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http://nopr.niscpr.res.in/handle/123456789/16132| Title: | Synthesis and characterisation of manganese(II) complexes with bis(2-benzimidazolyl)propane and bis(2-benzimidazolyl) butane |
| Authors: | Arora, Veena Gupta, Manisha Mathur, Pavan |
| Issue Date: | Dec-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Flexible bidentate ligands 1,3-bis(2-benzimidazolyl)propane [GAB] and 1,4- bis(2-benzimidazolyl)butane [AAB] have been synthesized and a series of manganese (II) complexes of general composition [MnL2X2].nH2O have been prepared where (L = GAB. AAB) and X is an exogenous anionic ligand (X = HCOO- , CH3COO- , CI- , SCN- ). Using low temperature EPR studies. D and E parameters have been calculated for these complexes. which indicate a rhombic distortion of the six co-ordinaated complexes. The ligand AAB provides a larger D, E implying a greater ligand field distortion in comparison to the ligand GAB. Cyclic voltammetric results show an irreversible oxidation of Mn(II) to Mn(III) for all complexes except the complexes [Mn(AAB)2(SCN)2] and [Mn(GAB)2CI2. The CV data indicate that the SCN- anion tends to stabilize the Mn(II ) oxidation state relative to the CI-. |
| Page(s): | 1219-1222 |
| Appears in Collections: | IJC-A Vol.38A(12) [December 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 38A(12) 1219-1222.pdf | 845.1 kB | Adobe PDF | View/Open |
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