Oxyphosphides

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Oxyphosphides are chemical compounds formally containing the group PO, with one

cations to balance a negative charge of 2m+3n. The cations will have charges of +2 or +3. The trications are often rare earth elements or actinides
. They are in the category of oxy-pnictide compounds.

Many compounds are layered, containing two metals with the formula XZPO, with an XP layer alternating with a ZO layer.[1]

Examples

Examples include

  • Ca4P2O greenish gold, has space group I4mmm Z=2 and unit cell parameters a = 4.492, c = 15.087.[2]
  • Uranium–Copper Oxyphosphide UCuPO semimetallic antiferromagnetic tetragonal ZrCuSiAs-type a =3:7958 c=8:2456 V=118.80 Z=2 MW=348.55 density=9.743[1]
  • Thorium–Copper Oxyphosphide ThCuPO semimetallic tetragonal ZrCuSiAs-type a=3.8995 c=8.2939 V=126.12 Z=2 MW=342.56 density=9.02.[1]
  • NpCuOP[3]
  • Sr2ScCoPO3 high
    thermoelectric effect[4]
  • Sr2ScFePO3 superconducting 17K.[4][5]
  • LaNiOP Lanthanum nickel oxyphosphide[6]
  • YOFeP[7]
  • YOMnP[7]
  • YOCdP[7]
  • ROTPn (R = La, Nd, Sm, Gd; T = Mn, Fe, Co, Ni, Cu; Pn = P, As, Sb) [8]
  • YZnPO transparent red R3m Z=6 a = 3.946, c = 30.71[9]
  • LaZnPO transparent red ZrCuSiAs type[9]
  • DyZnPO transparent red R3m Z=6 a=3.8933 c=30.305[9]
  • PrZnPO transparent red dimorphic [9]
  • SmZnPO transparent red R3m Z=6 a = 3.946, c = 30.71[9]
  • NdZnPO transparent a = 3.885 c = 30.32[9]
  • GdZnPO transparent red R3m Z=6 a=3.922, c = 30.56[9]
  • CeZnPO transparent[9]
  • HoZnPO transparent dark red[9]
  • CeRuPO ferromagnetic below 15K. dimorphic[9]
  • CeOsPO antiferromagnetic[9]

related phosphide oxides

  • La2AuP2O C2/m, a=15.373 b=4.274 c=10.092 β=131.02 V=500.3 dark-red-violet[10]
  • Ce2AuP2O C2/m, a = 15.152, b = 4.2463, c = 9.992 pm, β = 130.90° dark-red-violet [10]
  • Pr2AuP2O C2/m, a = 15.036, b = 4.228, c = 9.930 pm, β = 130.88(2)° dark-red-violet [10]
  • Nd2AuP2O C2/m, a = 15.0187, b = 4.2085, c = 9.903 pm, β = 131.12(1)° dark-red-violet [10]


Oxy-pnictides

Related compounds are the

oxyarsenides
.

References

  1. ^
    doi:10.1143/JPSJ.79.074721
    .
  2. doi:10.1016/0022-5088(88)90126-9
    .
  3. PMID 21158457
    .
  4. ^
    doi:10.1088/1742-6596/400/2/022091
    .
  5. S2CID 118525802
    .
  6. PMID 17705374
    .
  7. ^ a b c Moreau, Meghann A. "Flux Synthesis and Characterization of Layered Oxyphosphides in the YOMP System (M=Fe, Mn, Cd)". The 7th Annual NC State University Undergraduate Summer Research Symposium. Retrieved 16 January 2017.
  8. arXiv:0804.1582v1 [cond-mat.supr-con
    ].
  9. ^
    doi:10.1002/zaac.200800066
    .
  10. ^
    PMID 23374070
    .
  11. S2CID 120451483
    .
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