Coordination chemistry approaches to societal issues: environmental and health

Supramolecular assemblies derived from methyl-substituted cucurbit[5]uril and lanthanide nitrates (2024)
Journal Article
Yuan, S. W., Dai, X., Lu, J. H., Ma, P. H., Dalgarno, S. J., Redshaw, C., Tao, Z., & Xiao, X. (2024). Supramolecular assemblies derived from methyl-substituted cucurbit[5]uril and lanthanide nitrates. Heliyon, 10(13), Article e32936. https://doi.org/10.1016/j.heliyon.2024.e32936

Interaction of the lanthanide nitrates M(NO3)3 (M = Gd, Eu) with methylcucurbit[5]uril (Me10Q[5]) in the presence of transition metal chlorides (ZnCl2 and FeCl3) in acidic media resulted in the isolation of the complexes [Me10Q[5]Gd(H2O)2Cl Gd(H2O)6]... Read More about Supramolecular assemblies derived from methyl-substituted cucurbit[5]uril and lanthanide nitrates.

Selective detection of paraquat by a cucurbit[7]uril-based fluorescent probe (2024)
Journal Article
Shan, P. H., Pan, D. W., Li, C. R., Meng, T. H., Redshaw, C., Tao, Z., & Xiao, X. (2024). Selective detection of paraquat by a cucurbit[7]uril-based fluorescent probe. Journal of Pesticide Science, 49(2), 114-121. https://doi.org/10.1584/JPESTICS.D23-062

A simple fluorescent “on-off” system that can be utilized for the selective identification and determination of paraquat (PQ) is presented herein. 1H NMR spectroscopic data indicated that in aqueous solution the alkaloid palmatine can be partially en... Read More about Selective detection of paraquat by a cucurbit[7]uril-based fluorescent probe.

A cucurbit[8]uril-based fluorescent probe for the selective detection of pymetrozine (2023)
Journal Article
Shan, P. H., Pan, D. W., Chen, L. X., Prior, T. J., Redshaw, C., Tao, Z., & Xiao, X. (2023). A cucurbit[8]uril-based fluorescent probe for the selective detection of pymetrozine. Journal of molecular structure, 1294(2), Article 136418. https://doi.org/10.1016/j.molstruc.2023.136418

Herein, we report a simple fluorescence-enhanced system for the selective recognition and determination of the insecticide pymetrozine. 1H NMR spectroscopic data indicate that 1,2-bis(4-pyridyl)ethylene (BPE) is partially encapsulated in the cavity o... Read More about A cucurbit[8]uril-based fluorescent probe for the selective detection of pymetrozine.

Ultralong nitrogen/sulfur Co-doped carbon nano-hollow-sphere chains with encapsulated cobalt nanoparticles for highly efficient oxygen electrocatalysis (2023)
Journal Article
Zhang, W., Guo, X., Li, C., Xue, J. Y., Xue, J., Xu, W. Y., Xu, W., Niu, Z., Gu, H., Redshaw, C., & Lang, J. P. (2023). Ultralong nitrogen/sulfur Co-doped carbon nano-hollow-sphere chains with encapsulated cobalt nanoparticles for highly efficient oxygen electrocatalysis. Carbon Energy, https://doi.org/10.1002/cey2.317

The development of simple and effective strategies to prepare electrocatalysts, which possess unique and stable structures comprised of metal/nonmetallic atoms for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER), is currently an u... Read More about Ultralong nitrogen/sulfur Co-doped carbon nano-hollow-sphere chains with encapsulated cobalt nanoparticles for highly efficient oxygen electrocatalysis.

Host-guest inclusion complexes formed between a symmetrical tetrasubstituted cucurbit[6]uril and glycine (2022)
Journal Article
Yuan, S. W., Shan, P. H., Yang, M. X., Yang, M. X., Ma, P. H., Prior, T. J., Redshaw, C., Wei, G., Tao, Z., & Xiao, X. (2022). Host-guest inclusion complexes formed between a symmetrical tetrasubstituted cucurbit[6]uril and glycine. CrystEngComm, https://doi.org/10.1039/d2ce01308h

Herein, we have investigated the host-guest inclusion complexes formed on interaction of the symmetric tetramethyl-substituted cucurbit[6]uril (TMeQ[6]) with glycine (Gly) under different conditions. The interactions have been studied both in solutio... Read More about Host-guest inclusion complexes formed between a symmetrical tetrasubstituted cucurbit[6]uril and glycine.

Cucurbit[6]uril-based carbon dots for recognizing l-tryptophan and capecitabine (2022)
Journal Article
Liu, M., Cen, R., Lu, J. H., Meng, T. H., Li, C. R., Redshaw, C., Prior, T. J., Tao, Z., & Xiao, X. (in press). Cucurbit[6]uril-based carbon dots for recognizing l-tryptophan and capecitabine. Materials Chemistry Frontiers, https://doi.org/10.1039/d2qm00589a

Fluorescent nitrogen and fluorine doped carbon dots (CDs) were prepared by a hydrothermal method using levofloxacin (LVFX) and cucurbit[6]uril (Q[6]) as the nitrogen and carbon sources, respectively. Decomposition of LVFX occurred at elevated tempera... Read More about Cucurbit[6]uril-based carbon dots for recognizing l-tryptophan and capecitabine.

New dual-mode orthogonal tunable fluorescence systems based on cucurbit[8]uril: White light, 3D printing, and anti-counterfeit applications (2022)
Journal Article
Zhang, T. T., Yang, X. N., Hu, J. H., Luo, Y., Liu, H. J., Tao, Z., Xiao, X., & Redshaw, C. (2023). New dual-mode orthogonal tunable fluorescence systems based on cucurbit[8]uril: White light, 3D printing, and anti-counterfeit applications. Chemical Engineering Journal, 452, Article 138960. https://doi.org/10.1016/j.cej.2022.138960

In this work, we have utilized a supramolecular approach to control emission, and generate white light and have applied the system to both 3D printing and counterfeiting applications. In particular, we report two new dual-mode orthogonal tunable fluo... Read More about New dual-mode orthogonal tunable fluorescence systems based on cucurbit[8]uril: White light, 3D printing, and anti-counterfeit applications.

Ring Opening Polymerization of Lactides and Lactones by Multimetallic Titanium Complexes Derived from the Acids Ph2C(X)CO2H (X = OH, NH2) (2022)
Journal Article
Zhang, X., Prior, T. J., Chen, K., Santoro, O., & Redshaw, C. (2022). Ring Opening Polymerization of Lactides and Lactones by Multimetallic Titanium Complexes Derived from the Acids Ph2C(X)CO2H (X = OH, NH2). Catalysts, 12(9), Article 935. https://doi.org/10.3390/catal12090935

The reactions of the titanium alkoxide [Ti(OR)4] (R = Me, nPr, iPr, tBu) with the acids 2,2’-Ph2C(X)(CO2H), where X = OH and NH2, i.e., benzilic acid (2,2’-diphenylglycolic acid, L1H2), and 2,2’-diphenylglycine (L2H3), have been investigated. The var... Read More about Ring Opening Polymerization of Lactides and Lactones by Multimetallic Titanium Complexes Derived from the Acids Ph2C(X)CO2H (X = OH, NH2).

Facile fluorescent detection of o-nitrophenol by a cucurbit[8]uril-based supramolecular assembly in aqueous media (2022)
Journal Article
He, J., Yu, X. Y., Yu, Z. C., Liu, M., Shan, P. H., Redshaw, C., Huang, Y., Tao, Z., & Xiao, X. (2022). Facile fluorescent detection of o-nitrophenol by a cucurbit[8]uril-based supramolecular assembly in aqueous media. Analytica Chimica Acta, 1226, Article 340262. https://doi.org/10.1016/j.aca.2022.340262

The efficient and selective detection of isomers is an attractive but challenging area. In this study, a supramolecular fluorescent probe based on cucurbit[8]uril (Q[8]) and a pyrene-based derivative (G) was prepared, which effectively recognized and... Read More about Facile fluorescent detection of o-nitrophenol by a cucurbit[8]uril-based supramolecular assembly in aqueous media.

Detection of the Fungicide Dodine by means of Host-Guest Complexation between Cucubit[10]uril and Acridine Orange (2022)
Journal Article
Wang, C., Zou, H., Cong, H., Huang, Y., Tao, Z., Redshaw, C., & Xiao, X. (2022). Detection of the Fungicide Dodine by means of Host-Guest Complexation between Cucubit[10]uril and Acridine Orange. ChemistrySelect, 7(28), Article e202201584. https://doi.org/10.1002/slct.202201584

The interaction between acridine orange (AO) and cucurbit[10]uril, Q[10] affords the ternary complex 2AO@Q[10]. Subsequent addition of dodine (DD) displaces AO from the Q[10] cavity, and results in a fluorescent output. The effect of 20 different pes... Read More about Detection of the Fungicide Dodine by means of Host-Guest Complexation between Cucubit[10]uril and Acridine Orange.