Crystal Structure of the First Monomeric Organotellurium(IV) Oxide: Bis(2-dimethylaminomethylphenyl)tellurium(IV) Oxide

Abstract

The crystal structure of (2-Me ₂ NCH ₂ C ₆ H ₄ ) ₂ TeO was determined by X-ray diffraction on a single crystal. The crystal symmetry is monoclinic, space group P2 ₁ , with unit cell dimensions a = 9.2274(2), b = 10.1749(2), c = 11.5339(3) Å, β = 109.952°, V = 1017.90(4) Å ³ and Z = 2. The structure has been solved and refined down to wR ₂ = 0.0625, using 3675 independent reflections. The compound consists of isolated molecules with two intramolecular Te· · · N interactions of 2.565(4) and 2.755(6) Å stabilizing the tellurium atom.

Keywords:

• Crystal structure
• donor-stabilization
• tellurium

Acknowledgments

Dedicated to Professor Marian Mikołajczyk, CBMiM PAN in Łódź, Poland, on the occasion of his 70th birthday.

Financial support of this work by the University of Munich, the Fonds der Chemischen Industrie and the Deutsche Forschungsgemeinschaft (KL 636/10−1) is gratefully acknowledged.