Multifold aromaticity metal clusters

Boldyrev and co-workers have shown that aromaticity /antiaromaticity profiles of these metal clusters have become interesting owing to their variety like multifold aromaticity, multifold antiaromaticity and conflicting aromaticity. They can be a-aromatic, a-antiaromatic, Ti-aro-matic, TT-antiaromatic or having, multiple (a- and n-) (anti) aromaticity and conflicting aromaticity (a-aromatic and Ti-antiaromatic at the same time or vice versa). In case d and f electrons are involved 5- and (j)- (anti) aromaticities and other combinations to give all possible multiple - and conflicting - type varieties are also possible. 

Keywords Adaptive natural density partitioning All transition metal aromaticity Chemical bonding Cluster Multifold aromaticity... 

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