Protonated 4′-(2-pyridyl)-2,2′:6′,2″-terpyridine and its Fe(II) bischelates: Syntheses and molecular structures |
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| Authors: | Sumanta Kumar Padhi |
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| Institution: | Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781 039, India |
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| Abstract: | Compounds of the molecular formulae, LH3](NO3)3 (1), Fe(LH)2](PF6)4·5H2O (2), Fe(L)2]Fe(L)(LH)](PF6)5·H2O (3), Fe(L)2]Fe(L)(LH)](BF4)5·2H2O (4) and Fe(L)2](Cr2O7)·6H2O (5) have been synthesized using 4′-(2-pyridyl)-2,2′:6′,2″-terpyridine (L). The molecular structures of all the compounds were determined. The Fe(II) complexes are high spin in nature at room temperature and upon cooling a gradual spin-transition is observed. Among 1-5, hydrogen-bonding, π···π, and anion···π interactions as well as water tetramer and pentamer are present in the molecular packing. |
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| Keywords: | Terpyridine π· · · π interaction Anion· · · π interaction Magnetism Water tetramer Water pentamer |
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