distorted eightfold coordination geometry. distorted eightfold coordination geometry. distorted eightfold coordination geometry. distorted eightfold coordination geometry. distorted eightfold coordination geometry. distorted eightfold coordination geometry. " /> " /> " /> " /> " /> " /> coordination environment whereas each Y atom has coordination environment whereas each Y atom has coordination environment whereas each Y atom has coordination environment whereas each Y atom has coordination environment whereas each Y atom has coordination environment whereas each Y atom has time-of-flight neutron powder diffraction data. Each Ru atom has a nearly regular octahedral time-of-flight neutron powder diffraction data. Each Ru atom has a nearly regular octahedral time-of-flight neutron powder diffraction data. Each Ru atom has a nearly regular octahedral time-of-flight neutron powder diffraction data. Each Ru atom has a nearly regular octahedral time-of-flight neutron powder diffraction data. Each Ru atom has a nearly regular octahedral time-of-flight neutron powder diffraction data. Each Ru atom has a nearly regular octahedral