# Search results of SQL query from the Crystallography Open Database # Date and time performed: 2026-10-28T08:59:09+01:00 # Query: # SELECT data.* # FROM # data # WHERE # (status is null or status != 'retracted') and # (sg LIKE 'I 4/m m m (a+b,-a+b,c)' AND duplicateof IS NULL AND (status is NULL OR status != 'errors') AND (method is NULL OR method != 'theoretical')) # ORDER BY file asc file,a,siga,b,sigb,c,sigc,alpha,sigalpha,beta,sigbeta,gamma,siggamma,vol,sigvol,celltemp,sigcelltemp,diffrtemp,sigdiffrtemp,cellpressure,sigcellpressure,diffrpressure,sigdiffrpressure,thermalhist,pressurehist,compoundsource,nel,sg,sgHall,sgNumber,commonname,chemname,mineral,formula,calcformula,cellformula,Z,Zprime,acce_code,authors,title,journal,year,volume,issue,firstpage,lastpage,doi,method,radiation,wavelength,radType,radSymbol,Rall,Robs,Rref,wRall,wRobs,wRref,RFsqd,RI,gofall,gofobs,gofgt,gofref,duplicateof,optimal,status,flags,svnrevision,date,time,onhold "1006047","5.45514","0.00004","5.45514","0.00004","12.6461","0.0001","90","","90","","90","","376.3","","","","","","","","","","","","","3","I 4/m m m (a+b,-a+b,c)","-I 4 2 (1/2*x+1/2*y,-1/2*x+1/2*y,z)","139","","Lanthanum nickel oxide (2/1/4.2)","","- La2 Ni O4.15 -","- La2 Ni O4.1512 -","- La8 Ni4 O16.6048 -","4","","","Rodriguez-Carvajal, J; Fernandez-Diaz, M T; Martinez, J L","Neutron diffraction study on structural and magnetic properties of La~2~NiO~4~","Journal of Physics: Condensed Matter","1991","3","","3215","3234","10.1088/0953-8984/3/19/002","","","","","","0.033","","","","","","","","","","","","","","","has coordinates","277833","2022-09-14","15:22:10","" "1006048","5.4897","0.0003","5.4897","0.0003","12.5708","0.0007","90","","90","","90","","378.8","","","","","","","","","","","","","3","I 4/m m m (a+b,-a+b,c)","-I 4 2 (1/2*x+1/2*y,-1/2*x+1/2*y,z)","139","","Lanthanum nickel oxide (2/1/4.1)","","- La2 Ni O4.1 -","- La2 Ni O4.1 -","- La8 Ni4 O16.4 -","4","","","Rodriguez-Carvajal, J; Fernandez-Diaz, M T; Martinez, J L","Neutron diffraction study on structural and magnetic properties of La~2~NiO~4~","Journal of Physics: Condensed Matter","1991","3","","3215","3234","10.1088/0953-8984/3/19/002","","","","","","0.043","","","","","","","","","","","","","","","has coordinates","277833","2022-09-14","15:22:10","" "1006177","5.3491","0.0001","5.3491","0.0001","13.1846","0.0003","90","","90","","90","","377.2","","","","","","","","","","","","","4","I 4/m m m (a+b,-a+b,c)","-I 4 2 (1/2*x+1/2*y,-1/2*x+1/2*y,z)","139","","Lanthanum calcium copper oxide (1.88/0.12/1/4)","","- Ca0.12 Cu La1.88 O4 -","- Ca0.12 Cu La1.88 O3.98 -","- Ca0.48 Cu4 La7.52 O15.92 -","4","","","Rial, C; Moran, E; Alario-Franco, M A; Amador, U; Martinez, J L; Rodriguez-Carvajal, J; Andersen, N H","Effects of extra oxygen on the structure and superconductivity of La2-x Cax Cu O4+y prepared by chemical oxidation","Physica C (Amsterdam) (152,1988-)","1998","297","","277","293","10.1016/S0921-4534(98)00005-7","","","","","","0.024","","","","","","","","","","","","","","","has coordinates","277831","2022-09-14","14:31:32","" "1006187","5.34975","0.00009","5.34975","0.00009","13.1874","0.0002","90","","90","","90","","377.4","","","","","","","","","","","","","4","I 4/m m m (a+b,-a+b,c)","-I 4 2 (1/2*x+1/2*y,-1/2*x+1/2*y,z)","139","","Lanthanum calcium copper oxide (1.88/0.12/1/4.058)","","- Ca0.12 Cu La1.88 O4.058 -","- Ca0.12 Cu La1.88 O4.0576 -","- Ca0.48 Cu4 La7.52 O16.2304 -","4","","","Rial, C; Moran, E; Alario-Franco, M A; Amador, U; Martinez, J L; Rodriguez-Carvajal, J; Andersen, N H","Effects of extra oxygen on the structure and superconductivity of La2-x Cax Cu O4+y prepared by chemical oxidation","Physica C (Amsterdam) (152,1988-)","1998","297","","277","293","10.1016/S0921-4534(98)00005-7","","","","","","0.034","","","","","","","","","","","","","","","has coordinates","277831","2022-09-14","14:31:32","" "2108841","5.3282","0.0001","5.3282","","10.3363","0.0002","90","","90","","90","","293.445","0.008","293","","293","","","","","","","","","4","I 4/m m m (a+b,-a+b,c)","-I 4 2 (1/2*x+1/2*y,-1/2*x+1/2*y,z)","139","","","","- H8 Mg O8 Te -","- Mg O8 Te -","- Mg2 O16 Te2 -","2","","RA5097","Stöger, Berthold; Krüger, Hannes; Weil, Matthias","Mg(H~2~O)~2~[TeO~2~(OH)~4~]: a polytypic structure with a two-mode disordered stacking arrangement","Acta Crystallographica Section B","2021","77","4","","","10.1107/S2052520621006223","","x-ray","0.71073","MoKα","","0.0121","0.0121","","","0.0313","0.0313","","","","1.33","1.33","1.33","","","","has coordinates,has Fobs","267781","2021-07-28","05:20:45","" "2310803","5.704","","5.704","","6.699","","90","","90","","90","","217.956","","","","","","","","","","","","","2","I 4/m m m (a+b,-a+b,c)","-I 4 2 (1/2*x+1/2*y,-1/2*x+1/2*y,z)","139","","","","- K O2 -","- K O2 -","- K4 O8 -","4","","","Abrahams, S.C.; Kalnajs, J.","The crystal structure of alpha-potassium superoxide","Acta Crystallographica (1,1948-23,1967)","1955","8","","503","506","","","","","","","","","","","","","","","","","","","","","","has coordinates","301809","2025-08-19","19:04:01",""