Synthesis, structure and spectroscopic properties of nickel(II) macrocyclic and open-chain complexes resulted from 1-phenyl-bulane-1,3-dione mono-S-methylisothiosemicarbazone template self-condensation
Ji. Gradinaru et al., Synthesis, structure and spectroscopic properties of nickel(II) macrocyclic and open-chain complexes resulted from 1-phenyl-bulane-1,3-dione mono-S-methylisothiosemicarbazone template self-condensation, INORG CHIM, 313(1-2), 2001, pp. 30-36
Self-condensation of 1-phenyl-butane-1,3-dione mono-S-methylisothiosemicarb
azone (6) in the presence of nickel(II) acetate in methanol gives rise to a
mixture of two complexes: [2,9-bis(methylthio)-5,13-dimethyl-7,14-tradeca-
2,4,6,9,11, 13-hexaenato(2-)N-1,N-4,N-8,N-11]nickel(II) (7) and [1-amino-1,
6-bis(methylthio)-4,9-dimethy-11-phenyl-2,3,4,7,8-pentaazaundeca-1,3,6,8,10
-pentaenato(-)-11-olato(-)N-2,N-4,N-8,O]nickel(II) (8). Both the macrocycli
c complex 7 and the open-chain chelate 8 are characterised by X-ray diffrac
tion methods, which reveal their square-planar structure. Electronic, IR, N
MR, electron impact mass spectra and cyclic voltammograms of new compounds
are also reported. (C) 2001 Elsevier Science B.V. All rights reserved.