الفهرس 
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Abstract
This thesis aims at the realization and electric/magnetic characterization of specific organometallic complexes for the purpose of using them as molecular wires confined in specific channels that can find applications in electronic systems. The organometallic complexes investigated are seven hybrid inorganic-organic compounds from different ligands (nitrile ligands and schiff base) with different metal ions (copper, cobalt and nickel). Molecules that bear heteroatoms with a free lone pair of electrons will provide unpaired spins that are expected to couple to each other inside the wires.
In this thesis compounds were synthesized and characterized chemically, electrically and magnetically to check if they show systematic change to functional groups in order to tailor-for-the-purpose electronic and magnetic behavior.
They were investigated chemically and physically using the following methods and techniques: elemental analysis, mass spectroscopy, nuclear magnetic resonance, DROP casting, spin coating and crystallographic examination. Also they were investigated electrically using the electrical transport measurement (ETM) method and magnetically using the vibrating sample magnetometry (VSM) method.
from electrical conductivity studies for complex 1 (nitrile ligand (d) with cobalt), IV results of its junctions show that there was little conductivity and that little conductivity is probably due to the electro migration in high source-drain bias region. But the conductivity is decreasing monotonically, instead of showing clear gate dependence.
Complexes 5 & 6 (arylidine ligand (c) with cobalt) & (schiff base (e) with nickel) were suitable for electrical transport measurements. For complex 6 the gate effect measurement results of the junctions (1a & 3b) demonstrate p-type behavior. The light effect had also been checked and was found that there is a little photocurrent when shining light on the device.
The VSM measurements of complex 1 show paramagnetic signal at RT and “S” shaped plot without hysteresis loop at 4K. For complexes 2 (nitrile ligand (d) with copper) , 3 (nitrile ligand (b) with nickel) , 4 (arylidine ligand (c) with copper), 5 (arylidine ligand (c) with cobalt) and complex 7 (schiff base (f) with nickel) they show weak paramagnetic behavior at RT and more significant paramagnetic behavior at 4k. The VSM results reflect that the complexes have unpaired electron spins. Complex 6 shows diamagnetic behavior at RT and weak paramagnetic behavior at 4K.
Electric and magnetic results of complex 1 (nitrile ligand (d) with cobalt) and complex 6 (schiff base (e) with nickel) are promising to find wide applications in the field of electronic systems so further investigations are recommended to be carried out on them to get better results and various applications.