Planar copper and nickel triangles with a guanidine-derived ligandElectronic supplementary information (ESI) available: Additional structural and magnetic data. CCDC 1403544 and 1403545 for [Cu3] and [Ni3], respectively. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c5qi00085h
A novel guanidine-derived ligand with three tetradentate N 4 coordination sites and its trinuclear copper and nickel complexes, [Cu 3 ] and [Ni 3 ], were synthesized. X-ray structural analyses of [Cu 3 ] and [Ni 3 ] reveal the complexes to have planar triangular structures with pseudo C 3 symmetry....
Gespeichert in:
Hauptverfasser: | , , , |
---|---|
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
Zusammenfassung: | A novel guanidine-derived ligand with three tetradentate N
4
coordination sites and its trinuclear copper and nickel complexes, [Cu
3
] and [Ni
3
], were synthesized. X-ray structural analyses of [Cu
3
] and [Ni
3
] reveal the complexes to have planar triangular structures with pseudo
C
3
symmetry. Magnetic measurements for [Cu
3
] and [Ni
3
] complexes indicate that antiferromagnetic interactions are operative in both complexes with intratriangle exchange coupling constants of
g
= 2.08(1),
J
= −130(1) cm
−1
for [Cu
3
], and
g
= 2.18(1),
J
= −14.9(1) cm
−1
for [Ni
3
]. [Cu
3
] has a doublet spin ground state at low temperature, while the magnetic susceptibility data and magnetization curve suggest that the ground state of [Ni
3
] is spin singlet.
A novel guanidine-derived ligand with three tetradentate N
4
coordination sites and its trinuclear copper and nickel complexes, [Cu
3
] and [Ni
3
], were synthesized. X-ray structural analyses of [Cu
3
] and [Ni
3
] reveal the complexes to have planar triangular structures with pseudo
C
3
symmetry. |
---|---|
ISSN: | 2052-1553 |
DOI: | 10.1039/c5qi00085h |