Ba2Cu2TaPb2ClO8 tP18 123

• Ba-Cl-Cu-O-Pb-Ta
• Cl-Cu-O-Pb-Sr-Ta
• Ba-Cl-Cu-Nb-O-Pb
• Ba-Cl-Cu-O-Pb-Sb
• Br-Cu-O-Pb-Sr-Ta
• structural properties
• multinary
• chalcogen
• halogen
• alkaline
• transitional
• tetragonal