1H NMR assignment corrections and 1H, 13C, 15N NMR coordination shifts structural correlations in Fe(II), Ru(II) and Os(II) cationic complexes with 2,2′‐bipyridine and 1,10‐phenanthroline

• DOI: 10.1002/mrc.2600
• Publication Date: 2010-04-13T14:06:31Z
• Authors: Leszek Pazderski; Tomasz Pawlak; Jerzy Sitkowski; Lech Kozerski; Edward Szłyk
• Keywords: Osmium; Cationic polymerization

Abstract 1 H, 13 C and 15 N NMR studies of iron(II), ruthenium(II) osmium(II) tris‐chelated cationic complexes with 2,2′‐bipyridine 1,10‐phenanthroline the general formula [M(LL) 3 ] 2+ (M = Fe, Ru, Os; LL bpy, phen) were performed. Inconsistent literature H signal assignments corrected. Significant shielding nitrogen‐adjacent protons [H(6) in H(2) phen] metal‐bonded nitrogens was observed, being enhanced series Ru(II) → Os(II) Fe(II) for bpy phen both nuclei. The carbons are deshielded, effect increasing order Fe(II). Copyright © 2010 John Wiley & Sons, Ltd.