Jacques
Abulafia Danon, Brazilian physical chemist (Santos, São Paulo State 23 August
1924 – Paris 30 October 1989) From
Sephardic Jewish heritage Recognized
all over the world as one of the founders of Mossbauer chemical and solid state
spectroscopy International
authority on Mossbauer effect Authored
about 160 papers and 6 books ACHIEVEMENTS Clarified
important aspects of the chemistry of iron compounds and of metallic iron Established
a link between the hyperfine parameters measured by Mossbauer spectroscopy and
the bonding between the atoms in a solid or a molecule (1963-6) Nuclear
isomer shift and convalency in iron complexes. J. Chem. Phys. 39:236-7, 1963
Electronic
structure of transition metal complex which nitrosyl ligand Mossbauer
investigation. J. Chem. Phys. 41:3374-84, 1964 Developed a formalism describing the electronic structure of transition impurities in simple, noble and transition metals With X.A. da Silva & A.A. Gomes. Phys. Rev. B4 1161 & 1168, 1971 With J.M.
Knudsen discovered an iron nickel alloy which can only be produced in high
energy particle accelerators Performed important discoveries in magnetic microorganisms Discovered magnetotactic algae With H. G.P. Lins de Barros, D.M.S. Esquivel & L.P.H. de Oliveira. Magnetotactic algae. An. Acad. Bras. Ciencias 54:258-9, 1982 Other important results With D.M.S. Esquivel, H.G.P. Lins de Barros, M. Farina & P.H.A. Aragão. Microorganismes magnetotactiques de la region de Rio de Janeiro. Biol. Cell. 47:227-34, 1983 With M. Farina, H.G.P. Lins de Barros & D.M.S. Esquivel.
Electron microscopy and
ultrastructure of a magnetotactic microorganism. Biol. Cell. 48:85-8, 1983 Improved
many laboratory techniques Indicated
new procedures for dating objects and minerals (e.g. thermo luminescence) With H. Macedo & A.A.L. Zamith. A stochastic theory of chromatography (1958) Authored An
Introduction to Mossbauer spectroscopy Papers in Nature With R.B. Scorzelli, I.S. Azevedo, J. Laugier & A. Chamberod. Santa Catharina meteorite and phase composition of irradiated Fe-Ni invar alloys. Nature 284:537-8, 1980 With R.B. Scorzelli, I.S. Azevedo, W.C. Curvello, J.F. Albertsen & J.M.Knudsen. Iron-nickel 50-50 Superstructure in the Santa Catharina meteorite. Nature 277:283-4, 1979 With R.B. Scorzelli, I.S. Azevedo & M.C. Michel-Levy. Iron-nickel superstructure in metal particles of chondrites. Nature 281:469-71, 1979 With A.A.L. Zamith. Solvent extraction of polonium from nitric acid solutions. Nature 177:746-7, 1956 HONORS
Chairman,
II Panel on Applications of the Mossbauer effect its Science and Technology,
Atomic Energy International Agency, Vienna (1974) Chairman,
Spring School about Mossbauer Spectroscopy, Hurfeld, Germany (1975) Danonite
Mattievich, Amorim, Amaral Jr., Torres-Tapia & Domínguez 1997 (Synthetic
mixed valence iron arsenate) |
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