Extremely Bent Cyanide Coordination at a Preorganized Dinickel Site and Assembly of a Starlike Nonanuclear Complex from the Constrained Dinickel Building Blocks

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2001
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Meyer, Franc
Kaifer, Elisabeth
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Inorganic Chemistry. 2001, 40(18), pp. 4597-4603. ISSN 0020-1669. Available under: doi: 10.1021/ic010249x
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An extremely bent cyanide coordination at a dinickel scaffold is reported. Preorganization of two nickel ions is achieved by means of a compartmental dinucleating pyrazolate ligand L-, setting up a bimetallic coordination pocket with constrained metal−metal separation. The mixed-spin dinickel(II) complex LNi2(CN)(MeCN)2 (1) has been characterized by X-ray diffraction. The MeCN bound to the high-spin nickel(II) ion can be removed or replaced by other ligands, e.g., by the cyanide ligand of a tetracyanonickelate(II) moiety to give the starlike nonanuclear complex {[LNi2(CN)]4[Ni(CN)4]}(ClO4)6 (2) that contains four of the constrained pyrazolate-based dinickel(II) fragments grouped around a central tetracyanonickelate(II) unit, as revealed by X-ray crystallography. Spectral and electrochemical properties of 1 and 2 are reported, and the formation of reduced mixed-valent NiINiII species is investigated by IR and UV/vis spectroelectrochemistry.

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ISO 690MEYER, Franc, Rainer F. WINTER, Elisabeth KAIFER, 2001. Extremely Bent Cyanide Coordination at a Preorganized Dinickel Site and Assembly of a Starlike Nonanuclear Complex from the Constrained Dinickel Building Blocks. In: Inorganic Chemistry. 2001, 40(18), pp. 4597-4603. ISSN 0020-1669. Available under: doi: 10.1021/ic010249x
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@article{Meyer2001Extre-13814,
  year={2001},
  doi={10.1021/ic010249x},
  title={Extremely Bent Cyanide Coordination at a Preorganized Dinickel Site and Assembly of a Starlike Nonanuclear Complex from the Constrained Dinickel Building Blocks},
  number={18},
  volume={40},
  issn={0020-1669},
  journal={Inorganic Chemistry},
  pages={4597--4603},
  author={Meyer, Franc and Winter, Rainer F. and Kaifer, Elisabeth}
}
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