A `tetrameric' 3,4-di-p-tolyl-1,2,5-oxadiborole derivative

In the title compound, 1,1,6a,7,9a,10-hexa­chloro-2,3,5,6,8,9,11,12-octa-p-tolyl-1,6a,9a,12a-tetraborata-3a,4a,7,10-tetrabora-4a1,6b,9b,12b-tetraoxonia-4-oxatetra­cyclo­penta­[1,2-a:2,1,5-de:1,2-g:1,2-i]­naphthalene di­chloro­methane pentasolvate, C64H56B8Cl6O5·5CH2Cl2, two condensed oxadiborole rings are attached to two further oxadiborole rings in a type of donor–acceptor bonding, thus forming a ten-membered alternating (B—O)5 naphthalene-like arrangement as the central building block.