Dokl. Akad. Nauk SSSR, 1985 Volume 283, Number 5,Pages 1188–1193(Mi dan47146)
CRYSTALLOGRAPHY
The crystal and molecular structure of $2{,}12$-dibromo-$10{,}20$-di($n$-chlor)phenyldibenzo $[b,j]$$[1,5,9,13]$ tetraaza-$9{,}19$-cyclohexadecadiene-$1{,}16$-dione