Ligand Synthesis and Metal Complex Formation of 1,2,3-Triaminopropane

✍ Scribed by Anja Zimmer; Iris Müller; Guido J. Reiß; Andrea Caneschi; Dante Gatteschi; Kaspar Hegetschweiler

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 169 KB
• Volume: 1998
• Category: Article
• ISSN: 1434-1948
• DOI: 10.1002/(sici)1099-0682(199812)1998:12<2079::aid-ejic2079>3.0.co;2-b

✦ Synopsis

A series of linear primary polyamines H 2 N-CH 2 -(CH-NH 2 ) n -was established by potentiometric titrations and was compared with previous reports. The crystal structure of the CH 2 -NH 2 (1 Յ n Յ 3) was prepared from the corresponding polyalcohols. The polyamines were isolated as HCl adducts Cu complex [CuL 2 ]Cl 2 exhibited a chain structure with a five-coordinate Cu II centre in which two amino groups of the and the acidity constants in aqueous solution were determined. The crystal structure of the fully protonated triamine ligands are coordinated to one Cu centre, while the third amino group of one of the ligands is bonded to a tetraamine (n = 2) was elucidated by an X-ray diffraction study. Complex formation of the triamine (n = 1) with Ni 2+ , neighbouring Cu atom. The compound shows weak antiferromagnetic coupling interactions between the Cu II Cu 2+ , Zn 2+ , Cd 2+ was re-investigated in aqueous solution. The pH-dependent formation of a variety of species M x L y H z centres within the chain.