Chemistry Journal of Moldova

STABILIZATION OF UNUSUAL SUBSTRATE COORDINATION MODES IN DINUCLEAR MACROCYCLIC COMPLEXES

Author(s):

Vasile Lozan


Field: Inorganic and coordination chemistry
Type: Review
Issue: 2010 Volume 5, no.1
Pages: 24-35
Keywords:

coordination chemistry, borohydride, hexasulphide, molybdate, amino-thiophenolate ligands.


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Abstract (JPEG)

DOI:
dx.doi.org/10.19261/cjm.2010.05(1).02

Graphical Abstract: 
The steric protection offered by the macrobinucleating hexaazaditiophenolate ligand (L) allows for the preparation of the first stable  dinuclear nickel(II) borohydride  bridged complex, which reacts rapidly with elemental sulphur producing a tetranuclear nickel(II) complex [{(L)Ni2}2(μ-S6)]2+ bearing a helical μ4-hexa- sulfide ligand. The [(L)CoII 2]2+ fragment have been able to trap a monomethyl orthomolybdate in the binding pocket. Unusual coordination modes of substrate in dinuclear macrocyclic compounds was demonstrated.

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