Central atoms: B:U; W:Se, Formula: O17 Se3 U2, C N, 2(O)CCDC: 866553, Central atoms: B:U; W:Se, Formula: O17 Se3 U2, C N, 2(O)CCDC: 245153, Central atoms: B:U; W:S, Formula: H2 O17 S3 U2, C4 H13 N2, 2H2 O