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

Mollie a. Glenister, Josef w. a. Frese, Mark r. j. Elsegood, Angelos b. Canaj, Euan k. Brechin, Carl Redshaw

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

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.
Original languageEnglish
JournalDalton Transactions
Early online date27 Feb 2024
DOIs
Publication statusE-pub ahead of print - 27 Feb 2024

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