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A NOVEL TYPE OF NUCLEOPHILIC ADDITION IN THE CENTRAL ATOM COORDINATION SPHERE; REACTION BETWEEN A NON-LINEAR PSEUDOHALIDE ANION AND A PYRAZOLE-TYPE BASE
Ist Teil von
Journal of coordination chemistry, 1987-02, Vol.15 (4), p.409-411
Ort / Verlag
New York, NY: Taylor & Francis Group
Erscheinungsjahr
1987
Quelle
Taylor & Francis Journals Auto-Holdings Collection
Beschreibungen/Notizen
In recent years nucleophilic addition between the cyanate group and pyrazole or its methylderivative in the Cu(1I) coordination sphere has been thoroughly From the systems Cu(I1)-NCO-pyrazole-type ligand as well as the compounds in which a nucleophilic reaction was realized, isomeric cyanato complexes were also separated ("coligand" icomerisrn). Earlier investigations showed that the non-linear pseudohalide anions dicyanamide, N(CN), and tricyanmethanide, C(CN), closely resemble the cyanate ligand.5 Based on the pseudochalcogen character of NCN and C(CN), groups: these pseudohalides may be classified as pseudochalcogenates. We supposed therefore that in systems with these non-linear pseudohalides nucleophilic addition also could take place and the occurence of further coligand isomers could be expected.