Synthesis, characterization and reactions of [RhCl(CO){(Ph2P(CH2CH2O)mCH2CH2Ph2-P,P’)}]n (m = 3, 4, 5 n = 1, 2 …) metallacrown crown ethers

Smith, Dale; Cagle, Ethan C.; Gray, Gary M.

doi:10.1016/j.jorganchem.2018.09.004

Cited by 2 publications

(1 citation statement)

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“…Although the entire replacement of metallacrown ethers with -[M-N-O] n − (M: transition metal) or analogous repeating units in a cyclic arrangement has been extensively investigated by worldwide research groups [17], the development of partial replacement metallacrowns are hindered due to their limited stability in solutions [20]. A partial replacement of metallacrown ether can easily be obtained by the ring-closing coordination of metal ions with a ditopic ligand containing a polyether chain [21][22][23][24]. However, such metallacrown ethers bearing a bridging polynuclear complex, such as a polyoxometalate (POM) cluster [25,26] on the crown ring, has never been explored following this route.…”

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confidence: 99%

Polyoxometalatocrown ether: A new type of metallacrown ether based on polyoxometalate

Xiao,

Meng,

Wang

et al. 2024

Polyoxometalates

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Using chain-like polyethers consisting of two terminal -NH 2 groups and (TBA) 4 [α-Mo 8 O 26 ] as starting materials, two polyoxometalatocrown ethers were prepared by a cyclization reaction through the formation of Mo≡N triple bonds: (TBA) 2 [Mo 6 O 17 N(o-C 6 H 4 OCH 2 (CH 2 OCH 2 ) n CH 2 OC 6 H 4 -o)N] (compounds 1, n = 1; 2, n = 2).As confirmed by single-crystal X-ray diffraction and infrared (IR) studies, the polyoxometalatocrown ether 2 can capture primary ammonium cations in solid state.

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