Mostrar el registro sencillo del ítem

dc.contributor.author
Martins, Felipe Terra  
dc.contributor.author
Maia, Lauro June Queiroz  
dc.contributor.author
Da Silva Neto, Leonardo  
dc.contributor.author
Da Silva, Cleiton Moreira  
dc.contributor.author
Sarotti, Ariel Marcelo  
dc.contributor.author
De Fátima, Ângelo  
dc.date.available
2018-07-26T23:42:14Z  
dc.date.issued
2017-03  
dc.identifier.citation
Martins, Felipe Terra; Maia, Lauro June Queiroz; Da Silva Neto, Leonardo; Da Silva, Cleiton Moreira; Sarotti, Ariel Marcelo; et al.; Solvatomorphs of 25,26,27,28-tetrahydroxycalix[4]arene and 5,11,17,23-tetramino-25,26,27,28-tetrabutoxycalix[4]arene: quenching photoluminescence through switching the guest; Royal Society of Chemistry; CrystEngComm; 19; 13; 3-2017; 1792-1800  
dc.identifier.issn
1466-8033  
dc.identifier.uri
http://hdl.handle.net/11336/53275  
dc.description.abstract
Here, we have disclosed two solid state forms of 5,11,17,23-tetramino-25,26,27,28-tetrabutoxycalix[4]arene (1) and two solid state forms of the non-functionalized 25,26,27,28-tetrahydroxycalix[4]arene (2). This is the first structural knowledge of a tetra-amino functionalized calixarene derivative, even though this compound is well known and used as a precursor of several other functionalized calix[4]arenes. The two solid forms of 1 differ by the presence of either water or water/dimethylsulfoxide (DMSO) solvent molecules entrapped in the major calixarene cavity, even though the pinched conformation is adopted in both forms as a consequence of the contacts between solvent molecules and phenyl rings. Likewise, the switch from water to DMSO in the cone cavity of 1 has abrogated the photoluminescence (PL) found only in the dihydrate form. Frontier molecular orbital calculations at the B3LYP/6-31G* level of theory support a short-range electron transfer between guest (DMSO) and host (1) molecules quenching the solid state photoluminescence when DMSO is entrapped in the cone. This solvatomorphism approach for PL search in calixarenes opens a perspective on tuning and even increasing the performance of calixarenes through changing the guest solvent molecule. Similarly, the two crystal forms of 2 entrap either methyl alcohol or DMSO in their cones, which, as well as both crystal forms of 1, are packed into sheets through different fashions and contact patterns.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Royal Society of Chemistry  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Calix[4]Arene  
dc.subject
Solvatomorphs  
dc.subject
Photoluminiscence  
dc.subject
Guest Switching  
dc.subject.classification
Otras Ciencias Químicas  
dc.subject.classification
Ciencias Químicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Solvatomorphs of 25,26,27,28-tetrahydroxycalix[4]arene and 5,11,17,23-tetramino-25,26,27,28-tetrabutoxycalix[4]arene: quenching photoluminescence through switching the guest  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2018-07-26T14:01:27Z  
dc.journal.volume
19  
dc.journal.number
13  
dc.journal.pagination
1792-1800  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Cambridge  
dc.description.fil
Fil: Martins, Felipe Terra. Universidade Federal de Goiás; Brasil. Universidade Federal de Minas Gerais; Brasil  
dc.description.fil
Fil: Maia, Lauro June Queiroz. Universidade Federal de Goiás; Brasil  
dc.description.fil
Fil: Da Silva Neto, Leonardo. Universidade Federal de Minas Gerais; Brasil  
dc.description.fil
Fil: Da Silva, Cleiton Moreira. Universidade Federal de Minas Gerais; Brasil  
dc.description.fil
Fil: Sarotti, Ariel Marcelo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Química Rosario. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario; Argentina  
dc.description.fil
Fil: De Fátima, Ângelo. Universidade Federal de Minas Gerais; Brasil  
dc.journal.title
CrystEngComm  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1039/C6CE02649D