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Analysis of institutional authors

Fernandez, AbAuthorCorma, AAuthor

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October 29, 2024
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NMR spectroscopy and theoretical calculations demonstrate the nature and location of active sites for the Beckmann rearrangement reaction in microporous materials

Publicated to: Journal Of Catalysis. 249 (1): 116-119 - 2007-07-01 249(1), DOI: 10.1016/j.jcat.2007.03.030

Authors:

Fernandez, A B; Lezcano-Gonzalez, I; Boronat, M; Blasco, T; Corma, A
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Affiliations

- Author

Abstract

N-15 solid-state NMR and theoretical calculations were combined to investigate the Beckmann rearrangement of N-15-cyclohexanone oxime and N-15-cycloclodecanone oxime over two MFI-type zeolites as catalysts, H-ZSM-5 and silicalite, containing Bronsted acid sites and silanol groups, respectively. The results demonstrated that the Beckmann rearrangement of cyclohexanone oxime to epsilon-caprolactam occurs in the interior of the pores of MFI zeolites and that O-protonated epsilon-caprolactam is formed over the Bronsted acid centers. The acid groups placed at the outer shell of the crystals, probably at the pore mouths, are also active; meanwhile, external silanol groups are significantly less active and less selective than the internal ones. (C) 2007 Elsevier Inc. All rights reserved.
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Keywords

<sup>15</sup>n nmrBeckmann rearrangementBinding sitesCaprolactamCatalysisCatalyst activityCyclohexanone oximeEpsilon-caprolactamLaurolactamMfiMicroporous materialsMolecular structureN-15 nmrNuclear magnetic resonanceOximeProtonationSilicaliteTheoretical calculationsZeoliteZeolitesZsm-5

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Journal Of Catalysis due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2007, it was in position 14/111, thus managing to position itself as a Q1 (Primer Cuartil), in the category Chemistry, Physical.

Independientemente del impacto esperado determinado por el canal de difusión, es importante destacar el impacto real observado de la propia aportación.

Según las diferentes agencias de indexación, el número de citas acumuladas por esta publicación hasta la fecha 2026-01-13:

  • WoS: 33
  • Scopus: 34
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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-01-13:

  • The use, from an academic perspective evidenced by the Altmetric agency indicator referring to aggregations made by the personal bibliographic manager Mendeley, gives us a total of: 33.
  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 33 (PlumX).
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Fernández Guerras, Ana Belén) and Last Author (Corma Canós, Avelino).

the author responsible for correspondence tasks has been Blasco, T.

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