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Study of half sandwich platinum group metal complexes containing tetradentate N-donor ligand bearing two di-pyridylamine units linked by an aromatic spacer |
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| Authors: | Gajendra Gupta Bruno Therrien Kollipara Mohan Rao |
| Affiliation: | a Department of Chemistry, North Eastern Hill University, Shillong 793022, India b Service Analytique Facultaire, Université de Neuchâtel, Case Postale 158, CH-2009 Neuchâtel, Switzerland c Department of Chemistry, Indian Institute of Technology, Guwahati, India |
| Abstract: | A general approach for the preparation of dinuclear η5- and η6-cyclic hydrocarbon platinum group metal complexes, viz. [(η6-arene)2Ru2(NN∩NN)Cl2]2+ (arene = C6H6, 1; p-iPrC6H4Me, 2; C6Me6, 3), [(η5-C5Me5)2M2(NN∩NN)Cl2]2+ (M = Rh, 4; Ir, 5), [(η5-C5H5)2M2(NN∩NN)(PPh3)2]2+ (M = Ru, 6; Os, 7), [(η5-C5Me5)2Ru2(NN∩NN)(PPh3)2]2+ (8) and [(η5-C9H7)2Ru2(NN∩NN)(PPh3)2]2+ (9), bearing the bis-bidentate ligand 1,2-bis(di-2-pyridylaminomethyl)benzene (NN∩NN), which contains two chelating di-pyridylamine units connected by an aromatic spacer, is reported. The cationic dinuclear complexes have been isolated as their hexafluorophosphate or hexafluoroantimonate salts and characterized by use of a combination of NMR, IR and UV-vis spectroscopic methods and by mass spectrometry. The solid state structure of three derivatives, [2][SbF6]2, [3][PF6]2 and [4][PF6]2, has been determined by X-ray structure analysis. |
| Keywords: | Arene ruthenium compounds Cp&lowast rhodium complexes 1,2-Bis(di-2-pyridylaminomethyl)benzene ligand |
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