Repozytorium

Template synthesis of square-planar nickel(II) and copper(III) complexes based on hydrazide ligands.

Autorzy

Igor O. Fritsky

Henryk Kozłowski

P. J. Sadler

O. P. Yefetova

Jolanta Świątek-Kozłowska

Valentina A. Kalibabchuk

Tadeusz Głowiak

Rok wydania

1998

Czasopismo

Journal of the Chemical Society, Dalton Transactions

Strony

3269-3274

DOI

10.1039/A802451K

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

Ring-closure reactions between anionic complexes of nickel(II) and copper(II) with the hydrazide ligands (2-hydroxyiminopropionohydrazide [CH3C(NOH)C(O)NHNH2, H2poh] and oxalodihydrazide [NH2NHC(O)C(O)NHNH2, H2oxh] and formaldehyde have been investigated. The isolated compounds were characterised by means of NMR, IR spectroscopy, cyclic voltammetry and single crystal X-ray analysis. In the case of the copper complex with H2oxh the cyclisation is accompanied by oxidation of the central atom to the +3 state with oxygen in the air. The central atoms in the complexes are square-planar with four nitrogen atoms belonging to the deprotonated hydrazide (Cu) or two hydrazide and two oxime (Ni) groups. The cyclic 1,3,5-oxodiazinane fragment in the complexes adopts a chair conformation which is retained in solution.

Adres publiczny

https://doi.org/10.1039/A802451K

Strona internetowa wydawcy

https://www.rsc.org/

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