Titre du document / Document title

Re-discovery and re-definition of dinite, C₂₀H₃₆, a forgotten organic mineral from Garfagnana, northern Tuscany, Italy

Auteur(s) / Author(s)

FRANZINI L. ; PASERO M. ; PERCHIAZZI N. ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

Univ. Pisa, dip. chimica chimica industriale, Pisa 56126, ITALIE

Résumé / Abstract

The rare organic mineral dinite was found during the last century at Castelnuovo Garfagnana, Tuscany, Italy. After a chemical study, which indicated an erroneous chemical formula C₁₈H₁₆, it was stored in the Mineralogical Museum of the University of Pisa, where it was recently relocated. A new chemical analysis was carried out on dinite, and NMR, IR and mass spectra are presented here. The new data allows a re-definition of dinite as a distinct mineralogical species, with chemical formula C₂₀H₃₆. Single crystal X-ray diffraction work showed dinite to be orthorhombic, space group P2₁2₁2₁, with a=12.356, b=12.762, c=11.247 Å. Its crystal structure has been refined up to R=0.068. Dinite is an alicyclic saturated hydrocarbon with three condensed cycles in the formula unit

Revue / Journal Title

European journal of mineralogy   ISSN 0935-1221 

Source / Source

1991, vol. 3, n^o5, pp. 855-861 (16 ref.)

Langue / Language

Anglais

Editeur / Publisher

Schweizerbart, Stuttgart, ALLEMAGNE  (1989) (Revue)

Mots-clés anglais / English Keywords

Tuscany ; organic carbon ; nuclear magnetic resonance ; NMR spectra ; infrared spectra ; mass spectra ; mineral composition ; X-ray diffraction analysis ; single-crystal method ; symmetry ; space groups ; cell dimensions ; hydrocarbons ; chemical composition ; crystal structure ; organic compounds ; atomic packing ; Italy ; Europe ;

Mots-clés français / French Keywords

Toscane ; Carbone organique ; Résonance magnétique nucléaire ; Spectre RMN ; spectre IR ; Spectre masse ; Composition minéralogique ; Diffraction RX ; Diagramme monocristal ; Symétrie ; Groupe espace ; Constante réticulaire ; Composé hydrocarbure ; Analyse chimique ; Structure cristalline ; Minéral organique ; Empilement atome ; Dinite ; Donnée nouvelle ; Italie ; Europe ;

Mots-clés espagnols / Spanish Keywords

Toscana ; Carbono orgánico ; Resonancia magnética nuclear ; Espectro de RMN ; Espectro IR ; Espectro masa ; Composición mineralógica ; Difracción RX ; Diagrama monocristal ; Simetría ; Grupo espacio ; Constante reticular ; Compuesto hidrocarburo ; Análisis químico ; Estructura cristalina ; Mineral orgánico ; Estructura átomo ; Italia ; Europa ;

Localisation / Location

INIST-CNRS, Cote INIST : 519, 35400001017921.0100