1,721,074 research outputs found
The first route to highly stable crystalline microporous zirconium phosphonate metal-organic frameworks.
No full textThe first crystalline microporous zirconium phosphonate metal–
organic framework (UPG-1) was synthesized using the novel tritopic
ligand 2,4,6-tris(4-(phosphonomethyl)phenyl)-1,3,5-triazine. Its crystal
structure was solved ab initio from laboratory powder X-ray diffraction
data. UPG-1 displays remarkable thermal stability and hydrolysis resistance
and has a good absorption affinity towards n-butane and CO2
Erratum: Synthesis, crystal structure, and optical properties of fluorinated poly(pyrazole) ligands and: In silico assessment of their affinity for volatile organic compounds (New Journal of Chemistry (2020) 44 (6443-6455) DOI: 10.1039/D0NJ00259C)
No full textThe authors regret that the spelling of an author’s name was incorrect in the original publication. The correct spelling is Angiolina Comotti, as shown above. The ORCID ID for this author is 0000-0002-8396-8951. The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers
CCDC 1994726: Experimental Crystal Structure Determination
No full textRelated Article: Wojciech Danowski, Fabio Castiglioni, Andy S. Sardjan, Simon Krause, Lukas Pfeifer, Diederik Roke, Angiolina Comotti, Wesley R. Browne, Ben L. Feringa|2020|J.Am.Chem.Soc.|142|9048|doi:10.1021/jacs.0c0306
CCDC 1994728: Experimental Crystal Structure Determination
No full textRelated Article: Wojciech Danowski, Fabio Castiglioni, Andy S. Sardjan, Simon Krause, Lukas Pfeifer, Diederik Roke, Angiolina Comotti, Wesley R. Browne, Ben L. Feringa|2020|J.Am.Chem.Soc.|142|9048|doi:10.1021/jacs.0c0306
CCDC 1994727: Experimental Crystal Structure Determination
No full textRelated Article: Wojciech Danowski, Fabio Castiglioni, Andy S. Sardjan, Simon Krause, Lukas Pfeifer, Diederik Roke, Angiolina Comotti, Wesley R. Browne, Ben L. Feringa|2020|J.Am.Chem.Soc.|142|9048|doi:10.1021/jacs.0c0306
Changing the Dress to a MOF through Fluorination and Transmetalation. Structural and Gas-Sorption Effects
No full textTwo
novel pillared Zn(II)-based Metal–Organic Frameworks
were de novo synthesized exploiting N,N′-(1,1′-biphenyl)-4,4′-diylbis-4-pyridinecarboxamide
(bpba) and its fluorinated analogous N,N′-(perfluoro-1,1′-biphenyl-4,4′-diyl)diisonicotinamide
(F-bpba) as suitable pillar linkers and 2,6-naphthalene dicarboxylic
acid as carboxylic ligand. The resulting heteroleptic MOFs, namely, PUM210, [Zn4(bpba)1.5·(ndc)4·(H2O)]n and PUM210F, [Zn3(F-bpba)1·(ndc)3·(DMF)]n, feature an uncommon
truncation of the Zn(II) paddle-wheel nodes along the pillaring direction. PUM210 and PUM210F exhibit a polycatenated architecture,
resulting in microporous channels decorated by amide moieties. The
activated forms show a permanent porosity and a selective adsorption
of CO2 over N2. Moreover, the partially transmetalated Cu-PUM210 and Cu-PUM210F were obtained by convenient
transmetalation protocol and their adsorption propriety toward CO2 were subsequently investigated
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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