Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper
Two flexidentate Schiff-base ligands condensed from salicylaldehyde or 5-chlorosalicylaldehyde with N-(3-aminopropyl)morpholine were prepared in situ and reacted with Zn(II) and Cu(II) salts. Upon complexation, the Schiff bases underwent deprotonation at hydroxyl to act as mono-anionic ligands. When...
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| Format: | Article |
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2012
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| author | Hisham, N.A.I. Hadi, H.A. Ali, Hapipah Mohd Khaledi, H. |
| author_facet | Hisham, N.A.I. Hadi, H.A. Ali, Hapipah Mohd Khaledi, H. |
| author_sort | Hisham, N.A.I. |
| collection | UM |
| description | Two flexidentate Schiff-base ligands condensed from salicylaldehyde or 5-chlorosalicylaldehyde with N-(3-aminopropyl)morpholine were prepared in situ and reacted with Zn(II) and Cu(II) salts. Upon complexation, the Schiff bases underwent deprotonation at hydroxyl to act as mono-anionic ligands. When a ligand : metal ratio of 2 : 1 was applied, the deprotonated Schiff bases coordinated metal ions through phenolate and imine in a square-planar or tetrahedral geometry. In contrast, 5-chlorosalicylaldimine reacted with the metal ions in a 1 : 1 ratio to form complexes wherein morpholine nitrogen also participates in an N,N,O-tridentate coordination mode. The structures of the complexes were characterized by spectroscopic methods and single-crystal X-ray diffraction. |
| first_indexed | 2024-03-06T05:13:37Z |
| format | Article |
| id | um.eprints-5141 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:13:37Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | um.eprints-51412019-01-30T01:28:18Z http://eprints.um.edu.my/5141/ Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper Hisham, N.A.I. Hadi, H.A. Ali, Hapipah Mohd Khaledi, H. QD Chemistry Two flexidentate Schiff-base ligands condensed from salicylaldehyde or 5-chlorosalicylaldehyde with N-(3-aminopropyl)morpholine were prepared in situ and reacted with Zn(II) and Cu(II) salts. Upon complexation, the Schiff bases underwent deprotonation at hydroxyl to act as mono-anionic ligands. When a ligand : metal ratio of 2 : 1 was applied, the deprotonated Schiff bases coordinated metal ions through phenolate and imine in a square-planar or tetrahedral geometry. In contrast, 5-chlorosalicylaldimine reacted with the metal ions in a 1 : 1 ratio to form complexes wherein morpholine nitrogen also participates in an N,N,O-tridentate coordination mode. The structures of the complexes were characterized by spectroscopic methods and single-crystal X-ray diffraction. 2012 Article PeerReviewed Hisham, N.A.I. and Hadi, H.A. and Ali, Hapipah Mohd and Khaledi, H. (2012) Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper. Journal of Coordination Chemistry, 65 (17). pp. 2992-3006. ISSN 0095-8972, DOI https://doi.org/10.1080/00958972.2012.708412 <https://doi.org/10.1080/00958972.2012.708412>. http://www.tandfonline.com/doi/pdf/10.1080/00958972.2012.708412 10.1080/00958972.2012.708412 |
| spellingShingle | QD Chemistry Hisham, N.A.I. Hadi, H.A. Ali, Hapipah Mohd Khaledi, H. Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper |
| title | Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper |
| title_full | Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper |
| title_fullStr | Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper |
| title_full_unstemmed | Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper |
| title_short | Coordination modes of two flexidentate salicylaldimine ligands derived from N-(3-aminopropyl)morpholine toward zinc and copper |
| title_sort | coordination modes of two flexidentate salicylaldimine ligands derived from n 3 aminopropyl morpholine toward zinc and copper |
| topic | QD Chemistry |
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