Skip to main content
SpringerLink
Log in

Rhodium-rich germanides RERh4Ge2 (RE = Y, Gd–Lu): structure and bonding

  • Original Paper
  • Published:
Monatshefte für Chemie - Chemical Monthly Aims and scope Submit manuscript

Abstract

The rhodium-rich germanides RERh4Ge2 (RE = Y, Gd–Lu) were synthesized by arc-melting of the elements and subsequent annealing in a muffle furnace. The samples were characterized through Guinier powder patterns. The structures of YRh4Ge2 and TmRh4Ge2 were refined from X-ray single crystal diffractometer data: new type, Pnma, Z = 4, a = 1136.4(2) pm, b = 418.29(5) pm, c = 910.12(9) pm, wR2 = 0.0268, 707 F 2 values for YRh4Ge2 and a = 1131.5(1) pm, b = 416.54(5) pm, c = 908.06(9) pm, wR2 = 0.0276, 719 F 2 values for TmRh4Ge2 with 44 variables per refinement. The two crystallographically independent germanium sites both show distorted trigonal prismatic coordination by four rhodium and two rare earth atoms. The basic structural motifs are double prisms, similar to the structures of ZrFe4Si2 and CeIn4Au2. The shortest interatomic distances are observed for the Rh–Ge contacts within the three-dimensional [Rh4Ge2] polyanionic network which are further stabilized through weak Rh–Rh interactions. The calculations of the electronic structure within DFT done exemplarily for the yttrium compound show an itinerant like weak metal with a low density of states at the Fermi level and intricate chemical bonding due to the presence of two germanium sites interacting with the four rhodium sites.

Graphical abstract

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. Salamakha PS, Sologub OL, Bodak OI (1999) Ternary rare-earth-germanium systems. In: Gschneidner KA Jr, Eyring L (ed) Handbook on the physics and chemistry of rare earths, vol 27. Elsevier Science, Amsterdam, chapter 173

  2. Salamakha PS (1999) Crystal structures and crystal chemistry of ternary rare-earth germanides. In: Gschneidner KA Jr, Eyring L (ed) Handbook on the physics and chemistry of rare earths, vol 27. Elsevier Science, Amsterdam, chapter 174

  3. Pöttgen R, Hönle W, von Schnering HG (2005) Phosphides: solid state chemistry. In: King RB, Encyclopedia of inorganic chemistry, 2nd edn. vol VII. Wiley, New York, p 4255

  4. Pfannenschmidt U, Rodewald UC, Pöttgen R (2011) Monatsh Chem 142:219

    Article  CAS  Google Scholar 

  5. Pfannenschmidt U, Rodewald UC, Pöttgen R (2011) Z Kristallogr 226:229

    Article  CAS  Google Scholar 

  6. Voßwinkel D, Niehaus O, Rodewald UC, Pöttgen R (2012) Z Naturforsch 67b:1241

    Google Scholar 

  7. Voßwinkel D, Niehaus O, Pöttgen R (2013) Z Anorg Allg Chem 639:2623

    Article  Google Scholar 

  8. Palatinus L, Chapuis G (2007) J Appl Crystallogr 40:786

    Article  CAS  Google Scholar 

  9. Petříček V, Dušek M, Palatinus L (2014) Z Kristallogr 229:345

    Google Scholar 

  10. Villars P, Cenzual K (2014) Pearson’s crystal data—crystal structure database for inorganic compounds, release 2014/15. ASM International, Materials Park, Ohio

    Google Scholar 

  11. Chikhrii SI, Orishchin SV, Kuz’ma YuB (1986) Dopov Akad Nauk Ukr RSR Ser A 81

  12. Pivan JY, Guérin R, El Ghadraoui EH, Rafiq M (1989) J Less Common Met 153:285

    Article  CAS  Google Scholar 

  13. Jeitschko W, Terbüchte LJ, Reinbold EJ, Pollmeier PG, Vomhof T (1990) J Less Common Met 161:125

    Article  CAS  Google Scholar 

  14. Schobinger-Papamantellos P, Rodríguez-Carvajal J, André G, Duong NP, Buschow KHJ, Tolédano P (2001) J Magn Magn Mater 236:14

    Article  CAS  Google Scholar 

  15. Le Beuze A, Zerrouki MC, Lissillour R, Guérin R, Jeitschko W (1993) J Alloys Compd 191:53

    Article  Google Scholar 

  16. Salvador JR, Hoang K, Mahanti SD, Kanatzidis MG (2007) Inorg Chem 46:6933

    Article  CAS  Google Scholar 

  17. Méot-Meyer M, Venturini G, Malaman B, Roques B (1985) Mater Res Bull 20:913

    Article  Google Scholar 

  18. Hoffmann R-D, Pöttgen R, Rosenhahn C, Mosel BD, Künnen B, Kotzyba G (1999) J Solid State Chem 145:283

    Article  CAS  Google Scholar 

  19. Hoffmann R-D, Pöttgen R (1999) Z Anorg Allg Chem 625:994

    Article  CAS  Google Scholar 

  20. Li B, Corbett JD (2007) Inorg Chem 46:6022

    Article  CAS  Google Scholar 

  21. Emsley J (1999) The elements. Oxford University Press, Oxford

    Google Scholar 

  22. Gaudin E, Chevalier B, Heying B, Rodewald UC, Pöttgen R (2005) Chem Mater 17:2693

    Article  CAS  Google Scholar 

  23. Donohue J (1974) The structures of the elements. Wiley, New York

    Google Scholar 

  24. Pöttgen R, Gulden T, Simon A (1999) GIT Labor Fachz 43:133

    Google Scholar 

  25. Yvon K, Jeitschko W, Parthé E (1977) J Appl Crystallogr 10:73

    Article  Google Scholar 

  26. Kohn W, Sham LJ (1965) Phys Rev 140:A1133

    Article  Google Scholar 

  27. Hohenberg P, Kohn W (1965) Phys Rev 136:B864

    Article  Google Scholar 

  28. Williams AR, Kübler J, Gelatt CD Jr (1979) Phys Rev B 19:6094

    Article  CAS  Google Scholar 

  29. Eyert V (2000) Int J Quantum Chem 77:1007

    Article  CAS  Google Scholar 

  30. Eyert V (2013) Lect Notes Phys 849

  31. Perdew JP, Burke K, Ernzerhof M (1996) Phys Rev Lett 77:3865

    Article  CAS  Google Scholar 

  32. Hoffmann R (1987) Angew Chem Int Ed 26:846

    Article  Google Scholar 

  33. Matar SF (2013) Prog Solid State Chem 41:55

    Article  CAS  Google Scholar 

Download references

Acknowledgments

This work was financially supported by the Deutsche Forschungsgemeinschaft. SFM thanks the CNRS and the Conseil Régional d’Aquitaine for support. The calculations were carried out on the main frame computers of MCIA-University of Bordeaux.

Author information

Authors and Affiliations

  1. Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, 48149, Münster, Germany

    Daniel Voßwinkel & Rainer Pöttgen

  2. CNRS, Université de Bordeaux, ICMCB, 87 Avenue du Docteur Albert Schweitzer, 33600, Pessac, France

    Samir F. Matar

Authors
  1. Daniel Voßwinkel
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Samir F. Matar
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Rainer Pöttgen
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Rainer Pöttgen.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Voßwinkel, D., Matar, S.F. & Pöttgen, R. Rhodium-rich germanides RERh4Ge2 (RE = Y, Gd–Lu): structure and bonding. Monatsh Chem 146, 1375–1383 (2015). https://doi.org/10.1007/s00706-015-1525-5

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00706-015-1525-5

Keywords

Search

Navigation