Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: First examples of stable transition metal complexes of an all-metal
  antiaromatic molecule (Al$_4$Li$_4$)   We propose new methodologies for stabilizing all-metal antiaromatic clusters
like: Al$_{4}$Li$_{4}$. We demonstrate that these all-metal species can be
stabilized by complexation with 3d-transition metals very similar to its
organic counterpart, C$_4$H$_4$. Complexation to transition metal ions reduce
the frontier orbital energies and introduces aromaticity. We consider a series
of such complexes [$\eta$$^4$(Al$_4$Li$_4$)-Fe(CO)$_3$,
$\eta$$^2$$\sigma$$^2$(Al$_4$Li$_4$)-Ni and (Al$_{4}$Li$_{4}$)$_{2}$Ni] and
make a comparison between the all-metal species and the organometallic
compounds to prove conclusively our theory. Fragmentation energy analysis as
well as NICS support similar mechanism of complexation induced stability in
these all-metal molecules.

34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex