A Cd^II‐Based Metal‐Organic Framework with pcu Topology as Turn‐On Fluorescent Sensor for Al³⁺

Abstract

An ew metal-organic framework (MOF) {[Cd 2 (bbib) 2 (ndc) 2 ]·2DMF} n (JXUST-1)( bbib = 1,3-bis(benzimidazolyl)benzene, H 2 ndc = 1,4-naphthalenedicarboxylic acid, DMF = N,N-dimethylformamide) has been solvothermally synthesizeda nd characterizedb ys ingle-crystal X-ray diffraction, PXRD, TGA, IR and elementala nalysis. JXUST-1 exhibits at hree-dimensional 6-connected pcu topologyw ith aS chläfli symbol {4 12 .6 3 }c onstructed by [Cd 2 (CO 2 ) 3 ]s econdary build-ing units. Fluorescence studies show that this MOF can sensitively and selectively recognize Al 3 + via af luorescencee nhancement effect, and the detection limit is 0.048 ppm. Furthermore, JXUST-1 displays relativelyg ood thermal and chemicals tabilities as well as reusability.A ll these results suggest JXUST-1 to be ah ighly selectivea nd recyclable luminescent sensing material for the detection of Al 3 + .[a] S.

A Comprehensive Overview on Advanced Sensing Applications of Functional Metal Organic Frameworks (MOFs)

“…A novel three‐dimensional MOF {[Cd 2 (bbib) 2 (ndc) 2 ] ⋅ 2DMF} n (JXUST‐1) with pcu topology was solvothermally synthesised and could be utilised as an efficient, reusable fluorescence turn‐on probe for the detection of Al 3+ , with low detection limits. The probe was found to exhibit good solvent and thermal stabilities [58] …”

Automated Virtual Design of Organic Semiconductors Based on Metal-Organic Frameworks

“…• Adaptable: User-friendly graphical user interface (GUI) and automated dataflow between multiple module functions allow easy adaptation of the workflow to specific user requirements; Considering the variety of MOF materials and possible attained properties, multiple options for such workflow developments are possible. In the present study, we focus on the primitive cubic (PCU) topology of MOFs (O'Keeffe and Yaghi, 2012) (Figure 1) that is a widely used topology found in fabricated MOF materials (Li et al, 2007;Luo et al, 2017;Wei et al, 2019;Xing et al, 2019;Yao et al, 2019). The PCU topology features the network that describes the MOF-2 family, which has paddle-wheel nodes, such as Zn 2 (CO 2 ) 4 and Cu 2 (CO 2 ) 4 , connected by linkers (Li et al, 1998;Xing et al, 2019;Goldman et al, 2020;Qiao et al, 2020;Yazdanparast et al, 2020) and the MOF-5 family with octahedral nodes, such as Zn 4 (O)O 12 C 6 (Li et al, 1999;Schoedel et al, 2016).…”

“…The PCU topology features the network that describes the MOF-2 family, which has paddle-wheel nodes, such as Zn 2 (CO 2 ) 4 and Cu 2 (CO 2 ) 4 , connected by linkers (Li et al, 1998;Xing et al, 2019;Goldman et al, 2020;Qiao et al, 2020;Yazdanparast et al, 2020) and the MOF-5 family with octahedral nodes, such as Zn 4 (O)O 12 C 6 (Li et al, 1999;Schoedel et al, 2016). It can be formed also from SBUs based on Mg, Cd, Pb, or rare earth metals (Bhattacharya et al, 2014;Luo et al, 2017;Lin et al, 2018;Yao et al, 2019). In addition, MOF films grown using a layer-by-layer technique on the pre-functionalized surfaces, e.g., surface-anchored MOFs (SURMOFs) (Liu et al, 2012;Zhuang et al, 2016), using Cu 2 (CO 2 ) 4 and Zn 2 (CO 2 ) 4 SBUs are often assembled in PCU-type networks.…”

Uncoordinated‐substituents‐induced zinc(II) coordination polymers exhibiting multifunctional fluorescent sensing activity for cations, anions and organochlorine pesticides

“…[33][34][35][36] Most CPs can only be used to detect a single substance, so designing and synthesizing CPs with multifunctional fluorescent recognition sites is an effective method to detect various pollutants. [37][38][39] In…”

“…Compared to some instrumental analysis methods, coordination polymer, as a new fluorescent probe, has the characteristics of low cost, simple detection and high sensitivity [33–36] . Most CPs can only be used to detect a single substance, so designing and synthesizing CPs with multifunctional fluorescent recognition sites is an effective method to detect various pollutants [37–39] …”