Template synthesis of a new dinuclear nickel(II) complex of a bis(macrobicyclic) ligand

Synthesis and Characterization of New Polyaza Non-macrocyclic and Macrocyclic Nickel(II) Complexes Containing One 1,3-Diazacyclohexane Ring

“…Metal template condensation reactions involving coordinated amines and formaldehyde are known to be useful for the preparation of various types of polyaza non-macrocyclic and macrocyclic complexes containing N-CH 2 -N and/or N-CH 2 -C(R)(NO 2 )-CH 2 -N linkages. [1][2][3][4][5][6][7][8][9][10][11][12] 4+ containing N-CH 2 -N linkages have been prepared by the reactions (Eq. (1)-(3)) of formaldehyde and appropriate amines in the presence of the metal ion.…”

The template synthesis, spectral characterization and thermal behavior of new binuclear Schiff base complexes derived from N-aminopyrimidine with 2,3-butandion

“…1,2 The majority of the ligand systems employed in model studies are derived from Schiff bases. 3 Amino heterocycles containing two or more potential donor centers play an important role in the study of comperetive reactivity of ambidentate ligand systems.…”

The metal directed assembly of a trinuclear macrocyclic copper(II) complex

“…If a difunctional acid, bearing two sets of acidic methylene or primary amino groups is employed, then one may close two different ring systems connected through the locking group. However, this approach has rarely been successful, these examples involving the locking groups propane-1,3-diamine, 6 1,3,5-trinitropentane, 7 1,2-dinitroethane, 1,3-dinitropropane and 1,4-dinitrobutane. 8 Unsuccessful attempts to bridge two metal centres using this chemistry are known 9 where mononuclear complexes have been formed via intramolecular cyclisation.…”