Affiliation:
1. Institut für Anorganische und Analytische Chemie , Universität Münster, Corrensstrasse 30 , 48149 Münster , Germany
2. Lebanese German University , Sahel-Alma Campus , Jounieh , Lebanon
Abstract
Abstract
The germanides Sr3Pd4Ge4 and BaPdGe were obtained from high-temperature reactions in sealed niobium ampoules and their structures have been determined from single-crystal X-ray diffraction data: a=444.2(1), b=438.1(1), c=2472.2(7) pm, space group Immm, U3Ni4Si4 type, wR2=0.0471, 576 unique reflections, 25 parameters for Sr3Pd4Ge4 and a=677.09(8), space group P213, LaIrSi type, wR2=0.0322, 409 unique reflections, nine parameters for BaPdGe. Both germanides have pronounced three-dimensional [Pd4Ge4]
δ− and [PdGe]
δ− polyanionic networks with Pd–Ge bonding interactions. This is confirmed by the density functional theory (DFT)-based electronic structure investigations, the trends of charge transfer and crystal orbital overlap population (COOP) analyses.
Reference53 articles.
1. P. S. Salamakha, O. L. Sologub, O. I. Bodak, Ternary Rare-Earth-Germanium Systems, in Handbook on the Physics and Chemistry of Rare Earths, Vol. 27, (Eds.: K. A. Gschneidner Jr., L. Eyring), Elsevier Science B. V., Amsterdam, 1999, chapter 173, pp. 1–223.
2. P. S. Salamakha, Crystal Structures and Crystal Chemistry of Ternary Rare-Earth Germanides, in Handbook on the Physics and Chemistry of Rare Earths, Vol. 27, (Eds.: K. A. Gschneidner Jr., L. Eyring), Elsevier Science B. V., Amsterdam, 1999, chapter 174, pp. 225–338.
3. Yu. D. Seropegin, A. V. Gribanov, O. I. Bodak, J. Alloys Compd.1998, 269, 157.
4. Yu. D. Seropegin, O. L. Borisenko, O. I. Bodak, V. N. Nikiforov, M. V. Kovachikova, Yu. V. Kochetkov, J. Alloys Compd.1995, 216, 259.
5. P. Villars, K. Cenzual, Pearson’s Crystal Data: Crystal Structure Database for Inorganic Compounds (release 2017/18), ASM International®, Materials Park, Ohio (USA) 2017.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献