"c2h2p": c2h2p.xyz "c2h2": c2h2.xyz "h2op": h2op.xyz "h2o": h2o.xyz "h2p": h2p.xyz "h2sp": h2sp.xyz "h2s": h2s.xyz "h2": h2.xyz "hclp": hclp.xyz "hcl": hcl.xyz "nh3p": nh3p.xyz "nh3": nh3.xyz "p2p": p2p.xyz "p2": p2.xyz "p4p": p4p.xyz "p4": p4.xyz "p6p": p6p.xyz "p6": p6.xyz "p8p": p8p.xyz "p8": p8.xyz "ph3p": ph3p.xyz "ph3": ph3.xyz "sih4p": sih4p.xyz "sih4": sih4.xyz