Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman
Two dithiocarbamates complexes which are Ni(II) N-butylmethyl dithiocarbamate, Ni[BuMedtc]2 and Ni(II) N-ethylbenzyl dithiocarbamate Ni[EtBenzdtc]2 were successfully synthesised using in situ method. Both complexes were characterised by FT-IR and UV-Vis spectroscopy, gravimetric analysis, molar cond...
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| Materiálatiipa: | Student Project |
| Giella: | English |
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Faculty of Applied Sciences
2017
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| Fáttát: | |
| Liŋkkat: | https://ir.uitm.edu.my/id/eprint/26804/1/PPb_NOR%20FARAH%20HIDA%20OTHMAN%20AS%20N%2017_5.pdf |
| _version_ | 1825736521851863040 |
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| author | Othman, Nor Farah Hida |
| author_facet | Othman, Nor Farah Hida |
| author_sort | Othman, Nor Farah Hida |
| collection | UITM |
| description | Two dithiocarbamates complexes which are Ni(II) N-butylmethyl dithiocarbamate, Ni[BuMedtc]2 and Ni(II) N-ethylbenzyl dithiocarbamate Ni[EtBenzdtc]2 were successfully synthesised using in situ method. Both complexes were characterised by FT-IR and UV-Vis spectroscopy, gravimetric analysis, molar conductivity, melting point and X-ray Crystallographic analysis. From IR spectroscopy, the important stretching bands which are v(C:.:.::.:::N) and v(c:.:.:.:.:.:.:·s) were appeared in the range of 1508-1518 cm-1 and 948-967 cm-1 respectively. The absence of v(N- H) bands after complexation in spectra of both complexes proved that the formation of complexes have been take place. For UV-Vis spectroscopy, there are absorption peak observed in the Ni[BuMedtc]2 and Ni[EtBenzdtc]2 at 325 nm and 330 nm respectively. It is indicated to the n-----+n* transitions. At more than 400 nm, there was absorption peak appeared which is indicated to the d-d transitions of Ni(II) complexes. The melting points of both complexes were higher than 300 °C. The molar conductivity showed that Ni[BuMedtc]2 and Ni[EtBenzdtc]2 were non-electrolyte. The gravimetric analysis showed the percentage of Ni(II) in Ni[BuMedtc]2 was 7.5% meanwhile in Ni[EtBenzdtc]2 was 5.98%. For X-ray crystallographic analysis, only Ni[BuMedtc]2 that was successfully produced single crystal that suitable for this analysis. The results obtained showed that Ni[BuMedtc]2 is four-coordination tetrahedral geometry and adopted to hexagonal system with the crystal parameter: a = 25.544(10) A, b = 25.544(10) A, c = 7.018(5) A, a= 90° , JJ= 90°, 5= 120° and Z = 9. The corrosion inhibition study showed that C2 has higher corrosion inhibitor efficiency than Ni[BuMedtc]2. From this study also showed that the inhibitor efficiency increased as the concentration of inhibitor increased. |
| first_indexed | 2024-03-06T02:04:05Z |
| format | Student Project |
| id | uitm.eprints-6804 |
| institution | Universiti Teknologi MARA |
| language | English |
| last_indexed | 2024-03-06T02:04:05Z |
| publishDate | 2017 |
| publisher | Faculty of Applied Sciences |
| record_format | dspace |
| spelling | uitm.eprints-68042019-12-16T08:16:39Z https://ir.uitm.edu.my/id/eprint/26804/ Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman Othman, Nor Farah Hida QD Chemistry Crystallography Two dithiocarbamates complexes which are Ni(II) N-butylmethyl dithiocarbamate, Ni[BuMedtc]2 and Ni(II) N-ethylbenzyl dithiocarbamate Ni[EtBenzdtc]2 were successfully synthesised using in situ method. Both complexes were characterised by FT-IR and UV-Vis spectroscopy, gravimetric analysis, molar conductivity, melting point and X-ray Crystallographic analysis. From IR spectroscopy, the important stretching bands which are v(C:.:.::.:::N) and v(c:.:.:.:.:.:.:·s) were appeared in the range of 1508-1518 cm-1 and 948-967 cm-1 respectively. The absence of v(N- H) bands after complexation in spectra of both complexes proved that the formation of complexes have been take place. For UV-Vis spectroscopy, there are absorption peak observed in the Ni[BuMedtc]2 and Ni[EtBenzdtc]2 at 325 nm and 330 nm respectively. It is indicated to the n-----+n* transitions. At more than 400 nm, there was absorption peak appeared which is indicated to the d-d transitions of Ni(II) complexes. The melting points of both complexes were higher than 300 °C. The molar conductivity showed that Ni[BuMedtc]2 and Ni[EtBenzdtc]2 were non-electrolyte. The gravimetric analysis showed the percentage of Ni(II) in Ni[BuMedtc]2 was 7.5% meanwhile in Ni[EtBenzdtc]2 was 5.98%. For X-ray crystallographic analysis, only Ni[BuMedtc]2 that was successfully produced single crystal that suitable for this analysis. The results obtained showed that Ni[BuMedtc]2 is four-coordination tetrahedral geometry and adopted to hexagonal system with the crystal parameter: a = 25.544(10) A, b = 25.544(10) A, c = 7.018(5) A, a= 90° , JJ= 90°, 5= 120° and Z = 9. The corrosion inhibition study showed that C2 has higher corrosion inhibitor efficiency than Ni[BuMedtc]2. From this study also showed that the inhibitor efficiency increased as the concentration of inhibitor increased. Faculty of Applied Sciences 2017 Student Project NonPeerReviewed text en https://ir.uitm.edu.my/id/eprint/26804/1/PPb_NOR%20FARAH%20HIDA%20OTHMAN%20AS%20N%2017_5.pdf Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman. (2017) [Student Project] <http://terminalib.uitm.edu.my/26804.pdf> (Unpublished) |
| spellingShingle | QD Chemistry Crystallography Othman, Nor Farah Hida Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman |
| title | Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman |
| title_full | Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman |
| title_fullStr | Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman |
| title_full_unstemmed | Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman |
| title_short | Synthesis, characterisation and anti-corrosion screening of ni(ii) n-butylmethyl dithiocarbamate and ni(ii) n-ethylbenzyl dithiocarbamate / Nor Farah Hida Othman |
| title_sort | synthesis characterisation and anti corrosion screening of ni ii n butylmethyl dithiocarbamate and ni ii n ethylbenzyl dithiocarbamate nor farah hida othman |
| topic | QD Chemistry Crystallography |
| url | https://ir.uitm.edu.my/id/eprint/26804/1/PPb_NOR%20FARAH%20HIDA%20OTHMAN%20AS%20N%2017_5.pdf |
| work_keys_str_mv | AT othmannorfarahhida synthesischaracterisationandanticorrosionscreeningofniiinbutylmethyldithiocarbamateandniiinethylbenzyldithiocarbamatenorfarahhidaothman |