Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor
Three new bis-thiourea derivatives namely 1,2-bis(4-chlorobenzoylthiourea)-propane (S I), 1,4- bis(4-chlorobenzoylthiourea)-butane (S2) and 1,2-bis(4-chlorobenzoy1thiourea)-ethane (S3) were successfully synthesized by the reaction of the mixture of 4-chlorobenzoylchloride and ammonium thiocyanate...
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my.usim-81862015-05-18T08:40:33Z Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor Jumal, Juliana Bt. Three new bis-thiourea derivatives namely 1,2-bis(4-chlorobenzoylthiourea)-propane (S I), 1,4- bis(4-chlorobenzoylthiourea)-butane (S2) and 1,2-bis(4-chlorobenzoy1thiourea)-ethane (S3) were successfully synthesized by the reaction of the mixture of 4-chlorobenzoylchloride and ammonium thiocyanate with selected diamine compounds namely 1,2-diaminopropane, 1,4- diaminobutane and 1,2- diaminoethane. FTIR spectra of all the compounds show the presence of u (N-H), u (GO), u (C=S), u (C-N) stretching frequencies at 3173-3297 cm-', 1630-1672 cm", 843-846 cm-' and 1092-1094 cm-' respectively. Proton NMR spectra show the presence of three important chemical shifts in all the compounds : amino proton 6H (Nl) 11.33-1 1.38 ppm, 6H (N2) 10.77-10.86 ppm and 6H (aromatic proton) at 7.49-7.90 ppm. While "C NMR spetra show that the thiono, C=S and ketone, C=O chemical shifts at 180.06-1 81.18 ppm and 165.0- 167.29 ppm respectively. Solid-state ammonium ion sensors based on photocured poly(n-butyl acrylate) membrane with immobilized newly synthesized compounds were successfully used for the determination of ammonium ion. The sensor membrane does not require any plasticizer and the S1- and S2- based membrane electrodes gave near Nernstian responses (57.3 mV per decade and 50.6 mV per decade respectively) throughout the ammonium in concentration range of lo-' to loJ M with detection limits approaching 10" M ammonium ion. However, the S3- based electrode has a typical Nernstian response with a slope of of 35.6 mV per decade in the concentration range of 1 to 1 o-' M. 2015-05-18T08:40:33Z 2015-05-18T08:40:33Z 2009-09 Research Report http://ddms.usim.edu.my/handle/123456789/8186 en Universiti Sains Islam Malaysia |
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Three new bis-thiourea derivatives namely 1,2-bis(4-chlorobenzoylthiourea)-propane (S I), 1,4-
bis(4-chlorobenzoylthiourea)-butane (S2) and 1,2-bis(4-chlorobenzoy1thiourea)-ethane (S3)
were successfully synthesized by the reaction of the mixture of 4-chlorobenzoylchloride and
ammonium thiocyanate with selected diamine compounds namely 1,2-diaminopropane, 1,4-
diaminobutane and 1,2- diaminoethane. FTIR spectra of all the compounds show the presence of
u (N-H), u (GO), u (C=S), u (C-N) stretching frequencies at 3173-3297 cm-', 1630-1672
cm", 843-846 cm-' and 1092-1094 cm-' respectively. Proton NMR spectra show the presence of
three important chemical shifts in all the compounds : amino proton 6H (Nl) 11.33-1 1.38 ppm,
6H (N2) 10.77-10.86 ppm and 6H (aromatic proton) at 7.49-7.90 ppm. While "C NMR spetra
show that the thiono, C=S and ketone, C=O chemical shifts at 180.06-1 81.18 ppm and 165.0-
167.29 ppm respectively. Solid-state ammonium ion sensors based on photocured poly(n-butyl
acrylate) membrane with immobilized newly synthesized compounds were successfully used for
the determination of ammonium ion. The sensor membrane does not require any plasticizer and
the S1- and S2- based membrane electrodes gave near Nernstian responses (57.3 mV per
decade and 50.6 mV per decade respectively) throughout the ammonium in concentration range
of lo-' to loJ M with detection limits approaching 10" M ammonium ion. However, the S3-
based electrode has a typical Nernstian response with a slope of of 35.6 mV per decade in the
concentration range of 1 to 1 o-' M. |
format |
Research Report |
author |
Jumal, Juliana Bt. |
spellingShingle |
Jumal, Juliana Bt. Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor |
author_facet |
Jumal, Juliana Bt. |
author_sort |
Jumal, Juliana Bt. |
title |
Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor |
title_short |
Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor |
title_full |
Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor |
title_fullStr |
Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor |
title_full_unstemmed |
Synthesis Of Bis-Thiourea Derivatives And Studies On Its Application As Chemical Sensor |
title_sort |
synthesis of bis-thiourea derivatives and studies on its application as chemical sensor |
publisher |
Universiti Sains Islam Malaysia |
publishDate |
2015 |
url |
http://ddms.usim.edu.my/handle/123456789/8186 |
_version_ |
1645152360738062336 |
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13.18916 |