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Dr. Egbert Keller

Dipl.-Chemiker
former staff member (wissenschaft-
licher Angestellter), 1981-2011       
 
former address:
Kristallographie, Institut für Geo-
und Umweltnaturwissenschaften
Albert-Ludwigs-Universität Freiburg               
Hermann-Herder-Str. 5
79104 Freiburg i.Br. / Germany

e-mail address:
eukell77@gmail.com

 
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Former fields of activity

* crystal structure analysis

* crystal chemistry

* synthesis and characterization of    ternary and multinary solid-state    compounds

* computer programming

   ... a nostalgic look back to last century software: SCHAKAL

 

Former and present hobbies

* making noise (former)

* taking naps (present)

 

Most Recent Formatted Exudations

E. Keller
On the unit cell volume expansion in homogeneous series of isotypic structures of "ionic" compounds
Z. Kristallogr. 231 (2016), 691-708.

P. Schultz and E. Keller
Strong Positive and Negative Deviations from Vegard′s Rule: X-Ray Powder Investigations of the three Quasi-Binary Phase Systems BiSX1-xYx (X,Y = Cl, Br, I)
Acta Cryst. B70 (2014), 372-378.

L. Rees-Isele, H.-P. Winkler and E. Keller
In Search of the True Structure of the Sodium Chromium Alum II: Crystal Growth and Structure of the Double Salt NaCr(SO4)2(H2O)6 * (CH3OH)0.6(2) * (H2O)1.5(5)
Z. Naturforsch. (2013), 68b, 1-7.

L. Rees-Isele and E. Keller
In Search of the True Structure of the Sodium Chromium Alum: Crystal Growth and Structure of the Double Salt NaCr(SO4)2(H2O)6
Z. Naturforsch. (2012), 67b, 1229-1234.

H. P. Winkler, D. Topa and E. Keller
Pb5In3Bi5S17 [ Pb4.94(3)In3.05(3)Bi4.99(3)S17 ] and its structural relationship with Pb4In3Bi7S18
Acta Cryst. (2012), C68, i45-i49.

I. Reis, V. Krämer, A. Seiler, D. Topa and E. Keller
Pb5.0(1)In8.4(1)Bi1.6(1)S20, a new quaternary lead indium bismuth sulfide
Acta Cryst. (2012). C68, i12-i16.

J. Fischer*, A. Ebinger, T. Hägi, B. Stawarczyk, A. Wenger, E. Keller
Mold filling and dimensional accuracy of titanium castings in a spinel-based investment.
Dental materials 25 (2009), 1376-1382.

S. Müller, O. Schäfer and E. Keller
Rock salt-Urea-Water (1/1/1) at 293 and 117 K
Acta Cryst. C64 (2008), m300-m304

E. Keller and C. Röhr
Structural changes within and between the two isotypic series ABiO2 (A = Na, K, Rb, Cs) and ASbO2 (A = K, Rb, Cs)
Z. Kristallogr. 223 (2008), 431-440

E. Keller and V. Krämer
Bi5O7Br and its structural relation to Bi5O7I
Acta Cryst. C63 (2007), i109-i111

E. Keller and V. Krämer
Crystal Structure of the Trihydrate of the Neuraminidase Inhibitor C15H28N4O4 (Peramivir), a Potential Influenza A/B and Avian-influenza (H5N1) Drug
Z. Naturforsch. 62b (2007), 983-987

E. Keller, V. Krämer and C. A. Meyer
Syntheses of the new compounds NaBi6O9X (X = Br, I) and the mixed systems Na0.77(3)K0.23(3)Bi6O9I, Rb0.91(3)K0.05(1)Na0.04(2)Bi6O9Br and Rb0.89(4)K0.05(1)Na0.06(3)Bi6O9I
Mat. Res. Bull. 42 (2007), 1391-1394

E. Keller and V. Krämer
"Ionic" size differences from bond-valence parameters and from ionic radii
Acta Cryst. B62 (2006), 411-416

E. Keller and V. Krämer
Experimental versus expected halide-ion size differences; structural changes in three series of isotypic bismuth chalcogenide halides
Acta Cryst. B62 (2006), 417-423

 

plus a couple of additional papers produced in (or dealing with results obtained in) the 2nd millenium

... at Kristallographisches Institut der Universität Freiburg (selection)
U. Eggenweiler, J. Ketterer, E. Keller, and V. Krämer*
The crystal structure of α-Bi5O7I
Z. Kristallogr. 216 (2001), 230-233.
U. Eggenweiler, E. Keller, V. Krämer*, C.A. Meyer, and J. Ketterer
Synthesis and crystal structure of the new isotypic compounds KBi6O9X (X = Cl, Br, I)
Z. Kristallogr. 213 (1998), 377-381.
H. Schwer, E. Keller, and V. Krämer*
Crystal Structure and Twinning of KCd4Ga5S12 and Some Isotypic AB4C5X12 Compounds
Z. Kristallogr. 204 (1993), 203-213.
E. Keller
Some Computer Drawings of Molecular and Solid-State Structures
J. Appl. Crystallogr. 22 (1989), 19-22.
J. Ketterer, E. Keller, and V. Krämer*
Crystal Structure of Bismuth Oxide Iodide, β-Bi5O7I
Z. Kristallogr. 172 (1985), 63-70.
E. Keller
Röntgenstrukturanalyse von Molekülen
Chem. unserer Zeit 16 (1982), 71-88 and 116-123.

 
 
... during postdoctoral time at the University of Konstanz (1980-1981)

F. Wochner, E. Keller, and H. H. Brintzinger*
Molecular Structure and Chemical Properties of a Binuclear Cyclopentadienylcobalt Nitrosyl Cation
J. Organomet. Chem. 236 (1982), 267-272.

 
 
... during postdoctoral time at the University of Freiburg (1978-1980) (selection)

E. Keller und D. Wolters
Benzonitril als 6-Elektronen-Donor-Ligand: Die Cluster Fe3(CO)2[μ3(h2)-NCC6H5] und Fe4(CO)12[μ4(h2)-NCC6H5]
Chem. Ber. 117(1984), 1572-1582.
E. Keller und H. Vahrenkamp*
Eisen- und Cobalt-Cluster nach der Propen-Eliminierungs-Methode. Die Cluster Co4(CO)10[P(CH3)2CH2CHCH2]2 und Fe2Co(CO)8[μ-SCH3]2[μ-P(CH3)2]
Chem. Ber 114 (1981), 1111-1123.
E. Keller
Kalottenmodelle
Chem. unserer Zeit 14 (1980), 56-60.

 
 
... from Ph.D. Thesis (1975-1978) (selection)

E. Keller und H. Vahrenkamp*
Ein unerwartet unsymmetrischer Dreikerncluster: Synthese und Struktur von [(CO)2Co-μ-PMe2]3
J. Organomet. Chem. 155 (1978), C41-C44.
E. Keller und H. Vahrenkamp*
Nucleophile Öffnung von Metall-Metall-Bindungen durch Phosphine: Strukturen zweier isomerer Reaktionsprodukte mit Fe-As-Mn- P-Gerüst
Chem. Ber. 111, 65-71 (1978).
E. Keller und H. Vahrenkamp*
Co5(CO)11(PR2)3, ein neuer Typ von Fünfkerncluster
Angew. Chem. 89 (1977), 738-739, Angew. Chem. Int. Ed. Engl. 16 (1977), 731-732.

 
 
... from Diploma Thesis (1974-1975)

E. Keller und H. Vahrenkamp*
Einfluß der Liganden auf Metall-Metall-Bindungslängen: Die Kristallstruktur von FeCo(CO)7As(CH3)2
Chem. Ber. 109, 229-236 (1976).
*Correspondence author (if not EK)