Manifestation of diamagnetic chemical shifts of proton NMR signals by an anisotropic shielding effect of nitrate anions |
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| Authors: | Himansu Sekhar Sahoo S. Mahalakshmi Md. Hedayetullah Mir R. Raghunathan |
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| Affiliation: | Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, India |
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| Abstract: | A remarkable upfield shift of the pyα protons of complexed 2,2′-bipyridine in [cis-Pd(bpy)(NO3)2] is observed which is considered to originate from the anisotropic influence of suitably positioned coordinated nitrate anions around the Pd(II) centre of the molecule. A typical complexation-induced downfield shift is observed for the NH2 protons in [cis-Pd(en)(NO3)2] where ‘en’ stands for ethylenediamine. |
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| Keywords: | NMR spectroscopy Nitrate anion Diamagnetic shift Anisotropy shielding Pd(II) complex |
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