COMPARATIVE STUDIES OF SOLVATOCHROMISM BEHAVIOUR OF COPPER(I1) AND NICKEL(I1) SCHIFF BASE COMPLEXES
A series of Schiff Bases of Ni(II) and Cu(II) using acetylacetone (acac), salicylaldehyde (sal), ethylenediamine (en), and o-phenylendiarnine (dabe) were prepared and characterized. The electronic spectra of some copper chelates in various organic solvents depend strongly on the solvent used and the...
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| Language: | English |
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University of Tehran
1999-12-01
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| Series: | Journal of Sciences, Islamic Republic of Iran |
| Online Access: | https://jsciences.ut.ac.ir/article_31309_2538d141a69a158645d94157d0eecd23.pdf |
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| description | A series of Schiff Bases of Ni(II) and Cu(II) using acetylacetone (acac),
salicylaldehyde (sal), ethylenediamine (en), and o-phenylendiarnine (dabe) were
prepared and characterized. The electronic spectra of some copper chelates in various
organic solvents depend strongly on the solvent used and the d-d band of Cu(II) shifts
to red with the increase of the Donor Number (DN) of solvent. The color changes from
blue to green are observed. The mechanism for solvatochromism is discussed in terms
of conformational changes and solvent coordination. Among the nickel complexes,
Ni (saloph) is brownish red in chloroform and green in pyridine, probably due to the
coordination of two pyridine molecules |
| format | Article |
| id | doaj-art-29e30a79e4474f3aad24c51207d017ff |
| institution | OA Journals |
| issn | 1016-1104 2345-6914 |
| language | English |
| publishDate | 1999-12-01 |
| publisher | University of Tehran |
| record_format | Article |
| series | Journal of Sciences, Islamic Republic of Iran |
| spelling | doaj-art-29e30a79e4474f3aad24c51207d017ff2025-08-20T02:25:51ZengUniversity of TehranJournal of Sciences, Islamic Republic of Iran1016-11042345-69141999-12-0110431309COMPARATIVE STUDIES OF SOLVATOCHROMISM BEHAVIOUR OF COPPER(I1) AND NICKEL(I1) SCHIFF BASE COMPLEXESA series of Schiff Bases of Ni(II) and Cu(II) using acetylacetone (acac), salicylaldehyde (sal), ethylenediamine (en), and o-phenylendiarnine (dabe) were prepared and characterized. The electronic spectra of some copper chelates in various organic solvents depend strongly on the solvent used and the d-d band of Cu(II) shifts to red with the increase of the Donor Number (DN) of solvent. The color changes from blue to green are observed. The mechanism for solvatochromism is discussed in terms of conformational changes and solvent coordination. Among the nickel complexes, Ni (saloph) is brownish red in chloroform and green in pyridine, probably due to the coordination of two pyridine moleculeshttps://jsciences.ut.ac.ir/article_31309_2538d141a69a158645d94157d0eecd23.pdf |
| spellingShingle | COMPARATIVE STUDIES OF
SOLVATOCHROMISM BEHAVIOUR OF
COPPER(I1) AND NICKEL(I1) SCHIFF BASE
COMPLEXES Journal of Sciences, Islamic Republic of Iran |
| title | COMPARATIVE STUDIES OF
SOLVATOCHROMISM BEHAVIOUR OF
COPPER(I1) AND NICKEL(I1) SCHIFF BASE
COMPLEXES |
| title_full | COMPARATIVE STUDIES OF
SOLVATOCHROMISM BEHAVIOUR OF
COPPER(I1) AND NICKEL(I1) SCHIFF BASE
COMPLEXES |
| title_fullStr | COMPARATIVE STUDIES OF
SOLVATOCHROMISM BEHAVIOUR OF
COPPER(I1) AND NICKEL(I1) SCHIFF BASE
COMPLEXES |
| title_full_unstemmed | COMPARATIVE STUDIES OF
SOLVATOCHROMISM BEHAVIOUR OF
COPPER(I1) AND NICKEL(I1) SCHIFF BASE
COMPLEXES |
| title_short | COMPARATIVE STUDIES OF
SOLVATOCHROMISM BEHAVIOUR OF
COPPER(I1) AND NICKEL(I1) SCHIFF BASE
COMPLEXES |
| title_sort | comparative studies of solvatochromism behaviour of copper i1 and nickel i1 schiff base complexes |
| url | https://jsciences.ut.ac.ir/article_31309_2538d141a69a158645d94157d0eecd23.pdf |