We report here a “nonspectator” behavior for an unsupported
We report investigations of the use of cucurbit[8]uril (CB[8]) macrocycles as an antidote to counteract the in vivo biological effects of phencyclidine. We investigate the binding of CB[8] and its derivative Me4CB[8] toward ten drugs of abuse (
- NSF-PAR ID:
- 10255760
- Publisher / Repository:
- Wiley Blackwell (John Wiley & Sons)
- Date Published:
- Journal Name:
- Chemistry – A European Journal
- Volume:
- 27
- Issue:
- 9
- ISSN:
- 0947-6539
- Page Range / eLocation ID:
- p. 3098-3105
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract L ‐function σ3‐P ligand (i.e. P{N[o ‐NMe‐C6H4]2},1a ) in complex with the cyclopentadienyliron dicarbonyl cation (Fp+). Treatment of1a ⋅Fp+with [(Me2N)3S][Me3SiF2] results in fluoride addition to theP ‐center, giving the isolable crystalline fluorometallophosphorane1aF ⋅Fp that allows a crystallographic assessment of the variance in the Fe−P bond as a function of P‐coordination number. The nonspectator reactivity of1a ⋅Fp+is rationalized on the basis of electronic structure arguments and by comparison to trigonal analogue (Me2N)3P⋅Fp+(i.e.1b ⋅Fp+), which is inert to fluoride addition. These observations establish a nonspectator L/X‐switching in (σ3‐P)–M complexes by reversible access to higher‐coordinate phosphorus ligand fragments. -
Abstract We report here a “nonspectator” behavior for an unsupported
L ‐function σ3‐P ligand (i.e. P{N[o ‐NMe‐C6H4]2},1a ) in complex with the cyclopentadienyliron dicarbonyl cation (Fp+). Treatment of1a ⋅Fp+with [(Me2N)3S][Me3SiF2] results in fluoride addition to theP ‐center, giving the isolable crystalline fluorometallophosphorane1aF ⋅Fp that allows a crystallographic assessment of the variance in the Fe−P bond as a function of P‐coordination number. The nonspectator reactivity of1a ⋅Fp+is rationalized on the basis of electronic structure arguments and by comparison to trigonal analogue (Me2N)3P⋅Fp+(i.e.1b ⋅Fp+), which is inert to fluoride addition. These observations establish a nonspectator L/X‐switching in (σ3‐P)–M complexes by reversible access to higher‐coordinate phosphorus ligand fragments. -
Abstract The “masked” terminal Zn sulfide, [K(2.2.2‐cryptand)][MeLZn(S)] (
2 ) (MeL={(2,6‐iPr2C6H3)NC(Me)}2CH), was isolated via reaction of [MeLZnSCPh3] (1 ) with 2.3 equivalents of KC8in THF, in the presence of 2.2.2‐cryptand, at −78 °C. Complex2 reacts readily with PhCCH and N2O to form [K(2.2.2‐cryptand)][MeLZn(SH)(CCPh)] (4 ) and [K(2.2.2‐cryptand)][MeLZn(SNNO)] (5 ), respectively, displaying both Brønsted and Lewis basicity. In addition, the electronic structure of2 was examined computationally and compared with the previously reported Ni congener, [K(2.2.2‐cryptand)][tBuLNi(S)] (tBuL={(2,6‐iPr2C6H3)NC(tBu)}2CH). -
Abstract The “masked” terminal Zn sulfide, [K(2.2.2‐cryptand)][MeLZn(S)] (
2 ) (MeL={(2,6‐iPr2C6H3)NC(Me)}2CH), was isolated via reaction of [MeLZnSCPh3] (1 ) with 2.3 equivalents of KC8in THF, in the presence of 2.2.2‐cryptand, at −78 °C. Complex2 reacts readily with PhCCH and N2O to form [K(2.2.2‐cryptand)][MeLZn(SH)(CCPh)] (4 ) and [K(2.2.2‐cryptand)][MeLZn(SNNO)] (5 ), respectively, displaying both Brønsted and Lewis basicity. In addition, the electronic structure of2 was examined computationally and compared with the previously reported Ni congener, [K(2.2.2‐cryptand)][tBuLNi(S)] (tBuL={(2,6‐iPr2C6H3)NC(tBu)}2CH). -
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