[Te2As2]2-: a planar motif with "conflicting" aromaticity.
[K(18-crown-6)]2[Te2As2] is the first four-membered ring Zintl anion of elements from groups XV and XVI. The anion has an unexpected triplet aromatic ground state.
Ugrinov
Angel
A
Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
Sen
Ayusman
A
Reber
Arthur C
AC
Qian
Meichun
M
Khanna
Shiv N
SN