Hydrothermal synthesis and crystal structure of a luminescent 3D lead(II) coordination polymer [Pb(4-cca)]n (4-cca=4-carboxycinnamate)

Wu, Bing; Ren, Zhi‐Gang; Li, Hong‐Xi; Dai, Ming; Li, Duanxiu; Zhang, Yong; Lang, Jian‐Ping

doi:10.1016/j.inoche.2009.09.020

Cited by 20 publications

(1 citation statement)

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“…In most cases, organic ligands were selected due to the occurrence of delocalized π-systems like the aromatic ring sensitizing the luminescence of the Ln 3+ sites [16]. Meanwhile, coordination polymers with the specific group and transition metal ions that are heterometallic or co-doped with different lanthanide content suggest controllable options for luminescence performance [17][18][19][20][21][22]. The host lattice prepared a suitable distance between the lanthanide ions, thus the quenching effect will be as a result of the dopant concentration that is generally attenuated [23,24].…”

Section: Introductionmentioning

confidence: 99%

Dual-emitting barium based metal-organic nanosheets as a potential sensor for temperature and anthrax biomarkers

2020

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The development of novel 2D materials, due to the promising applications they have enabled through their unique properties, has attracted increasingly more research interest. In this regard, novel dual-emitting coordination polymer nanosheets were developed by doping Eu 3+ and Tb 3+ ions into the nanostructures of the [Ba(DPA) 2 (H 2 O) 2 ] n (DPA=dipicolinic acid) coordination polymer (BCP). Single crystal x-ray crystallography revealed that BCP is a 1D coordination polymer and its three-dimensional supramolecular architecture is constructed with a relatively strong hydrogen bonding in the ac crystallographic plane and weak non-covalent interactions along the b axis. Using energetic ultrasound irradiations, synthesis of nanoscale BCP along with the unzipping of the weak interactions between the ac layers was accomplished. The resulting BCP nanosheets was used as the host lattice and was doped with Eu 3+ and Tb 3+ ions. Remarkably, the sensing ability of both Eu 3+ and Tb 3+ doped coordination polymer (Ln@BCP) nanosheets towards temperature and the DPA anthrax biomarker were investigate. The high relative sensitivity value of 2.42% K −1 and their reusability, makes Ln@BCP nanosheets an ideal candidate for the nanothermometry. They also exhibited high selective detection characteristics towards the DPA anthrax biomarker with a 0.03 nM detection limit. Therefore, Ln@BCP nanosheets can also be considered as an efficient multi-responsive optical sensor.

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