Ba2 Cu3 O6.86 Y Francois M, Junod A, Yvon K, Hewat A, Capponi J, Strobel P, Marezio M, Fischer P Solid State Communications 66 (1988) 1117-1125 A study of the Cu-O chains in the high Tc superconductor Y Ba2 Cu3 O7 by high resolution neutron powder diffraction _cod_database_code 1008416 _database_code_amcsd 0016325 CELL PARAMETERS: 3.8114 3.8792 11.6373 90.000 90.000 90.000 SPACE GROUP: Pmmm X-RAY WAVELENGTH: 1.541838 Cell Volume: 172.060 Density (g/cm3): 6.407 MAX. ABS. INTENSITY / VOLUME**2: 2.831815640 RIR: 0.144 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 7.60 100.00 11.6373 0 0 1 2 15.23 37.06 5.8186 0 0 2 2 22.93 12.73 3.8792 0 1 0 2 22.93 4.43 3.8791 0 0 3 2 23.34 4.04 3.8114 1 0 0 2 24.18 12.79 3.6801 0 1 1 4 24.58 3.70 3.6221 1 0 1 4 27.99 3.09 3.1883 1 0 2 4 30.73 1.28 2.9093 0 0 4 2 32.65 26.52 2.7430 0 1 3 4 32.95 24.67 2.7187 1 1 0 4 32.95 27.67 2.7187 1 0 3 4 33.86 1.48 2.6474 1 1 1 8 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.