The content of the FORMED database is limited to crystal structures in the Cambridge Structural Database. We therefore proceed by expanding the class by computing a series of analogs of CUYXAV and DINGAI01. Several of such analogs have already been explored synthetically. Many of these show similar Hund's rule violations as listed in Figure . We therefore conclude that CUYXAV and DINGAI01 are not special cases, but are examples of a broader class of bridged compounds with [14]annulene perimeters that can display excited-state Hund's rule violations. Like CUYXAV and DINGAI01, isopyrene also has a [14]annulenic perimeter, albeit with a conjugated double-bond bridge. We therefore explore isopyrene and anthracene analogs with saturated bridges, of which some have been reported synthetically. we have previously reported as essential for singlet-triplet inversion is thus also present in these molecules. This has been described in terms of the [14]annulenic perimeter being stabilized by aromaticity due to its having 4n+2 π-electrons. The structural relation between isopyrene and the [14]annulenes is clear: the simplest bridged [14]annulene-dihydroisopyrene-consists of the same π-conjugated perimeter as isopyrene Figure : Excited-state gaps of azupyrene, pyrene and their bridged [14]annulene perimeter analogs.