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Dinuclear Nickel(II) Complex of a Novel Oxamido Ligand as a Chelating Agent
The dinuclear nickel(II) complex of an oxamide ligand reacted as a chelating ligand with transition metal cations to yield either tetra- or polymetallic complexes. The parent oxamido ligand is decadentate hexabasic and contains two symmetrical sets of N 2 O 3 coordinating sites. The inner N 2 O 3 si...
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| Published in: | Synthesis and reactivity in inorganic and metal-organic chemistry 1997-04, Vol.27 (4), p.465-478 |
|---|---|
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Citations: | Items that this one cites |
| Online Access: | Get full text |
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| Summary: | The dinuclear nickel(II) complex of an oxamide ligand reacted as a chelating ligand with transition metal cations to yield either tetra- or polymetallic complexes. The parent oxamido ligand is decadentate hexabasic and contains two symmetrical sets of N
2
O
3
coordinating sites. The inner N
2
O
3
sites of each set are coordinated to a nickel(II) cation. The outer O
2
O sites are available to coordinate to other metal cations. The reactions of the parent complex [(H
2
L)Ni
2
].EtOH with Ni(II), Co(II), Mn(II), UO
2
(VI) and Fe(III) cations yielded the following products: [LNi
2
M
2
Cl
2
(OH
2
)
4
], M = Ni(II) or Mn(II), [(HL)Ni
2
CoCl(OH
2
)
2
]
n
, [LNi
2
UO
2
(MeOH)]
n
and [LNi
2
Fe
3
Cl
7
(OH
2
)
2
]
2
. The products were characterized by elemental analyses, IR, UV-Visible and mass spectra. In addition the values of their magnetic moments indicated antiferromagnetic interactions between neighbouring metal cations. The magnetic exchange takes place via the oxamido linkage and either the chlorine and/or oxygen bridges.
Referee I: T. C. Strekas
Referee II: L. J. Boucher |
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| ISSN: | 0094-5714 1532-2440 |
| DOI: | 10.1080/00945719708000202 |