The low-temperature behaviour of cancrinite: an in situ single-crystal X-ray diffraction study (Articolo in rivista)

Type

• Prodotto della ricerca (Classe)
• Articolo in rivista (Classe)

Label

• The low-temperature behaviour of cancrinite: an in situ single-crystal X-ray diffraction study (Articolo in rivista) (literal)

Anno

• 2012-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1180/minmag.2012.076.4.10 (literal)

Alternative label

• Gatta, G. Diego; Lotti, P.; Kahlenberg, V.; Haefeker, U (2012)
  The low-temperature behaviour of cancrinite: an in situ single-crystal X-ray diffraction study
  in Mineralogical magazine (Print)
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Gatta, G. Diego; Lotti, P.; Kahlenberg, V.; Haefeker, U (literal)

Pagina inizio

• 933 (literal)

Pagina fine

• 948 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://minmag.geoscienceworld.org/content/76/4/933.abstract#aff-1 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 76 (literal)

Rivista

• Mineralogical magazine (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 16 (literal)

Note

• ISI Web of Science (WOS) (literal)
• Scopus (literal)
• Google Scholar (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Botticelli 23, I-20133 Milano, Italy CNR-Istituto per la Dinamica dei Processi Ambientali, Milano, Italy Institut für Mineralogie und Petrographie, Leopold Franzens Universität Innsbruck, Innrain 52, A - 6020 Innsbruck, Austria (literal)

Titolo

• The low-temperature behaviour of cancrinite: an in situ single-crystal X-ray diffraction study (literal)

Abstract

• The low-temperature structural behaviour of natural cancrinite with a formula Na6.59Ca0.93[Si6.12Al5.88O24](CO3)1.04F0.41·2H2O has been investigated by means of in situ single-crystal X-ray diffraction and Raman spectroscopy. High quality structure refinements were obtained at 293, 250, 220, 180, 140, 100 and at 293 K again (at the end of the low-T experiments). The variation in the unit-cell volume as a function of temperature (T) exhibits a continuous trend, without any evident thermoelastic anomaly. The thermal expansion coefficient ?V = (1/V)?V/?T is 3.8(7) × 10-5 K-1 (between 100 and 293 K). The structure refinement based on intensity data collected at ambient conditions after the low-T experiment confirmed that the low-T induced deformation processes are completely reversible. The extraframework population does not show significant variations down to 100 K. The strong positional disorder of the carbonate groups along the c axis persists within the T range investigated. The structural behaviour of cancrinite at low-T is mainly governed by the continuous framework rearrangement through the ditrigonalization of the six-membered rings which lie in a plane perpendicular to [0001], the contraction of the four-membered ring joint units, the decrease of the ring corrugation in the (0001) plane, and the flattening of the cancrinite cages. A list of the principal Raman active modes in ambient conditions is provided and discussed. (literal)

Prodotto di

• Strategie di valutazione e valorizzazione di riserve idriche e georisorse territoriali (TA.P04.036.001) (Modulo)
• Istituto per la dinamica dei processi ambientali (IDPA) (Istituto)

Autore CNR

• giacomo diego Gatta (Unità di personale esterno)

Incoming links:

Prodotto

• Istituto per la dinamica dei processi ambientali (IDPA) (Istituto)
• Strategie di valutazione e valorizzazione di riserve idriche e georisorse territoriali (TA.P04.036.001) (Modulo)

Autore CNR di

• giacomo diego Gatta (Unità di personale esterno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Mineralogical magazine (Rivista)