Host–Guest Compounds in the Family of Tellurium–Nickel OxohalogenidesWe thank Mr. Marian Mikus at Sandvik Coromant AB for the microsond analyses and Dr. Javier Garcia-Garcia at Stockholm University for the TEM study. This work has been carried out in part through financial support from the Swedish Research Council and the European Union (HPHN-CT-2002-00193).