H. Nmr and . Dmso-d6, 75 (s, 3H), 6.59 (s, 3H), 300 MHz): ? 6.79 (s, 3H), vol.6

. Hz, 3.14 (d, 3H, J = 13.5 Hz). 13 C{ 1 H} NMR (DMSO-d6, 75.5 MHz)

, Supporting Information. 1 H and 13 C spectra of compounds 6, 8, 9 and 3. 133 Cs NMR spectra

*. ,

P. Berthault, , pp.0-0003

D. M. Shaw, The Geochemistry of thallium, Geochimica et Cosmochimica Acta, vol.2, pp.118-154, 1962.

L. H. Ahrens, The Abundance of Thallium in the Earth's Crust, Science, vol.106, p.268, 1947.

S. R. Taylor, Abundance of the Chemical Elements in the Continental Crust: A new Table, Geochimica et Cosmochimica Acta, vol.28, pp.1273-1285, 1964.

V. Zitko, Toxicity and Pollution Potential of Thallium. The Science of the Total Environment, vol.4, pp.185-192, 1975.

A. Léonard and G. B. Gerber, Mutagenicity, Carcinogenicity, and Teranogenicity of Thallium Compounds. Mutation Res, vol.387, pp.47-53, 1997.

M. J. Maluszynski, Thallium in the Environment. Ochrona Srodowiska I Zasobow Naturalnych, vol.40, pp.31-38, 2009.

G. D. Zasukhina, I. M. Vasilyeva, N. I. Sdirkova, G. N. Krasovsky, L. Y. Vasyukovich et al., Mutagenic Effect of Thallium and Mercury Salts on Rodent Cells with Different Repair Activities. Mutation res, vol.124, pp.163-173, 1983.

J. Peter, A. L. Viraraghavan, and T. , Thallium : A Review of Public Health and Environmental Concerns, Environ. Int, vol.31, pp.493-501, 2005.

L. B. Clarke and L. L. Sloss, Trace Elements : Emissions from Coal Combustion and Gasification. London : IEA Coal research, issue.2, 1992.

A. Saha, Thallium Toxicity : A growing concern, Indian J. Occup. Environ. Med, vol.9, pp.53-56, 2005.

M. A. Lopez-anton, D. A. Spears, M. D. Somoano, and M. R. Tarazona, Thallium in Coal: Analysis and Environmental implications, Fuel, vol.105, pp.13-18, 2013.

Y. H. Chen, C. L. Wang, J. Liu, J. Wang, J. Y. Qi et al., Environmental Exposure and Flux of Thallium by Industrial Activities Utilizing Thallium-Bearing Pyrite, Sci. China Earth Sci, vol.56, pp.1502-1509, 2013.

B. Karbowska, Presence of Thallium in the Environment : Sources of Contaminations, Distribution and Monitoring Methods, Environ. Monit. Assess, vol.188, p.640, 2016.

F. S. Lisella, K. R. Long, and H. G. Scott, Toxicology of Rodenticides and their Relation to Human Health, Journal of environmental health, vol.33, pp.231-237, 1970.

N. G. Gratz, A Critical Review of Currently Used Single-Dose Rodenticides, Bull. Wld Hlth Org, vol.48, pp.469-477, 1973.

N. B. Vyas, Rodenticide Incidents of Exposure and Adverse Effects on Non-Raptor Birds, Science of the Total Environment, vol.609, pp.68-76, 2017.

J. Liu, X. Luo, Y. Sun, D. C. Tsang, J. Qi et al., Thallium Pollution in China and Removal Technologies for Waters: A review, Environment International, vol.126, pp.771-790, 2019.

J. Wang, Y. Zhou, X. Dong, M. Yin, D. C. Tsang et al., Temporal Sedimentary Record of Thallium Pollution in an Urban Lake : An Emerging Thallium Pollution Source from Copper Metallurgy, p.125172, 2020.

T. Lin and J. Nriagu, Thallium Speciation in the Great lakes, Environ. Sci. Technol, vol.33, pp.3394-3397, 1999.

L. Ghezzi, M. Orazio, M. Doveri, M. Lelli, R. Petrini et al., Groundwater and Potentially Toxic Elements in a Dismissed Mining Area : Thallium Contamination of Drinking Spring Water in the Apuan Alps, Journal of Geochemical Exploration, vol.197, pp.84-92, 2019.

V. Cheam, Thallium Contamination of Water in Canada, Water Qual. Res. J. Canada, vol.36, pp.851-877, 2001.

M. A. Gomez-gonzalez, J. Garcia-guinea, F. Laborda, and F. Garrido, Thallium Occurrence and Partitioning in Soils and Sediments Affected by Mining Activities in Madrid Province (Spain), Science of the Total Environment, vol.536, pp.268-278, 2015.

L. G. Twidwell and C. Williams-beam, Potential Technologies for Removing Thallium from Mine and Process Wasterwater : An Annotation of the Literature, Eur. J. Miner. Process. Environ. Prot, vol.2, pp.1-10, 2002.

S. Q. Memon, N. Memon, A. R. Solangi, and J. Memon, Sawdust: A Green and Economical Sorbent for Thallium Removal, Chemical Engineering Journal, vol.140, pp.235-240, 2008.

J. Peter, A. L. Viraraghavan, and T. , Removal of Thallium from Aqueous Solutions by Modified Aspergillus Niger Biomass, Bioresource Technology, vol.99, pp.618-625, 2008.

H. Li, X. Li, T. Xiao, Y. Chen, J. Long et al., Efficient Removal of Thallium(I) from Wastewater Using Flower-Like Manganese Dioxide Coated magnetic Pyrite Cinder, Chemical Engineering Journal, vol.353, pp.867-877, 2018.

H. Li, X. Li, Y. Chen, J. Long, G. Zhang et al., Removal and Recovery of Thallium from Aqueous Solutions via a Magnetitemediated Reversible Adsorption-Desorption Process, Journal of Cleaner, vol.199, pp.705-715, 2018.

H. Li, X. Li, J. Long, K. Li, Y. Chen et al., Oxidation and Removal of Thallium and Organics from Wastewater Using a Zero-Valent-Iron-Based Fenton-Like Technique, Journal of Cleaner Production, vol.221, pp.89-97, 2019.

X. Fu, L. Li, G. Yang, X. Xu, L. He et al., Removal of Trace Thallium from Industrial Wastewater by Fe 0 -Electrocoagulation, vol.12, pp.1-18, 2020.

Z. Zhao, Y. Xiong, X. Cheng, X. Hou, Y. Yang et al., Adsorptive Removal of Trace Thallium(I) from Wastewater : A Review and New Perspectives, Journal of Hazardous Materials, p.122378, 2020.

G. G. Talanova, E. D. Roper, N. M. Buie, M. G. Gorbunova, R. A. Bartsch et al., Novel Fluorogenic Calix[4]arene-bis(crown-6-Ether) for Selective Recognition of Thallium(I), Chem. Commun, pp.5673-5675, 2005.

T. Katsu, K. Ido, K. Takaishi, and H. Yokosu, Thallium(I)-Selective Membrane Electrodes Based on Calix[6]arene or Calix[5]arene Derivatives, Sensors and Actuators B, vol.87, pp.331-335, 2002.

H. Dong, H. Zheng, L. Lin, and B. Ye, Determination of Thallium and Cadmium on a Chemically Modified Electrode with Langmuir-Blodgett Film of p-Allylcalix[4]arene, Sensors and Actuators B, vol.115, pp.303-308, 2006.

S. Cheraghi, M. Ali-taher, and H. Fazelirad, Voltammetric Sensing of Thallium at a Carbon Paste Electrode Modified with a Crown Ether, Microchim. Acta, vol.180, pp.1157-1163, 2013.

R. Chester, M. Sohail, M. I. Ogden, M. Mocerino, E. Pretsch et al.,

, Calixarene-Based Ion-Selective Electrode for Thallium(I) Detection, Analytica Chimica Acta, vol.851, pp.78-86, 2014.

T. Brotin, D. Cavagnat, P. Berthault, R. Montserret, and T. Buffeteau, Water-Soluble Molecular Capsule for the Complexation of Cesium and Thallium Cations, J. Phys. Chem. B, vol.116, pp.10905-10914, 2012.
URL : https://hal.archives-ouvertes.fr/hal-01889595

T. Brotin, S. Goncalves, P. Berthault, D. Cavagnat, and T. Buffeteau, Influence of the Cavity Size of Water-Soluble Cryptophanes on Their Binding Properties for Cesium and Thallium Cations, J. Phys. Chem B, vol.117, pp.12593-12601, 2013.
URL : https://hal.archives-ouvertes.fr/hal-01889527

L. L. Chapellet, J. Dognon, M. Jean, N. Vanthuyne, P. Berthault et al., Experimental and Theoretical Study of the Complexation of Cesium and Thallium Cations by a Water-Soluble Cryptophane, vol.2, pp.5292-5300, 2017.
URL : https://hal.archives-ouvertes.fr/cea-01556375

S. E. Matthews, N. H. Rees, V. Felix, M. G. Drew, and P. D. Beer, Thallium ?-Cation Complexation by Calix?4?tubes : 205 Tl NMR and X-ray Evidence, Inorg. Chem, vol.42, pp.729-734, 2003.

E. D. Roper, V. S. Talanov, R. J. Butcher, and G. G. Talanova, Selective Recognition of

, Thallium(I) by 1,3-Alternate Calix?4?arene-bis(crown-6 Ether) : A New Talent of the Known Ionophore, Supramolecular Chemistry, vol.20, pp.217-219, 2008.

D. Cuc, S. Bouguet-bonnet, N. Morel-desrosiers, J. Morel, P. Mutzenhardt et al., Behavior of Cesium and Thallium Cations inside a Calixarene Cavity As Probed by Nuclear Spin Relaxation. Evidence of Cation?? Interactions in Water, J. Phys. Chem. B, vol.113, pp.10800-10807, 2009.
URL : https://hal.archives-ouvertes.fr/hal-00419687

E. Makrlik, J. Dybal, and P. Vanura, Interaction of the Thallium Cation with 1,3-alternate-25,27-bis(1-octyloxy)calix?4?arene-crown-6 : Experimental and Theoritical Study, Journal of Molecular Structure, vol.1042, pp.73-77, 2013.

H. Haddadi, N. Alizadeh, M. Shamsipur, Z. Asfari, V. Lippolis et al., Cation-? interaction in Complex Formation Between Tl + Ion and calix?4?crown-6 and Some calix?4?biscrown-6 Derivatives : Thallium-203 NMR, Proton NMR, and X-ray Evidence, Inorg. Chem, vol.15, pp.6874-6882, 2010.

R. T. Chester, D. Couton, R. Lobler, M. Mocerino, M. I. Ogden et al., The extraction of Thallium(I) and Silver(I) Ions with 1,3-Alternate Calix?4?arene Derivatives, J. Incl. Phenom. Macrocycl. Chem, vol.71, pp.471-477, 2011.

T. Brotin and J. Dutasta, Cryptophanes and their Complexes : Present and Future, Chem. Rev, vol.109, issue.1, pp.88-130, 2009.
URL : https://hal.archives-ouvertes.fr/hal-01116835

T. Brotin, E. Jeanneau, P. Berthault, E. Léonce, D. Pitrat et al., Synthesis of Cryptophane-B : Crystal Structure and Study of its Complex with Xenon, J. Org. Chem, vol.83, pp.14465-14471, 2018.
URL : https://hal.archives-ouvertes.fr/cea-01922217

E. Léonce, J. Dognon, D. Pitrat, J. Mulatier, T. Brotin et al., Accurate pH Sensing Using Hyperpolarized 129 Xe NMR Spectroscopy, Chem. Eur. J, vol.24, pp.6534-6537, 2018.

G. Huber, T. Brotin, L. Dubois, H. Desvaux, J. Dutasta et al., Water soluble cryptophanes showing unprecedented affinity for xenon: candidates as NMR-based biosensors, J. Am. Chem. Soc, vol.128, pp.6239-6246, 2006.
URL : https://hal.archives-ouvertes.fr/hal-01897101

O. Baydoun, N. De-rycke, E. Léonce, C. Boutin, P. Berthault et al., Synthesis of Cryptophane-223-Type Derivatives with Dual Functionalization, J. Org. Chem, vol.84, pp.9127-9137, 2019.
URL : https://hal.archives-ouvertes.fr/cea-02183121

T. Brotin, R. Montserret, A. Bouchet, D. Cavagnat, M. Linares et al., High Affinity of Water-Soluble Cryptophanes for Cesium Cation, J. Org. Chem, vol.77, pp.1198-1201, 2012.

L. L. Chapellet, J. R. Cochrane, E. Mari, C. Boutin, P. Berthault et al., Synthesis of Cryptophanes with Two Different Reaction Sites: Chemical Platforms for, Xenon Biosensing J. Org. Chem, vol.80, pp.6143-6151, 2015.
URL : https://hal.archives-ouvertes.fr/hal-01187801