Buy article online - an online subscription or single-article purchase is required to access this article.
crystal data
Powder X-ray diffraction patterns were obtained for the series of synthesized compounds RCo2Ge2 with R = La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and Y. The compounds have been indexed on the basis of a tetragonal unit cell with two formula units per cell. Except for YbCo2Ge2 the series shows the expected lanthanide contraction.