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Sintesis Dan Karakterisasi Kompleks Dwilogam Rutenium-Tungsten Dengan Ligan Penambat Karboksilat Dan Ligan Penghubung Tiosianat

A novel bimetallic with carboxylic anchoring ligands and thiocyanate connecting ligands from the ruthenium bipyridyl complex and the tungsten carbonyl complex was synthesized. The function of anchoring ligand is to facilitate covalent bond with semi conductor surface. The black bimetallic complex solid product was soluble in polar protic solvents. The ligands and metal complexes were characterized on the basis of elemental analysis as well as UV-Vis, FTIR, 1HNMR, 13CNMR and LCMS spectroscopy.
The results of UV-Vis spectroscopy confirm that bimetallic complex has better absorption than the constituent monologue complex with higher absorption intensity. The results of FTIR, 1HNMR, 13CNMR and LCMS analysis indicated, bimetallic complex was having a molecular weight of 1000.884 m/z with the molecular formula Ru(C12H8N2O4)2-(NCS)2-W(CO)4. Cyclic voltammetry of the bimetallic complex showed multiple redox couples, in which half potentials E1/2 at -0,194; 0,201 and 0.552 V were assigned as the formal redox processes of Ru(III)/Ru(II) reduction, W(I)/W(II) and W(0)/W(II) oxidations, respectively. The results of chemical computation confirmed that the structure of bimetallic complex was stable and had 259 molecular orbitals. HOMO and LUMO orbitals were found in 242 and 243 orbitals. The HOMO-LUMO energies produced were -4,876 eV and -4,410 eV respectively. The results of chemical computation using material studio 8.0 accelrys Biovia-Dmol3 confirm that tungsten metal is easily oxidized whereas ruthenium metal is easily reduced and is in agreement with the results of cyclic voltammetry analysis.

Key words: complex, ruthenium, tungsten

Ketersediaan
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Perpustakaan Universitas Riau 10 05. 219 (0008)
10 05. 219 (0008)
Tersedia
Informasi Detail
Judul Seri
-
No. Panggil
10 05. 219 (0008)
Penerbit
Pekanbaru : Universitas Riau – Pascasarjana – Tesis Kimia.,
Deskripsi Fisik
xiv, 102 hlm.; ill.; 29 cm
Bahasa
Indonesia
ISBN/ISSN
-
Klasifikasi
10 05. 219 (0008)
Tipe Isi
-
Tipe Media
-
Tipe Pembawa
-
Edisi
-
Subjek
PASCASARJANA (MAGISTER) KIMIA
Info Detail Spesifik
-
Pernyataan Tanggungjawab
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Tidak tersedia versi lain

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