Prof. emrit. Dr. Friedrich Liebau

Ludewig-Meyn-Str. 10, R 450 24118 Kiel Tel.: +49 431 880 2888 Fax: +49 431 880 4457 E-Mail: liebau@min.uni-kiel.de

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Research

Inorganic Crystal Chemistry, in particular

• Silicates, Germanates, Phosphates;
• Chalcogen Compounds of Cations with one Lone Electron Pair;
• Microporous Materials (including zeolites);
• Bond Valence Theory.

Publications

• F. Liebau, X. Wang, W. Liebau, Stoichiometric valence and structural valence: Two different sides of the same coin “bonding power”. Chem. Europ. J. 15, 2728-2737, 2009.
• X. Wang, F. Liebau, On the optimization of bond-valence parameters: artifacts conceal chemical effects. Acta Crystallogr. B65, 96-98, 2009.
• H.-J. Klein, F. Liebau, Computerized crystal-chemical classification of silicates and related mate-rials with CRYSTANA and formula notation for classified structures . J. Solid State Chem. 181, 2412-2417, 2008.
• F. Liebau, X. Wang, A bond-valence investigation of two series of isostructural lanthanide com-pounds. Acta Crystallogr. B64, 299-304, 2008.
• X. Wang, F. Liebau, Influence of polyhedron distortions on calculated bond-valence sums for cations with one lone electron pair. Acta Crystallogr. B63, 216-228, 2007.
• H. Kueppers, F. Liebau, A.L. Spek, The determination of pore volumes, pore shapes and diffusion paths in microporous crystals. J. Appl. Crystallogr. 39, 338-346, 2006.
• The Zintl-Klemm concept applied to cations in oxides. II. The structures of silicates. D. Santamaria-Pérez, A. Vegas, F. Liebau, Structure and Bonding, 118, 121-177, 2005.
• Stoichiometric valence versus structural valence: Conclusions drawn from a study of the influence of polyhedron distortion on bond valence sums. F. Liebau, X. Wang, Z. Kristallogr. 220, 589-591, 2005.
• The contribution to bond valences by lone electron pairs. X. Wang, F. Liebau, Mater. Res. Soc. Symp. Proc. Vol. 848, FF7.4.1 - FF7.4.6, 2005.
• Microporous materials of the nth order: new classes of poroates. F. Liebau, Micropor. Mesopor. Mater. 70, 103-108, 2004.
• Wickenburgite, a double-layer silicate Pb3Al[6] [Ca[6]Al[4]Si[4]10O27(H2O)3]×H2O: Crystal chemistry and thermal behaviour. K.-F. Hesse, F. Liebau , H.-H. Eulert, Z. Kristallogr. 218, 542-552, 2003.
• Ordered microporous and mesoporous materials with inorganic hosts: definitions of terms, formula notation, and systematic classification. F. Liebau, Micropor. Mesopor. Mater. 58, 15-72, 2003. Erratum. Micropor. Mesopor. Mater. 66, 363, 2003.
• Anion packing-density: A universal quantity for both dense and porous crystalline inorganic materials. F. Liebau, H. Küppers, Acta Crystallogr. B58, 457-462, 2002.
• Nomenclature of structural and compositional characteristics of ordered microporous and mesoporous materials with inorganic hosts (IUPAC Recommendations 2001). L.B. McCusker, F. Liebau, G. Engelhardt, Pure Appl. Chem. 73, 381-394, 2001; Micropor. Mesopor. Mater. 58, 3-13, 2003.
• Determination of conduction paths of semiconducting electrons by bond-valence calculations. F. Liebau, Z. Kristallogr. 215, 381-383, 2000.
• An investigation of microporous cetineite-type phases A6[B12O18][CX3]2[Dx(H2O,OH,O)6-y]. II. Crystal structures of cetineites, A6[Sb12O18][SbX3]2[DxY6-y], and their changes with chemical composition. X. Wang, F. Liebau, Z. Kristallogr. 214, 820-834,1999.
• Silicates and perovskites: two themes with variations. F.Liebau, Angew. Chem. 111, 1845-1850, 1999; Angew. Chem. Int. Ed. 38, 1733-1737, 1999.
• Hydrothermal synthesis and crystal structure of [(CH3NH3)1.03K2.97] Sb12S20· 1.34H20. X. Wang, A.J. Jacobson, F. Liebau, J. Solid State Chem. 140, 387-395, 1998.
• Recommended nomenclature for zeolite minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names. D.S. Coombs, A. Alberti, T. Armbruster, G. Artioli, C. Colella, E. Galli, J.D. Grice, F. Liebau, J.A. Mandarino, H. Minato, E.H. Nickel, E. Passaglia, D.R. Peacor, S. Quartieri, R. Rinaldi, M. Ross, R.A. Sheppard, E. Tillmanns, G. Vezzalini, Canad. Mineral. 35, 1571-1606, 1997; Miner. Mag. 62, 533-571, 1998; Eur. J. Mineral, 10, 1037-1081, 1998; Amer. Mineral. 83, 935, 1998.
• An investigation of microporous cetineite-type phases A6[B12O18][CX3]2[Dx(H2O,OH,O)6-y]. I. The cetineite structure field. X. Wang, F. Liebau, Eur. J. Solid State Inorg. Chem. 35, 27-37, 1998.
• Electronic structure of a novel class of nanoporous materials. F. Starrost, E.E. Krasovskii, W. Schattke, J. Jockel, U. Simon, X. Wang, F. Liebau, Phys. Rev. Letters 80, 3316-3319, 1998.
• A systematic approach to general and structure-type formulas for minerals and other inorganic phases. D.K. Smith, A.C. Roberts, P. Bayliss, F. Liebau, Amer. Mineral. 83, 126-132, 1998.
• K3Sb(III)7O9Se3.3H2O: The first crystalline nanoporous material with a photo-semiconducting host structure. U. Simon, F. Schüth, S. Schunk, X. Wang, F. Liebau, Angew. Chem. Intern. Ed. Engl. 36, 1121-1124, 1997.
• Influence of lone-pair electrons of cations on bond-valence parameters. X. Wang, F. Liebau, Z. Kristallogr. 211, 437-439, 1996.
• Studies on bond and atomic valences. I. Correlation between bond valence and bond angles in Sb(III) chalcogen compounds: The influence of lone-electron pairs. X. Wang, F. Liebau, Acta Crystallogr. B52, 7-15, 1996.

Monograph

• F. Liebau: Structural Chemistry of Silicates. Structure, Bonding and Classification. XII+347 Seiten, Springer-Verlag, Heidelberg, New York, 1985.