Vb. Arion et al., TEMPLATE SYNTHESIS, STRUCTURE AND PROPERTIES OF A BIS(MACROCYCLIC) DINICKEL(II) COMPLEX BASED ON A 14-MEMBERED HEXAAZA UNIT, Journal of the Chemical Society. Dalton transactions, (13), 1994, pp. 1913-1916
Template condensation of [Ni2L2]{H-6L2 = akis[1-(3-methylisothiosemica
rbazono)ethyl]ethane} with 3-ethoxyacrylaldehyde in dimethylformamide
resulted in a new type of dinickel(II) bis(macrocyclic) complex, in wh
ich two hexaazamacrocyclic subunits are linked by a single C-C bond. T
he complex was characterized by means of spectral analysis (UV/VIS, H-
1 NMR, electron-impact mass), magnetic susceptibility measurements and
X-ray analysis. Peculiarities of the crystal structure in comparison
to related mono- and bi-nuclear species were revealed.