data_global _amcsd_formula_title 'Cu2 Hg0.57 O9.6 Sr4 V0.43' loop_ _publ_author_name 'Maignan A' 'Pelloquin D' 'Malo S' 'Michel C' 'Hervieu M' 'Raveau B' _journal_name_full 'Physica C' _journal_volume 249 _journal_year 1995 _journal_page_first 220 _journal_page_last 233 _publ_section_title ; Stabilisation of three new oxycarbonates by V and Cr substitutions. The superconductors (Tl,M)1Sr4Cu2(CO3)O7 (M= Cr, V) and (Hg,V)1Sr4Cu2(CO3)O6+z _cod_database_code 1001692 ; _database_code_amcsd 0015072 _chemical_formula_sum '(Hg.57 V.43) Sr4 Cu2 C O9.6' _cell_length_a 3.8505 _cell_length_b 3.8505 _cell_length_c 16.23999 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 240.780 _exptl_crystal_density_diffrn 5.375 _symmetry_space_group_name_H-M 'P 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,z' 'y,x,-z' 'y,-x,-z' '-y,x,z' 'x,-y,z' '-x,y,-z' 'x,y,-z' '-x,-y,z' 'y,x,z' '-y,-x,-z' '-y,x,-z' 'y,-x,z' '-x,y,z' 'x,-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Hg1 0.00000 0.00000 0.00000 0.57000 V1 0.00000 0.00000 0.00000 0.43000 Sr1 0.50000 0.50000 0.15680 1.00000 Sr2 0.50000 0.50000 0.37540 1.00000 Cu1 0.00000 0.00000 0.26560 1.00000 C1 0.00000 0.00000 0.50000 1.00000 O1 0.50000 0.50000 0.00000 0.60000 O2 0.00000 0.00000 0.11690 1.00000 O3 0.00000 0.00000 0.41660 1.00000 O4 0.67500 0.00000 0.50000 0.25000 O5 0.50000 0.00000 0.27980 1.00000