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1H, 13C, 15N NMR coordination shifts in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′:6′,2″-terpyridine

✍ Scribed by Leszek Pazderski; Tomasz Pawlak; Jerzy Sitkowski; Lech Kozerski; Edward Szlyk

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
122 KB
Volume
49
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^1^H, ^13^C and ^15^N NMR studies of iron(II), ruthenium(II) and osmium(II) bis‐chelated cationic complexes with 2,2′:6′,2″‐terpyridine ([M(terpy)~2~]^2+^; M = Fe, Ru, Os) were performed. Significant shielding of nitrogen‐adjacent H(6) and deshielding of H(3′), H(4′) protons were observed, both effects being mostly expressed for Fe(II) compounds. The metal‐bonded nitrogens were shielded, this effect being much larger for the outer N(1), N(1″) than the inner N(1′) atoms, and enhanced in the Fe(II) → Ru(II) → Os(II) series. Copyright © 2011 John Wiley & Sons, Ltd.

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