Safety in the Laboratory

Dapson, Richard W.

doi:10.1016/b978-0-443-10279-0.50009-9

Cited by 1 publication

(2 citation statements)

References 4 publications

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“…Despite the different applications of TNP, it is explosive, corrosive, and hazardous to human health . The announced recommended exposure limit of TNP and its immediate dangerous concentration to life or health by the US OSHA (Occupational Safety and Health Administration) are 0.1 and 75 mg m –3 , respectively, due to its toxicity and explosivity . Therefore, it is quite necessary to detect TNP by a fast and convenient method.…”

Section: Introductionmentioning

confidence: 99%

“…81 The announced recommended exposure limit of TNP and its immediate dangerous concentration to life or health by the US OSHA (Occupational Safety and Health Administration) are 0.1 and 75 mg m −3 , respectively, due to its toxicity and explosivity. 82 Therefore, it is quite necessary to detect TNP by a fast and convenient method. From a structural view, the hydroxyl function in the molecular skeleton of TNP is the main interactive site that makes TNP able to interact through hydrogen bonding as both a hydrogen-bond (HB)-donor and HB-acceptor guest.…”

Section: Introductionmentioning

confidence: 99%

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A Dihydrotetrazine-Functionalized Metal–Organic Framework as a Highly Selective Luminescent Host–Guest Sensor for Detection of 2,4,6-Trinitrophenol

2022

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Pore decoration of metal−organic frameworks (MOFs) with functional groups is a useful strategy to attain high selectivity toward specific analytes, especially in the presence of interfering molecules with similar structures and energy levels, through selective host−guest interactions. In this work, we applied a dihydrotetrazine-decorated MOF, TMU-34, with the formula [Zn(OBA)(H 2 DPT) 0.5 ] n •DMF, where H 2 OBA is 4,4′-oxybis-(benzoic acid) and H 2 DPT is 3,6-bis(pyridin-4-yl)-1,4-dihydro-1,2,4,5-tetrazine, for the highly selective detection of phenolic NACs, especially TNP (94% quenching efficiency, detection limit 8.1 × 10 −6 M, K SV = 182663 mol L −1 ), in the presence of other substituted NACs especially −NH 2 -substituted NACs. Investigations reveal that the quenching mechanism is dominated by photoinduced MOF-to-TNP electron transfer through possible hydrogen-bonding interactions between the phenolic hydroxyl group of TNP and dihydrotetrazine functions of TMU-34. Despite extensive publications on the detection of TNP in the presence of other NACs, the significance of this work will be elucidated if attention is paid to the fact that TMU-34 is among the rare and highly selective MOF-based TNP sensors in the presence of −NH 2 -substituted NACs as the serious interferers.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%