Synthesis and characterization of tris(1-carboxyl-2-phenyl-1,2-ethyleno dithiolenic-S,S') tungsten complex as photocatalyst for photolysis of H2O molecules

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Abstract

Tris (1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex is one of the most promising photocatalyst to be used in photolysis of water to produce hydrogen. The first step of the synthesis involves a metathesis reaction of tetrapropylammonium bromide [{(C3H7)4 N}Br] and ammonium tetrathiotungstate [(NH4)2WS4] to form a tetrapropylammonium tetrathiotungstate [{(C3 H7)4N}2WS4] (precursor). Then, the precursor was reacted with phenylacetylenecarboxylic acid (C9H6O2) to form tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex (C27H18 O2S6W). The infra-red, ultra violet/visible (UV/ Vis) spectrum, nuclear magnetic resonance (NMR) and elemental micro-analysis of C, H, Nand S agreed with the characteristic of the tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex. The (W-S), (C-S) and (C=O) stretching frequencies were detected at 511, (1470 and 1035) and 1655 cm-1, respectively. The 1H NMR spectrum showed six protons in the complex. The 13C NMR showed only 7 signals for carbon atom in the benzene ring, ethylene groups and carboxylic acid pendant group due to the symmetry of the molecules. The reaction yield was about 50 %. Photolysis of acetone spiked H2O showed that the catalyst was able to produced 1.8μmol/h hydrogen.

Original languageEnglish
Pages (from-to)201-203
Number of pages3
JournalSains Malaysiana
Volume37
Issue number2
Publication statusPublished - Jun 2008

Fingerprint

Tungsten
Photolysis
Photocatalysts
Nuclear magnetic resonance
Molecules
Hydrogen
Microanalysis
Carboxylic Acids
Acetone
Benzene
Bromides
Stretching
Protons
Carbon
Infrared radiation
Atoms
Catalysts
Acids
Water
tetrapropylammonium

Keywords

  • Dye-sensitised solar cell
  • Hydrogen
  • Photolysis
  • Sunlight
  • Tungsten

ASJC Scopus subject areas

  • General

Cite this

@article{165d7cfd7ca44859ba96933a01ea6033,
title = "Synthesis and characterization of tris(1-carboxyl-2-phenyl-1,2-ethyleno dithiolenic-S,S') tungsten complex as photocatalyst for photolysis of H2O molecules",
abstract = "Tris (1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex is one of the most promising photocatalyst to be used in photolysis of water to produce hydrogen. The first step of the synthesis involves a metathesis reaction of tetrapropylammonium bromide [{(C3H7)4 N}Br] and ammonium tetrathiotungstate [(NH4)2WS4] to form a tetrapropylammonium tetrathiotungstate [{(C3 H7)4N}2WS4] (precursor). Then, the precursor was reacted with phenylacetylenecarboxylic acid (C9H6O2) to form tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex (C27H18 O2S6W). The infra-red, ultra violet/visible (UV/ Vis) spectrum, nuclear magnetic resonance (NMR) and elemental micro-analysis of C, H, Nand S agreed with the characteristic of the tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex. The (W-S), (C-S) and (C=O) stretching frequencies were detected at 511, (1470 and 1035) and 1655 cm-1, respectively. The 1H NMR spectrum showed six protons in the complex. The 13C NMR showed only 7 signals for carbon atom in the benzene ring, ethylene groups and carboxylic acid pendant group due to the symmetry of the molecules. The reaction yield was about 50 {\%}. Photolysis of acetone spiked H2O showed that the catalyst was able to produced 1.8μmol/h hydrogen.",
keywords = "Dye-sensitised solar cell, Hydrogen, Photolysis, Sunlight, Tungsten",
author = "Rahman, {Fadhli Hadana} and Arifin Khuzaimah and {Wan Daud}, {Wan Ramli} and Rusli Daik and Mohammad Kassim",
year = "2008",
month = "6",
language = "English",
volume = "37",
pages = "201--203",
journal = "Sains Malaysiana",
issn = "0126-6039",
publisher = "Penerbit Universiti Kebangsaan Malaysia",
number = "2",

}

TY - JOUR

T1 - Synthesis and characterization of tris(1-carboxyl-2-phenyl-1,2-ethyleno dithiolenic-S,S') tungsten complex as photocatalyst for photolysis of H2O molecules

AU - Rahman, Fadhli Hadana

AU - Khuzaimah, Arifin

AU - Wan Daud, Wan Ramli

AU - Daik, Rusli

AU - Kassim, Mohammad

PY - 2008/6

Y1 - 2008/6

N2 - Tris (1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex is one of the most promising photocatalyst to be used in photolysis of water to produce hydrogen. The first step of the synthesis involves a metathesis reaction of tetrapropylammonium bromide [{(C3H7)4 N}Br] and ammonium tetrathiotungstate [(NH4)2WS4] to form a tetrapropylammonium tetrathiotungstate [{(C3 H7)4N}2WS4] (precursor). Then, the precursor was reacted with phenylacetylenecarboxylic acid (C9H6O2) to form tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex (C27H18 O2S6W). The infra-red, ultra violet/visible (UV/ Vis) spectrum, nuclear magnetic resonance (NMR) and elemental micro-analysis of C, H, Nand S agreed with the characteristic of the tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex. The (W-S), (C-S) and (C=O) stretching frequencies were detected at 511, (1470 and 1035) and 1655 cm-1, respectively. The 1H NMR spectrum showed six protons in the complex. The 13C NMR showed only 7 signals for carbon atom in the benzene ring, ethylene groups and carboxylic acid pendant group due to the symmetry of the molecules. The reaction yield was about 50 %. Photolysis of acetone spiked H2O showed that the catalyst was able to produced 1.8μmol/h hydrogen.

AB - Tris (1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex is one of the most promising photocatalyst to be used in photolysis of water to produce hydrogen. The first step of the synthesis involves a metathesis reaction of tetrapropylammonium bromide [{(C3H7)4 N}Br] and ammonium tetrathiotungstate [(NH4)2WS4] to form a tetrapropylammonium tetrathiotungstate [{(C3 H7)4N}2WS4] (precursor). Then, the precursor was reacted with phenylacetylenecarboxylic acid (C9H6O2) to form tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex (C27H18 O2S6W). The infra-red, ultra violet/visible (UV/ Vis) spectrum, nuclear magnetic resonance (NMR) and elemental micro-analysis of C, H, Nand S agreed with the characteristic of the tris(1-carboxyl-2-phenyl-1,2-ethylenodithiolenic-S,S′) tungsten complex. The (W-S), (C-S) and (C=O) stretching frequencies were detected at 511, (1470 and 1035) and 1655 cm-1, respectively. The 1H NMR spectrum showed six protons in the complex. The 13C NMR showed only 7 signals for carbon atom in the benzene ring, ethylene groups and carboxylic acid pendant group due to the symmetry of the molecules. The reaction yield was about 50 %. Photolysis of acetone spiked H2O showed that the catalyst was able to produced 1.8μmol/h hydrogen.

KW - Dye-sensitised solar cell

KW - Hydrogen

KW - Photolysis

KW - Sunlight

KW - Tungsten

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M3 - Article

VL - 37

SP - 201

EP - 203

JO - Sains Malaysiana

JF - Sains Malaysiana

SN - 0126-6039

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