Investigation of crystal structure and optical properties of [Eu(1,2,4-BTC)], (1,2,4-BTC=1,2,4-benzenetricarboxylic acid) coordination polymer

Yıl 2017, Cilt: 19 Sayı: 3, 44 - 49, 07.12.2017

Adem Dönmez , Uğur Erkarslan Şehmuz Karadeniz

https://doi.org/10.25092/baunfbed.363758

Cited By: 1

Öz

Porous coordination polymers composed of
metal clusters and organic binders have promised material science as a new
class material with a wide range of applications such as photo-probes, organic
light emitting diodes, sensors, photo-catalysis and other light emitting
devices. It has been observed that the properties of porous coordination
polymers frequently change when designing building blocks that are highly
related to manipulative organic molecules. Therefore, the novel materials can
be specifically synthesized for improving properties and discovering new
applications.

 

In this study, a new porous coordination
polymer containing Eu-(III): [Eu(1,2,4-BTC)], (1,2,4-BTC=1,2,4-
Benzenetricarboxylic acid)  were
synthesized by hydrothermal method and characterized by powder X-ray
diffraction, solid state UV and FT-IR spectra. In addition, the solid-state
photoluminescence (PL) properties at room temperature were measured in the
visible region and near infrared region and compared with the PL measurement of
its free ligand. Since the synthesized material has the characteristic strong
luminescence properties in the NIR region, there could have many potential
applications in optical communication, medical diagnosis and many other
technological fields.

Anahtar Kelimeler

Luminescence, porous coordination polymer, Europium

[Eu(1,2,4-BTC)], (1,2,4-BTC=1,2,4- benzen trikarboksilik asit) koordinasyon polimerinin kristal yapı ve optik özelliklerinin araştırılması

Öz

Metal kümelerden ve organik
bağlayıcılarından oluşan gözenekli koordinasyon polimerleri foto-problar,
organik ışık yayan diyotlar, sensörler, foto-katalizöterler ve diğer ışık
yayımlayabilen aygıtlar gibi çeşitli geniş uygulama alanlarıyla yeni sınıf bir
malzeme olarak malzeme bilimine umut vermektedir. Gözenekli koordinasyon
polimerlerinin özelliklerinin, organik moleküller ile bağlantılı yapı taşlarını
orantılı bir biçimde tasarlarken sıklıkla değiştiği gözlemlenmiştir. Bu nedenle
özel olarak sentezlenebilen yeni malzemeler ile yeni uygulama alanları
keşfedilebilmekte ve bunların özellikleri geliştirilebilmektedir. Bu çalışmada; yeni Eu(III) içeren
gözenekli koordinasyon polimeri; [Eu(1,2,4-BTC)], (1,2,4-BTC=1,2,4- Benzen
trikarboksilik asit) hidrotermal yöntem ile sentezlenmiş ve toz kristal X-ışını
kırınımı, katı hal UV ve FT-IR spektroskopisi teknikleri ile yapısal olarak
karakterize edilmiştir. Ayrıca oda sıcaklığında katı-hal fotolüminesans (PL)
özellikleri görünür bölge ve yakın kızıl ötesi bölgede ölçülmüş ve serbest
liganddan elde edilen PL ölçümüyle karşılaştırılmıştır. Sentezlenen malzeme NIR
bölgede karakteristik şiddetli lüminesans özelliğe sahip olduğu için optik
haberleşme, medikal teşhis ve diğer birçok teknolojik alanda potansiyel
uygulama alanına sahip olabilir.

Anahtar Kelimeler

Lüminesans, gözenekli koordinasyon polimeri, Evropiyum

Kaynakça

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