# Search results of SQL query from the Crystallography Open Database # Date and time performed: 2026-03-11T09:51:46+01:00 # Query: # SELECT data.* # FROM # data # WHERE # (status is null or status != 'retracted') and # (sg LIKE 'C m c a (c,a,b)' 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 "1536822","5.624","","5.714","","12.198","","90","","90","","90","","391.989","","","","","","","","","","","","","3","C m c a (c,a,b)","-C 2ac 2 (z,x,y)","64","","La2 (Cu O4)","","- Cu La2 O4 -","- Cu La2 O4 -","- Cu4 La8 O16 -","4","","","Falter, C.; Klenner, M.; Chen, Q.","Role of bonding, reduced screening, and structure in the hightemperature superconductors","Physical Review, Serie 3. B - Condensed Matter (18,1978-)","1993","48","","16690","16706","","","","","","","","","","","","","","","","","","","","","","has coordinates","176429","2020-10-21","18:00:00",""