# Search results of SQL query from the Crystallography Open Database # Date and time performed: 2025-12-08T06:31:54+01:00 # Query: # SELECT data.* # FROM # data # WHERE # (status is null or status != 'retracted') and # (sg LIKE 'P 42 m 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 "1005039","8.657","0.0012","8.657","0.0012","7.334","0.002","90","","90","","90","","549.6","","","","","","","","","","","","","3","P 42 m c","P 4c -2","105","","Hexastrontium trinitridodicuprate(I) dinitridocuprate(I)","","- Cu3 N5 Sr6 -","- Cu3 N5 Sr6 -","- Cu6 N10 Sr12 -","2","0.25","","DiSalvo, F J; Trail, S S; Yamane, H; Brese, N E","The crystal structure of Sr6 Cu3 N5 with isolated, bent (Cu(I)2 N3)(7-) anions and the single crystal structural determination of Sr Cu N","Journal of Alloys Compd.","1997","255","","122","129","10.1016/S0925-8388(96)02811-3","","","","","","0.038","","","","","","","","","","","","","","","has coordinates","130149","2020-10-21","18:00:00","" "2101579","7.618","0.005","7.618","0.005","8.5","0.005","90","","90","","90","","493.3","0.5","","","","","","","","","","","","3","P 42 m c","P 4c -2","","","","","- As2 Ba Ge2 -","- As8 Ba4 Ge8 -","- As8 Ba4 Ge8 -","","","AN0527","Abrahams, S. C.","New ferroelectric inorganic materials predicted in point group 4mm","Acta Crystallographica Section B","1996","52","5","790","805","10.1107/S0108768196004594","","","0.71069","MoKα","","","","","","","","","","","","","","","","","has coordinates","176435","2020-10-21","18:00:00","" "4001940","7.5376","0.0007","7.5376","0.0007","7.6002","0.0012","90","","90","","90","","431.81","0.09","293","2","293","2","","","","","","","","4","P 42 m c","P 4c -2","105","","","","- Ca Mn O6 Ti2 -","- Ca Mn O6 Ti2 -","- Ca4 Mn4 O24 Ti8 -","4","0.5","","Aimi, Akihisa; Mori, Daisuke; Hiraki, Ko-ichi; Takahashi, Toshihiro; Shan, Yue Jin; Shirako, Yuichi; Zhou, Jianshi; Inaguma, Yoshiyuki","High-Pressure Synthesis ofA-Site Ordered Double Perovskite CaMnTi2O6and Ferroelectricity Driven by Coupling ofA-Site Ordering and the Second-Order Jahn‒Teller Effect","Chemistry of Materials","2014","26","8","2601","","10.1021/cm500016z","","","0.71073","MoKα","","0.0215","0.0197","","","","0.0703","","","","","","1.279","","","","has coordinates","178377","2020-10-21","18:00:00","" "7222662","7.618","","7.618","","8.5","","90","","90","","90","","493.288","","","","","","","","","","","","","3","P 42 m c","P 4c -2","105","","","","- Ba Ge2 P2 -","- Ba Ge2 P2 -","- Ba4 Ge8 P8 -","4","0.5","","Eisenmann, B.; Schaefer, H.","Zintlphasen mit binaeren Anionen: Zur Kenntnis von Ba Ge2 P2 und Ba Ge2 As2","Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie, Organische Chemie (33,1978-41,1986)","1981","36","","415","419","","","","","","","","","","","","","","","","","","","","","","has coordinates","211196","2020-10-21","18:00:00","" "7222663","7.786","","7.786","","8.664","","90","","90","","90","","525.227","","","","","","","","","","","","","3","P 42 m c","P 4c -2","105","","Ba Ge2 As2","","- As2 Ba Ge2 -","- As2 Ba Ge2 -","- As8 Ba4 Ge8 -","4","0.5","","Eisenmann, B.; Schaefer, H.","Zintlphasen mit binaeren Anionen: Zur Kenntnis von Ba Ge2 P2 und Ba Ge2 As2","Zeitschrift fuer Naturforschung, Teil B. Anorganische Chemie, Organische Chemie (33,1978-41,1986)","1981","36","","415","419","","","","","","","","","","","","","","","","","","","","","","has coordinates","176429","2020-10-21","18:00:00","" "9007818","7.471","","7.471","","9.98","","90","","90","","90","","557.042","","","","","","","","","","","","","3","P 42 m c","P 4c -2","105","","","","- Cl2 Mg O10 -","- Cl2 H12 Mg O10 -","- Cl4 H24 Mg2 O20 -","2","0.25","","Okuda, M.; Ishihara, M.; Yamanaka, M.; Ohba, S.; Saito, Y.","Structures of lead chlorite, magnesium chlorite hexahydrate and silver chlorite Sample: Compound (II)","Acta Crystallographica, Section C","1990","46","","1755","1759","10.1107/S010827019000066X","","","","","","","","","","","","","","","","","","","","","has coordinates","291455","2024-05-02","11:21:04",""