(III) and As(III) complexes of N∩S donor ligands N’[1-(2-oxo-2H-chrome-3yl-ethylidene] hydrazinecarbodithionic acid methyl ester (L1H) and N’ [1-(2-oxo-2H-chrome-3yl ethylidene] -hydrazinecarbodithionic acid benzyl ester (L2H) have been synthesized. All the synthesized compounds were characterized by elemental analyses, melting point determinations and a combination of electronic, IR...

Heteroleptic complexes of strontium () were prepared by employing β-diketonates and donor-functionalized alkoxides as coordinating ligands. The results illustrate the effect of alkoxide substituent groups on the overall structures of the complexes. The presence of a terminal methoxy group in the alkoxide ligands leads to the formation of trimeric complexes , whereas the substituents on the amin...

2 Introduction 3 Results and Discussion 17 A Chromium Diphosphine System for Selective and Catalytic Ethylene Oligomerization 17 Synthesis of PNP Ligands with Ether Groups Tethered to Nitrogen 17 Preparation and Characterization of PNP Chromium Complexes 18 Catalytic Runs at 1 atm of Ethylene Using Precatalysts 21-24 24 Catalytic Runs at Higher Pressures of Ethylene 28 Role of the Ether Tether ...

Tin(IV) and organotin(IV) compounds, a deceptively simple area of inorganic and metal-organic chemistry, have been receiving more attention due to the important industrial (Tammy and Georges, 2005) and environmental applications. Nitrogen, oxygen, and sulfur donor ligands have been used to enhance the biological activity of organotin derivatives (Mohammad et al., 2004; Jason et al., 2000). Also...