philosopher … They are Murray Gell-Mann, the Nobel laureate in Physics, and
Ricardo Ferreira. Ricardo was all this, and above all a humanist. Brazilian science
has lost one of his most inspiring scientists.
Thereza A. Soares
Arnóbio A.S. da Gama
Roberto D. Lins
Gilberto F. de Sá
Oscar L. Malta
Department of Fundamental Chemistry
Federal University of Pernambuco, Recife, PE
50740-560, Brazil
Marco Antonio Chaer do Nascimento
Department of Physical Chemistry
Federal University of Rio de Janeiro, Rio de Janeiro, RJ
21941-909, Brazil
References
1. Ferreira RC (1947) The central angle of the tetrahedron. J Chem Educ 24, 246
2. Ferreira RC (1953) Resolution of racemic mixtures by symmetrical agents. Nature 171, 39
3. De Giambiagi MS, Giambiagi M, Ferreira RC (1964) Une Approximation pour les Paramètres
Semi-Empiriques dans les Molécules Conjuguées. Journal de Chimie Physique et de PhysicoChimie Biologique 61, 697–705
4. Ferreira RC (1960) Dipole moment data and hyperconjugation. Nature 188, 848
5. Ferreira RC (1963) Principle of electronegativity equalization. Part 1. Bond moments and force
constants. Trans Faraday Soc 59, 1064–1074
6. Ferreira RC (1963) Principle of elecronegativity equalization. Part 2. Bond-dissociation
energies. Trans Faraday Soc 59, 1075–1079
7. Tsallis C (2008) My friend Ricardo Ferreira, an impressive natural philosopher. J Braz Chem
Soc 19, 203–205
Obituary
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