Neutron Diffraction Studies of Metal Hydride Complexes

Muhammed Yousufuddin University of Southern California, Department of Chemistry

X-ray diffraction is a highly useful tool for studying complexes in the solid state. However, neutrons can provide even more precise information in cases where X-rays are inadequate. Our research is aimed at uncovering the precise position of chemically interesting hydrogen atoms in metals and metal clusters using single crystal neutron diffraction as our primary analytical tool. In this presentation, we will discuss the advantages of neutron diffraction and present, among others, the structures of OsH₃Cl(PPh₃)₃ (a compound demonstrating a ÒstretchedÓ dihydrogen ligand) and [(C₅Me₄SiMe₃)Y(H)₂]₄(THF) (the first neutron diffraction study of a 4-coordinate hydrogen atom). bonding, INS experiments were performed on xA(CD₃OH)+(1-xA)H₃O at similar mole fractions, on the amorphous solid solutions.

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