Cr Cu2 O12 P3 Zr Boireau A, Soubeyroux J, Gravereau P, Olazcuaga R, Le Flem G European Journal of Solid State and Inorganic Chemistry 30 (1993) 337-346 Evidence of copper pairing in Cu2^I^CrZr(PO4/4)3, a crystallographic study _cod_database_code 1008543 _database_code_amcsd 0016434 8.7449 8.7449 21.819 90 90 120 R-3c atom x y z occ Cu1 .039 .156 .0046 .260 Cu2 .650 .074 .295 .0733 Zr1 0 0 .1413 .5 Cr1 0 0 .1413 .5 P1 .2884 0 .25 O1 .1830 -.0113 .1931 O2 .1959 .1697 .0849