Four atoms of this element each double bond to one oxygen and are bridged by an additional six oxygen atoms in its most important oxide.
This element is surrounded by cyclohexyl groups in a ligand which interacts with ruthenium and gets replaced by a chelating isopropoxy ligand during the action of a Hoveyda catalyst in olefin metathesis. Four atoms of this element each double bond to one oxygen and are bridged by an additional six oxygen atoms in its most important oxide. A carbon atom is bound to this element with a positive charge in a (*) betaine that is formed by the reaction of a ylide with this element attached to three phenyl groups. This element appears in a salt used in the Wittig reaction. This element, which exists in red and white allotropes, exists as a 3- anion bound to four oxygens. For 10 points, name this glowing nonmetal found below nitrogen.
This element is surrounded by cyclohexyl groups in a ligand which interacts with ruthenium and gets replaced by a chelating isopropoxy ligand during the action of a Hoveyda catalyst in olefin metathesis.
phosphorus [or P]