Scottyite Yamada T, Hiroi Z, Takano M Journal of Solid State Chemistry 156 (2001) 101-109 Spin-1/2 quantum antiferromagnetic chains with tunable superexchange interactions found in BaCu2(Si1-xGex)2O7 Locality: synthetic _database_code_amcsd 0018761 6.86058 13.17507 6.89589 90 90 90 Pnma atom x y z Biso Ba -.0115 .25 .9558 1.77 Cu .2214 .0052 .7927 1.80 Si .0045 .1337 .4732 .66 O1 .0775 .25 .4781 -.01 O2 -.1617 .1311 .6238 1.97 O3 -.0698 .1155 .2619 2.33 O4 .1809 .0649 .5299 .58