A New Polymer of Mixed-Anions Complex [Pb(phen)(O2CCH3)(O2NO)]n (phen = 1,10-phenanthroline)

✍ Scribed by Ali Morsali; Mahmod Payheghader; Saeid Salehi Monfared

• Publisher: John Wiley and Sons
• Year: 2002
• Tongue: German
• Weight: 89 KB
• Volume: 628
• Category: Article
• ISSN: 0372-7874
• DOI: 10.1002/1521-3749(200201)628:1<12::aid-zaac12>3.0.co;2-q

✦ Synopsis

The single crystal X-ray data of a mixed anions complex of Pb II with 1,10-Phenantroline, [Pb(phen)(O 2 CCH 3 )-(O 2 NO)], shows the complex to be polymeric as a result of acetate ligand bridging. The Pb atom has an asymmetrical eightfold coordination of two nitrogen atoms of the 1,10phenanthroline ligand and six oxygen atoms of the nitrate and acetate anions. The arrangement of the 1,10-phenantroline ligand, acetate and nitrate anions suggest a gap in the coordination around the Pb II ion, occupied possibly by a stereoactive lone pair of electrons on lead(II) where the coordination around the lead atoms is hemidirected. There is a p-p stacking interaction between the parallel aromatic rings of an adjacent chain in the compound which might help to increase the `gap' in the coordination around the Pb II ion.