Equiatomic Intermetallic Europium Compounds:  Syntheses, Crystal Chemistry, Chemical Bonding, and Physical Properties

The crystal chemistry of ternary equiatomic europium compounds EuTX (T = transition metal; X = element of the III, IV, or V main group) is reviewed. Besides preparation techniques we have especially focused on the structure−property relationships and peculiarities in chemical bonding. A main interest in these compounds is the valence state of the europium atoms. The magnetic susceptibility and electrical conductivity data, 151 Eu Mössbauer spectroscopic results and L III X-ray absorption experiments are discussed in detail.