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- W1978658239 abstract "A synthetic route was developed for a novel bicyclic diphosphine 5 in which two structurally robust 1,8-naphthalenediyl groups clamp the P–P bond of the diphosphine to form a butterfly structure. The bicyclic framework was synthesized by a ring-opening dimerization of a strained four-membered phosphacycle of iPr2NP-peri-bridged naphthalene 8. A toluene solution of 8 was heated for 2 days in the presence of O2 and one equivalent of H2O to give a mixture of oxides of the target diphosphine 5, then the mixture of oxides was reduced with HSiCl3 to afford 5 in a moderate yield. The crystal structure of 5 confirmed that the P–P bond and the two naphthalene groups form a butterfly molecular structure, and the two lone pairs on the respective phosphorus centers are disposed in a synperiplanar configuration. These two phosphorus donor atoms bind two AuCl fragments to form a unique “U-shape” binuclear complex (μ-5)-[AuCl]2 in which the two Au(I) centers are separated by ca. 4.4 Å that indicates the negligible intramolecular Au–Au interaction. In the crystal, the two binuclear complexes interlocked with each other through multiple intermolecular Au–Au interactions between the two U-shape units." @default.
- W1978658239 created "2016-06-24" @default.
- W1978658239 creator A5014125225 @default.
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- W1978658239 date "2015-05-01" @default.
- W1978658239 modified "2023-10-17" @default.
- W1978658239 title "Synthesis of bicyclic diphosphine having a P−P bond doubly clamped with two 1,8-naphthalenediyl groups" @default.
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- W1978658239 doi "https://doi.org/10.1016/j.poly.2015.02.023" @default.
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