Reaction of Ph2C(X)(CO2H) (X = OH, NH2) with [VO(OR)3] (R = Et, nPr): Structure, magnetic susceptibility and ROP capability

Glenister, Mollie A.; Frese, Josef W.A.; Elsegood, Mark R.J.; Canaj, Angelos B.; Brechin, Euan K.; Redshaw, Carl

Abstract

Reaction of [VO(OR)3] (R = Et, nPr) with 2,2′-diphenylglycine afforded the alkoxide-bridged dimers {[VO(OR)(μ-OR)][Ph2C(NH2)(CO2)]}2, whereas use of benzilic acid, in the presence of alkali metals, afforded 16-membered metallocycles {V8(O)4M(OR)8[Ph2C(OH)(CO2)]12} (M = <1 Na, K). For the ring systems, magnetic susceptibility data is consistent with mixed-valence vanadium with an average oxidation state of 3.5. The dimer and ring systems are capable of the ring opening polymerisation (ROP) of ϵ-caprolactone under N2, air, or as melts affording mostly low to medium molecular weight cyclic and linear products.

Citation

Glenister, M. A., Frese, J. W., Elsegood, M. R., Canaj, A. B., Brechin, E. K., & Redshaw, C. (2024). Reaction of Ph2C(X)(CO2H) (X = OH, NH2) with [VO(OR)3] (R = Et, nPr): Structure, magnetic susceptibility and ROP capability. Dalton Transactions : an international journal of inorganic chemistry, 53(12), 5351-5355. https://doi.org/10.1039/d4dt00078a

• Journal Article Type: Article
• Acceptance Date: Feb 26, 2024
• Online Publication Date: Feb 27, 2024
• Publication Date: Mar 28, 2024
• Deposit Date: Mar 6, 2024
• Publicly Available Date: Mar 25, 2024
• Journal: Dalton Transactions
• Print ISSN: 1477-9226
• Electronic ISSN: 1477-9234
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 53
• Issue: 12
• Pages: 5351-5355
• DOI: https://doi.org/10.1039/d4dt00078a
• Keywords: Inorganic Chemistry
• Public URL: https://hull-repository.worktribe.com/output/4575163