Conţinutul numărului revistei |
Articolul precedent |
Articolul urmator |
693 0 |
SM ISO690:2012 CARIATI, Elena, FORNI, Alessandra, LUCENTI, Elena, MARINOTTO, D., PREVITALI, A., RIGHETTO, S., BOTTA, C., BOLD, Victor, KRAVTSOV, Victor, FONARI, Marina. Extrinsic Heavy Metal Atom Effect on the Solid-State Room Temperature Phosphorescence of Cyclic Triimidazole. In: Chemistry - An Asian Journal, 2019, nr. 6(14), pp. 853-858. ISSN 1861-4728. DOI: https://doi.org/10.1002/asia.201801604 |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
Chemistry - An Asian Journal | ||||||
Numărul 6(14) / 2019 / ISSN 1861-4728 | ||||||
|
||||||
DOI:https://doi.org/10.1002/asia.201801604 | ||||||
Pag. 853-858 | ||||||
|
||||||
Rezumat | ||||||
Four coordination compounds [Zn 3 (CH 3 COO) 6 (H 2 O) 2 ](TT) 2 [Cd(H 2 O) 6 ](ClO 4 ) 2 (TT) 2 , [Cd(H 2 O) 6 ](BF 4 ) 2 (TT) 2 , [Zn(H 2 O) 6 ](BF 4 ) 2 (TT) 2 (1–4) accommodating the crystallization induced emissive triimidazo[1,2-a:1′,2′-c:1′′,2′′-e][1,3,5]triazine (TT) as a guest in their crystal lattice are isolated and fully photophysically and structurally characterized. Their emission properties are compared with those of afterglow TT and interpreted taking into account the heavy atom effect and crystal packing similarities and differences. In the case of 1, due to the closeness of the TT H-aggregates arrangement with that of the phosphor's pure phase, the observed intensification of the phosphorescent emission at the expense of the prompt one is attributed to the extrinsic heavy atom effect of Zn. In 2 and 3, the heavier Cd atom is responsible for a decrease in the lifetimes of the afterglow emission, despite the presence of tightly overlapped H-dimers in the crystal structure. Finally, for 4, isostructural with 3, the Zn atom reveals in RTUP lifetime comparable with that of 1. |
||||||
Cuvinte-cheie extrinsic heavy atom effect, H aggregates, room temperature ultralong phosphorescence, single crystal XRD, time resolved photoluminescence |
||||||
|
DataCite XML Export
<?xml version='1.0' encoding='utf-8'?> <resource xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://datacite.org/schema/kernel-3' xsi:schemaLocation='http://datacite.org/schema/kernel-3 http://schema.datacite.org/meta/kernel-3/metadata.xsd'> <identifier identifierType='DOI'>10.1002/asia.201801604</identifier> <creators> <creator> <creatorName>Cariati, E.</creatorName> <affiliation>Universitatea din Milano, Italia, Italia</affiliation> </creator> <creator> <creatorName>Forni, A.</creatorName> <affiliation>ISTM-CNR, Istituto di Scienze e Tecnologie Molecolari, Italia</affiliation> </creator> <creator> <creatorName>Lucenti, E.</creatorName> <affiliation>ISTM-CNR, Istituto di Scienze e Tecnologie Molecolari, Italia</affiliation> </creator> <creator> <creatorName>Marinotto, D.</creatorName> <affiliation>ISTM-CNR, Istituto di Scienze e Tecnologie Molecolari, Italia</affiliation> </creator> <creator> <creatorName>Previtali, A.</creatorName> <affiliation>Universitatea din Milano, Italia, Italia</affiliation> </creator> <creator> <creatorName>Righetto, S.</creatorName> <affiliation>Universitatea din Milano, Italia, Italia</affiliation> </creator> <creator> <creatorName>Botta, C.</creatorName> <affiliation>ISTM-CNR, Istituto di Scienze e Tecnologie Molecolari, Italia</affiliation> </creator> <creator> <creatorName>Bold, V.M.</creatorName> <affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation> </creator> <creator> <creatorName>Kravţov, V.H.</creatorName> <affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation> </creator> <creator> <creatorName>Fonari, M.S.</creatorName> <affiliation>Institutul de Fizică Aplicată, Moldova, Republica</affiliation> </creator> </creators> <titles> <title xml:lang='en'>Extrinsic Heavy Metal Atom Effect on the Solid-State Room Temperature Phosphorescence of Cyclic Triimidazole</title> </titles> <publisher>Instrumentul Bibliometric National</publisher> <publicationYear>2019</publicationYear> <relatedIdentifier relatedIdentifierType='ISSN' relationType='IsPartOf'>1861-4728</relatedIdentifier> <subjects> <subject>extrinsic heavy atom effect</subject> <subject>H aggregates</subject> <subject>room temperature ultralong phosphorescence</subject> <subject>single crystal XRD</subject> <subject>time resolved photoluminescence</subject> </subjects> <dates> <date dateType='Issued'>2019-03-15</date> </dates> <resourceType resourceTypeGeneral='Text'>Journal article</resourceType> <descriptions> <description xml:lang='en' descriptionType='Abstract'><p>Four coordination compounds [Zn <sub>3</sub> (CH <sub>3</sub> COO) <sub>6</sub> (H <sub>2</sub> O) <sub>2</sub> ](TT) <sub>2</sub> [Cd(H <sub>2</sub> O) <sub>6</sub> ](ClO <sub>4</sub> ) <sub>2</sub> (TT) <sub>2</sub> , [Cd(H <sub>2</sub> O) <sub>6</sub> ](BF <sub>4</sub> ) <sub>2</sub> (TT) <sub>2</sub> , [Zn(H <sub>2</sub> O) <sub>6</sub> ](BF <sub>4</sub> ) <sub>2</sub> (TT) <sub>2</sub> (1–4) accommodating the crystallization induced emissive triimidazo[1,2-a:1′,2′-c:1′′,2′′-e][1,3,5]triazine (TT) as a guest in their crystal lattice are isolated and fully photophysically and structurally characterized. Their emission properties are compared with those of afterglow TT and interpreted taking into account the heavy atom effect and crystal packing similarities and differences. In the case of 1, due to the closeness of the TT H-aggregates arrangement with that of the phosphor's pure phase, the observed intensification of the phosphorescent emission at the expense of the prompt one is attributed to the extrinsic heavy atom effect of Zn. In 2 and 3, the heavier Cd atom is responsible for a decrease in the lifetimes of the afterglow emission, despite the presence of tightly overlapped H-dimers in the crystal structure. Finally, for 4, isostructural with 3, the Zn atom reveals in RTUP lifetime comparable with that of 1.</p></description> </descriptions> <formats> <format>uri</format> </formats> </resource>