Nitrosodicyanomethanide Complexes of Cu(II) and Co(II) with Methylpyrazoles; Nucleophilic Additions and Coligand Isomers

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Title:Nitrosodicyanomethanide Complexes of Cu(II) and Co(II) with Methylpyrazoles; Nucleophilic Additions and Coligand Isomers
Creators:
Hvastijová, Mária
Kohout, Jiří
Kováčová, Darina
Skirl, Renate
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 59, 12, pp. 2611-2620

Abstract

<p>From the M(II) ONC(CN)<sub>2</sub><sup>-</sup>-L systems, where M = Cu or Co and L = pyrazole (pz), 3(5)-methylpyrazole (mpz), 3,4,5-trimethylpyrazole (tmpz), or indazole (inz), the following new compounds were prepared: [M{ONC(CN)<sub>2</sub>}<sub>2</sub>L<sub>4</sub>] with M = Cu, L = pz; M = Co, L = pz, mpz, inz; [M{ONC(CN)<sub>2</sub>}<sub>2</sub>L<sub>2</sub>] with M = Cu, L = tmpz, inz; M = Co, L = tmpz; [M{L.ONC(CN)<sub>2</sub>}<sub>2</sub>] with M = Cu, L = mpz; M = Co, L = tmpz. All compounds were studied by thermal decomposition and by infrared and electronic spectroscopy, the Cu(II) complexes also by ESR spectroscopy. Six-coordinate octahedral or pseudooctahedral structures were assigned to complexes of all the types. Nitrosodicyanomethanide is nitroso-<i>N</i>-bonded and in the [M{OCN(CN)<sub>2</sub>}<sub>2</sub>L<sub>2</sub>] complexes is involved in the bidentate bridging. The [M{L.ONC(CN)<sub>2</sub>}<sub>2</sub>] complexes contain anionic chelate ligands formed by nucleophilic addition of the <i>N</i>(imine)-<i>C</i>(cyano) type in the M(II) coordination sphere. The first coligand isomer pair with Co(II) central atom is presented.

Title:Nitrosodicyanomethanide Complexes of Cu(II) and Co(II) with Methylpyrazoles; Nucleophilic Additions and Coligand Isomers
Creators:
Hvastijová, Mária
Kohout, Jiří
Kováčová, Darina
Skirl, Renate
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:59
Number:12
Page Range:pp. 2611-2620
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19942611UNSPECIFIED
ID Code:680
Item Type:Article
Deposited On:06 Feb 2009 17:03
Last Modified:06 Feb 2009 16:03

Citation

Hvastijová, Mária; Kohout, Jiří; Kováčová, Darina; Skirl, Renate (1994) Nitrosodicyanomethanide Complexes of Cu(II) and Co(II) with Methylpyrazoles; Nucleophilic Additions and Coligand Isomers. Collection of Czechoslovak Chemical Communications, 59 (12). pp. 2611-2620. ISSN 0010-0765

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