Synthesis and characterization of Co(II) and Mn(II) [M3L3] triangles

• Published in: Journal of inclusion phenomena and macrocyclic chemistry Vol. 94; no. 3-4; pp. 175 - 182
• Main Authors: Dais, Tyson N., Brown, Michael J., Coles, Martyn P., Laur, François, Price, Jason R., Rowlands, Gareth J., Plieger, Paul G.
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 15-08-2019; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Crystallography and Scattering Methods; Crystals; Food Science; Ligands; Metallography; Organic Chemistry; Original Article; Single crystals; X ray analysis; Cyclohelicates; Metallo-macrocycle; Cobalt; Pyrazine; Manganese
• ISSN: 1388-3127; 1573-1111
• DOI: 10.1007/s10847-019-00904-y

We report an improved method to make the ligand
N,N′
-(pyrazine-2,5-diylbis(methanylylidene))bis(2-(pyridin-2-yl)ethanamine) (
L
) and the subsequent complexation of this ligand to make the triangular metallo-macrocycles [Co
3
L
3
](ClO
4
)
6
·2H
2
O (
C1
·2H
2
O) and [Mn
3
L
3
](ClO
4
)
6
·3H
2
O (
C2
·3H
2
O). Single crystal X-ray analysis of both trimeric circular helicates reveal the complexes pack in enantiomeric pairs in close synergy with the accompanying anions.
Graphical abstract