STRUCTURAL IDENTIFICATION OF TRANS-[Mo^IIIBr₂py₄]Br₃ (py=PYRIDINE,C₅H₅N)

J.V.Brenèiè¹, A.N.Chernega² and R.Rotar¹

¹Fac.of Chem. and Chem.Technology, University of Ljubljana, P.O.Box 537, 1001 Ljubljana, Slovenia, jurij.brencic@UNI-LJ.SI ²Chem. Cryst. Laboratory, 9 Park Road, Oxford, OX1 3PD, United Kingdom

Abstract

Trans-[Mo^IIIBr₂py₄]Br₃ crystallizes in the orthorhombic, Pcnm space group, with a=7.670(2), b=22.063(3) and c=15.237(1)A. Unit cell contains 4 formula units. Mo-Br and Mo-N(pyridine) bonds are 2.552(1) and 2.210(7), 2.222(8)A. Trans located pyridine rings are staggered. Tribromide ion is symmetrical, but not linear. The compound is isostructural with trans-[Mo^IIICl₂py₄]Br₃