In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called A Facile Iterative Procedure for the Preparation of Dendrimers Containing Luminescent Cores and Stilbene Dendrons, published in 1999-09-21, which mentions a compound: 172418-32-5, Name is trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium, Molecular C46H46O4P2Pd2, Electric Literature of C46H46O4P2Pd2.
A simple 2-step convergent iterative procedure was developed for the preparation of stilbene dendrons containing an aldehyde at the center which can be coupled in a single step to give dendrimers that contain luminescent chromophores. The stilbene units in the dendrons are linked in a meta arrangement at the branching Ph units allowing them to be treated, to a 1st approximation, as isolated chromophores. All the dendrimers are luminescent with emission observed from the core. The cores prepared were distyrylbenzene, distyrylanthracene, and meso-tetraphenylporphyrin which photoluminesce blue, yellow-green, and red, resp. All the dendrimers, independent of generation or core, could be spin-coated from solution to form good quality thin films, which shows that the processing conditions were disengaged from the electronic properties in this series of materials.
In addition to the literature in the link below, there is a lot of literature about this compound(trans-Di-μ-acetatobis[2-[bis(2-methylphenyl)phosphino]benzyl]dipalladium)Electric Literature of C46H46O4P2Pd2, illustrating the importance and wide applicability of this compound(172418-32-5).
Reference:
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate