Evolving a Circular Plastics Economy

Mixed-metal calix[8]arene complexes: structure, and ring opening polymerisation studies (2022)
Journal Article
Xing, T., Derbyshire, M., Elsegood, M. R., & Redshaw, C. (2022). Mixed-metal calix[8]arene complexes: structure, and ring opening polymerisation studies. Chemical communications : Chem comm / the Royal Society of Chemistry, 58(53), 7427-7430. https://doi.org/10.1039/d2cc02236b

Reactions of différent combinations of group V alkoxides or tungsten oxyalkoxide salts with p-tert-butylcalix[8]areneH8 (L8H8) affords mixed-metal calix[8]arene systems. Intruiging molecular structures are formed and the systems are capable of the ri... Read More about Mixed-metal calix[8]arene complexes: structure, and ring opening polymerisation studies.

Pentamethylcyclopentadienyl molybdenum(V) complexes derived from iodoanilines: Synthesis, structure, and rop of ε-caprolactone (2021)
Journal Article
Xing, T., Elsegood, M. R. J., Dale, S. H., & Redshaw, C. (2021). Pentamethylcyclopentadienyl molybdenum(V) complexes derived from iodoanilines: Synthesis, structure, and rop of ε-caprolactone. Catalysts, 11(12), Article 1554. https://doi.org/10.3390/catal11121554

The reaction of [Mo(η-C5Me5 )Cl4 ] with the ortho-, meta-, or para-iodo-functionalized anilines 2-IC6H4NH2, 3-IC6H4NH2, 4-IC6H4NH2 yields imido or amine products of the type [Mo(ηC5Me5 )Cl2 (IC6H4N)] (2-I, 1, 3-I, 3, 4-I, 5) or [Mo(η-C5Me5 )Cl4 (IC6H... Read More about Pentamethylcyclopentadienyl molybdenum(V) complexes derived from iodoanilines: Synthesis, structure, and rop of ε-caprolactone.

Lithiated Calix[ n]arenes (n = 6 or 8): Synthesis, Structures, and Use in the Ring-Opening Polymerization of Cyclic Esters (2021)
Journal Article
Xing, T., Jiang, C., Elsegood, M. R. J., & Redshaw, C. (2021). Lithiated Calix[ n]arenes (n = 6 or 8): Synthesis, Structures, and Use in the Ring-Opening Polymerization of Cyclic Esters. Inorganic chemistry, https://doi.org/10.1021/acs.inorgchem.1c02192

A variety of lithiated calix[n]arenes, for which n = 6 or 8, have been isolated, structurally characterized, and evaluated as catalysts for the ring-opening polymerization (ROP) of the cyclic esters ϵ-caprolactone (ϵ-CL), δ-valerolactone (δ-VL), and... Read More about Lithiated Calix[ n]arenes (n = 6 or 8): Synthesis, Structures, and Use in the Ring-Opening Polymerization of Cyclic Esters.

Lead calix[n]arenes (n = 4, 6, 8): Structures and ring opening homo-/co-polymerization capability for cyclic esters (2021)
Journal Article
Xing, T., Prior, T. J., & Redshaw, C. (2021). Lead calix[n]arenes (n = 4, 6, 8): Structures and ring opening homo-/co-polymerization capability for cyclic esters. Dalton Transactions : an international journal of inorganic chemistry, 50(42), 15140-15152. https://doi.org/10.1039/d1dt02790e

Reaction of [LiPb(OiPr)3]2 (generated in situ) with either p-tert-butylcalix[4]areneH4 (L4H4) or p-tert-butylcalix[6]areneH6 (L6H6) resulted in the heterometallic lithium/lead complexes [Pb4Li2(L4)4H6(MeCN)3]·4.5MeCN (1·4.5MeCN) and [Pb8Li10Cl2(L6H2)... Read More about Lead calix[n]arenes (n = 4, 6, 8): Structures and ring opening homo-/co-polymerization capability for cyclic esters.

Metallocalix[n]arenes in catalysis: A 13-year update (2021)
Journal Article
Santoro, O., & Redshaw, C. (2021). Metallocalix[n]arenes in catalysis: A 13-year update. Coordination chemistry reviews, 448, Article 214173. https://doi.org/10.1016/j.ccr.2021.214173

Aside from their applications in the fields of ion extraction, gas storage and molecular sensors, calixarenes have been extensively employed as ligands for metal complexation. Moreover, metallocalix[n]arenes have shown interesting catalytic activity... Read More about Metallocalix[n]arenes in catalysis: A 13-year update.

Alkoxy-functionalized schiff-base ligation at aluminum and zinc: Synthesis, structures and rop capability (2021)
Journal Article
Zhang, X., Chen, K., Chicoma, M., Goins, K., Prior, T. J., Nile, T. A., & Redshaw, C. (2021). Alkoxy-functionalized schiff-base ligation at aluminum and zinc: Synthesis, structures and rop capability. Catalysts, 11(9), Article 1090. https://doi.org/10.3390/catal11091090

The Schiff-base compounds 2,4-di-tert-butyl-6-(((3,4,5-trimethoxyphenyl)imino)methyl)phenol (L1H), 2,4-di-tert-butyl-6-(((2,4,6-trimethoxyphenyl)imino)methyl)phenol (L2H), 2,4-di-tert-butyl-6-(((2,4-trimethoxyphenyl)imino)methyl)phenol) (L3H) derived... Read More about Alkoxy-functionalized schiff-base ligation at aluminum and zinc: Synthesis, structures and rop capability.

Scandium calix[n]arenes (n= 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies (2021)
Journal Article
Alshamrani, A. F., Santoro, O., Prior, T. J., Alamri, M. A., Stasiuk, G. J., Elsegood, M. R. J., & Redshaw, C. (2021). Scandium calix[n]arenes (n= 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies. Dalton Transactions : an international journal of inorganic chemistry, 50(24), 8302-8306. https://doi.org/10.1039/d1dt01330k

Interaction of [Sc(OR)3] (R = iPr or triflate) with p-tert-butylcalix[n]arenes, where n = 4, 6, or 8, affords a number of intriguing structural motifs, which are relatively non-toxic (cytotoxicity evaluated against cell lines HCT116 and HT-29) and a... Read More about Scandium calix[n]arenes (n= 4, 6, 8): structural, cytotoxicity and ring opening polymerization studies.

Coordination chemistry of [2 + 2] Schiff-base macrocycles derived from the dianilines [(2-NH2C6H4)2X] (X = CH2CH2, O): structural studies and ROP capability towards cyclic esters (2021)
Journal Article
Wang, K., Prior, T. J., Hughes, D. L., Arbaoui, A., & Redshaw, C. (2021). Coordination chemistry of [2 + 2] Schiff-base macrocycles derived from the dianilines [(2-NH2C6H4)2X] (X = CH2CH2, O): structural studies and ROP capability towards cyclic esters. Dalton Transactions : an international journal of inorganic chemistry, 50(23), 8057-8069. https://doi.org/10.1039/d1dt00711d

Reaction of the [2 + 2] Schiff-base macrocycles {[2-(OH)-5-(R)-C6H2-1,3-(CH)2][CH2CH2(2-C6H4N)2]}2(R = Me, L1H2;tBu, L2H2) with FeBr2afforded the complexes [FeBr(L1H2)]2[(FeBr3)2O]·2MeCN (1·2MeCN), [FeBr(L2H2)][X] (X = 0.5(FeBr3)2O,2·0.5MeCN, X = Br,... Read More about Coordination chemistry of [2 + 2] Schiff-base macrocycles derived from the dianilines [(2-NH2C6H4)2X] (X = CH2CH2, O): structural studies and ROP capability towards cyclic esters.

Coping with Change: (Re) Evolution of Waste Management in Local Authorities in England (2021)
Book Chapter
Deutz, P., & Kildunne, A. (2021). Coping with Change: (Re) Evolution of Waste Management in Local Authorities in England. In W. Guo, H. Hao Ngo, R. Y. Surampalli, & T. C. Zhang (Eds.), Sustainable Resource Management, Volume I: Technologies for Recovery and Reuse of Energy and Waste Materials, I (47-82). John Wiley and Sons. https://doi.org/10.1002/9783527825394.ch3

In the context of ambitions for a circular economy, there is need for a fundamental transition in resource recovery practices. However, whilst the sustainability transitions literature focuses on the transition toward a more sustainable future, polic... Read More about Coping with Change: (Re) Evolution of Waste Management in Local Authorities in England.

Comparative assessment of marine weathering of ROP-derived biopolymers against conventional plastics (2021)
Journal Article
Rodgers, K., Mayes, W. M., Santoro, O., Redshaw, C., Mccumskay, R., & Parsons, D. R. (2021). Comparative assessment of marine weathering of ROP-derived biopolymers against conventional plastics. Marine pollution bulletin, 167, Article 112272. https://doi.org/10.1016/j.marpolbul.2021.112272

Bio-based plastics were designed to replace single-use plastics and to cause less post-consumer environmental damage. This paper assesses the weathering of four bio-based polymers created by ring opening polymerization (ROP) promoted by a previously... Read More about Comparative assessment of marine weathering of ROP-derived biopolymers against conventional plastics.