Chemistry at air/water interface versus reaction in a flask:tuning molecular conformation in thin films (Articolo in rivista)

Type

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

Label

• Chemistry at air/water interface versus reaction in a flask:tuning molecular conformation in thin films (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

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

• 10.1021/la8023502 (literal)

Alternative label

• Mukheijee, Smita (1); Datta, Alokmay (1); GIGLIA, ANGELO (2); Mahne, Nicola (2); NANNARONE, STEFANO (3); (2009)
  Chemistry at air/water interface versus reaction in a flask:tuning molecular conformation in thin films
  in Langmuir (Online); American Chemical Society, Washington (Stati Uniti d'America)
  (literal)

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

• Mukheijee, Smita (1); Datta, Alokmay (1); GIGLIA, ANGELO (2); Mahne, Nicola (2); NANNARONE, STEFANO (3); (literal)

Pagina inizio

• 3519 (literal)

Pagina fine

• 3528 (literal)

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

• http://pubs.acs.org/doi/abs/10.1021/la8023502 (literal)

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

• 25 (literal)

Rivista

• Langmuir (Rivista)

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

• 9 (literal)

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

• 6 (literal)

Note

• Scopu (literal)

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

• (1) Surface Physics Division - Saha Institute of Nuclear Physics; (2) TASC-INFM National Laboratory - ; (3) INFM and Dipartimento di Ingegneria Dei Materiali ed Amb - Universita di Modena e Reggio Emilia (literal)

Titolo

• Chemistry at air/water interface versus reaction in a flask:tuning molecular conformation in thin films (literal)

Abstract

• Atomic force microscopy and X-ray reflectivity studies of cobalt stearate Langmuir-Blodgett (LB) films (CoStp) deposited from a preformed bulk sample on quartz substrates showed formation of a Volmer-Weber type monolayer but no multilayers as compared to the excellent multilayers of cobalt stearate films (CoStn) deposited at the air/water interface by the usual LB technique, in spite of both showing bidentate bridging type coordination of cobalt ions with the carboxylate group. The difference is attributed to existence of different headgroup conformers, observed from Fourier transform infrared (FTIR) studies. The CoStp films had a higher energy 'boat' conformation with linear O-Co-O linkage, whereas CoStn formed a low energy conformer with a bent O-Co-O configuration (bond angle of 105°). Present results support the necessity of bidentate bridging coordination in multilayer deposition, but rejects its sufficiency by bringing out the crucial role played by air/water interface. Differences in surface pressure-molecular area isotherms and hydrocarbon tail-tail interactions (evident from FTIR spectra) of the films support the above statement. Methyl-methyl interactions observed in CoStn samples suggest hierarchy of supramolecular chemistry at the air/water interface in tuning the C-O-Co bond angle essential to satisfy the wetting condition with the substrate and subsequently form LB multilayers. (literal)

Editore

• American Chemical Society (Editore)

Prodotto di

• MD.P03.009.001 Ottica e spettroscopia nell'intervallo spettrale UV-X soffici (MD.P03.009.002) (Modulo)

Autore CNR

• NICOLA MAHNE (Unità di personale interno)
• ANGELO GIGLIA (Persona)
• STEFANO NANNARONE (Unità di personale esterno)

Incoming links:

Autore CNR di

• ANGELO GIGLIA (Persona)
• STEFANO NANNARONE (Unità di personale esterno)
• NICOLA MAHNE (Unità di personale interno)

Prodotto

• MD.P03.009.001 Ottica e spettroscopia nell'intervallo spettrale UV-X soffici (MD.P03.009.002) (Modulo)

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

• Langmuir (Rivista)

Editore di

• American Chemical Society (Editore)