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TH6BR15H7-STABILIZATION OF A TH6BR12 CLUSTER BY 7 HYDROGEN-ATOMS

SIMON, A; BOTTCHER, F; COCKCROFT, JK; (1991) TH6BR15H7-STABILIZATION OF A TH6BR12 CLUSTER BY 7 HYDROGEN-ATOMS. ANGEW CHEM INT EDIT , 30 (1) 101 - 102.

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Abstract

Vertices, edges, and faces-in other words, the whole periphery of the Th6 octahedron in the title compound-are covered with Br and H atoms. The structure is novel in that the H atoms are not bonded interstitially but rather from ''outside'' to the cluster core, as shown by neutron diffraction of the perdeuterated compound (see the picture on the right; o = Th, O = Br, o = D). If the metal-metal bonds in the cluster are described qualitatively by eight closed three-center two-electron bonds directed toward the middle of the faces of the octahedron, it is clearly seen that seven of these bonds are stabilized by the additional electrons of the H atoms at the centers of the faces.

Type: Article
Title: TH6BR15H7-STABILIZATION OF A TH6BR12 CLUSTER BY 7 HYDROGEN-ATOMS
Keywords: ZIRCONIUM
UCL classification: UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Chemistry
URI: http://discovery.ucl.ac.uk/id/eprint/169941
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