Synthesis and reactivity of an unsymmetrically substituted 16-membered macrocyclic complex of nickel(II) and the crystal structure of its acyclic precursor, (3-acetyl-10-methyl-5,9-diazatrideca-3,8-diene-2, 12-dionato)nickel(II)
✍ Scribed by James H. Cameron; Kevin J. McCullough; Elinor L. Scott
- Publisher
- Springer
- Year
- 1996
- Tongue
- English
- Weight
- 598 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0340-4285
No coin nor oath required. For personal study only.
✦ Synopsis
The synthesis of the new unsymmetrically substituted 16membered macrocyclic complex, (3-acetyl-2,10,12-trimethyl-l, 5, 9, 13-tetraazacyclohexadeca-1, 3, 9, ll-tetraenato)-Ni H, by template-controlled macrocyclization is reported. This complex has a single nucleophilic site available to react with electrophilic reagents. The crystal structure of the acyclic precursor, (3-acetyl-10-methyl-5,9diazatrideca-3,8-diene-2,12-dionato)Ni xt shows that in the solid state it exists as a pair of enantiomers, arising from the presence of two possible skew boat conformations adopted by the six-membered saturated metallochelate ring present in the molecule.