SCHEDULED MAINTENANCE
Copper(II)-templated assembly of tetranuclear grid-like complexes from simple pyridine–pyrazole ligands
Abstract
Reaction of Cu(O
2
CMe)
2
·H
2
O with
HL
1
[3-(2-pyridyl)pyrazole] or HL
2
[6-(3-pyrazolyl)-2,2′-bipyridine] and NH
4
PF
6
followed by crystallisation of the crude products from dmf–ether
affords
[Cu
4
L
1
6
(dmf)
2
][PF
6
]
2
1 and
[Cu
4
L
2
4
(dmf)
4
]-
[PF
6
]
4
2 respectively, in which the deprotonated
pyrazolyl groups act as bridging ligands and the 2 × 2
grid–like architectures are a result of the preference of the
Cu
II
ions for elongated square-pyramidal coordination
geometries.
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