Self-Assembly and Crystal Structure of a Novel Octadecametallic Square Box Composed of 52 Single Components

✍ Scribed by Rolf W. Saalfrank; Ingo Bernt; Frank Hampel

• Publisher: John Wiley and Sons
• Year: 2001
• Tongue: English
• Weight: 153 KB
• Volume: 7
• Category: Article
• ISSN: 0947-6539
• DOI: 10.1002/1521-3765(20010702)7:13<2770::aid-chem2770>3.0.co;2-#

✦ Synopsis

Reaction of divalent hexacoordinate metal ions with either tetradentate N-(2-piridylmethyl)iminodiethanol (3; H 2 L 4 ) or tridentate N-(2-chlorobenzyl)iminodiethanol

(5; H 2 L 5 ) resulted in the formation of two completely different products. Starting from nickel(ii) acetate and tetradentate 3, linear trinuclear complex [{Ni(HL 4 )} 2 -Ni(OAc) 2 (HCO 2 ) 2 ] (4) was formed. However, when tridentate 5 was allowed to react with cobalt(ii) acetate, the novel octadecametallic square box [Na 2 -{Co 4 (HL 5 ) 3 (OAc) 5 } 4 (HCO 2 ) 2 ] (6) was isolated. Chiral 6 has D 2 -molecule symmetry and crystalizes with both enantiomers in the unit cell. The structures of all new compounds were determined unequivocally by single-crystal X-ray analyses.