The presence of this molecule _____. The skeletal formula of 2, 3-bisphosphoglycerate, or 2, 3-B P G. The skeletal formula of 2, 3-bisphosphoglycerate, or 2, 3-B P G. 2, 3-bisphosphoglycerate has a central carbon atom, which is linked to a hydrogen atom, two carbon atoms and an oxygen atom. The oxygen atom is bonded to a phosphorus atom, which is bonded to three more oxygen atoms, with delocalized double bonds between three oxygen atoms and the phosphorus atom. There is a net negative charge of minus two between the oxygens bonded to the phosphorus atom. One of the carbon atoms bonded to the central carbon has two oxygen atoms bonded to it via a delocalized double bond. There is a net negative charge of minus one between the oxygen atoms. The other carbon bonded to the central carbon is linked to an oxygen atom. The oxygen atom is linked to a phosphorus atom, which is in turn linked to three more oxygen atoms in the same arrangement as the other phosphorus atom, with a net charge of minus two between the oxygen atoms bonded to the phosphorus atom.