Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak
Two tridentate Schiff base ligands, containing a donor set of ONN and ONS were prepared by the reaction of salicylaldehyde with 2-aminothiophenol and benzhydrazide with 2- benzoylpyridine. Four organotin(IV) complexes (3-6) of salicylaldehyde-2-aminothiophenol ligand (1) with RnSnCl4-n (n = 1, 2, 3)...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English |
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Universiti Malaysia Sarawak (UNIMAS)
2008
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| Online Access: | http://ir.unimas.my/id/eprint/1543/ http://ir.unimas.my/id/eprint/1543/6/Jasmina%20ft.pdf |
| _version_ | 1848834782653317120 |
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| author | Jasmina, Majit |
| author_facet | Jasmina, Majit |
| author_sort | Jasmina, Majit |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Two tridentate Schiff base ligands, containing a donor set of ONN and ONS were prepared by the reaction of salicylaldehyde with 2-aminothiophenol and benzhydrazide with 2- benzoylpyridine. Four organotin(IV) complexes (3-6) of salicylaldehyde-2-aminothiophenol ligand (1) with RnSnCl4-n (n = 1, 2, 3) have been synthesized in the presence of base in absolute chloroform in 1:1 mole ratio under nitrogen atmosphere. Another three organotin(IV)
complexes (7-9) of 2-benzoylpyridinebenzhydrazone ligand (2) with RnSnCl4-n (n = 1, 2, 3) have also been synthesized in the presence of base in absolute methanol in 1:1 mole ratio. Schiff base ligands (1-2) and their organotin(IV) complexes (3-9) have been characterized by
CHN analyses, UV-visible, molar conductance and FTIR spectral analyses. Among them, ligand (2) and complex (7) have also been determined by 1H NMR spectral studies. All
organotin(IV) complexes (3-9) are non-electrolytic in nature. Based on the FTIR and 1H NMR analyses, ligand (1) acts as dinegative tridentate ligand in the organotin(IV) complexes (3-6). Whereas the ligand (2) acts as uninegative tridentate nature in its organotin(IV) complexes (6- 9). A five-coordinated molecular structure has been proposed for the organotin(IV) complexes
(3-6) of ligand (1) while a six-coordinated molecular structure has been proposed for organotin(IV) complexes (7-9) of ligand (2). |
| first_indexed | 2025-11-15T05:57:27Z |
| format | Final Year Project Report / IMRAD |
| id | unimas-1543 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T05:57:27Z |
| publishDate | 2008 |
| publisher | Universiti Malaysia Sarawak (UNIMAS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-15432024-11-27T03:15:25Z http://ir.unimas.my/id/eprint/1543/ Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak Jasmina, Majit GE Environmental Sciences Two tridentate Schiff base ligands, containing a donor set of ONN and ONS were prepared by the reaction of salicylaldehyde with 2-aminothiophenol and benzhydrazide with 2- benzoylpyridine. Four organotin(IV) complexes (3-6) of salicylaldehyde-2-aminothiophenol ligand (1) with RnSnCl4-n (n = 1, 2, 3) have been synthesized in the presence of base in absolute chloroform in 1:1 mole ratio under nitrogen atmosphere. Another three organotin(IV) complexes (7-9) of 2-benzoylpyridinebenzhydrazone ligand (2) with RnSnCl4-n (n = 1, 2, 3) have also been synthesized in the presence of base in absolute methanol in 1:1 mole ratio. Schiff base ligands (1-2) and their organotin(IV) complexes (3-9) have been characterized by CHN analyses, UV-visible, molar conductance and FTIR spectral analyses. Among them, ligand (2) and complex (7) have also been determined by 1H NMR spectral studies. All organotin(IV) complexes (3-9) are non-electrolytic in nature. Based on the FTIR and 1H NMR analyses, ligand (1) acts as dinegative tridentate ligand in the organotin(IV) complexes (3-6). Whereas the ligand (2) acts as uninegative tridentate nature in its organotin(IV) complexes (6- 9). A five-coordinated molecular structure has been proposed for the organotin(IV) complexes (3-6) of ligand (1) while a six-coordinated molecular structure has been proposed for organotin(IV) complexes (7-9) of ligand (2). Universiti Malaysia Sarawak (UNIMAS) 2008 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/1543/6/Jasmina%20ft.pdf Jasmina, Majit (2008) Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak. [Final Year Project Report / IMRAD] (Unpublished) |
| spellingShingle | GE Environmental Sciences Jasmina, Majit Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak |
| title | Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak |
| title_full | Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak |
| title_fullStr | Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak |
| title_full_unstemmed | Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak |
| title_short | Water quality and phytoplankton assessment in three selected waterfalls of Kuching and Serian districts, Sarawak |
| title_sort | water quality and phytoplankton assessment in three selected waterfalls of kuching and serian districts, sarawak |
| topic | GE Environmental Sciences |
| url | http://ir.unimas.my/id/eprint/1543/ http://ir.unimas.my/id/eprint/1543/6/Jasmina%20ft.pdf |