Journal ArticleDOI
Tetrarhena-heterocycle from the palladium-catalyzed dimerization of Re2(CO)8(μ-SbPh2)(μ-H) exhibits an unusual host-guest behavior.
Richard D. Adams,William C. Pearl,Yuen Onn Wong,Qiang Zhang,Michael B. Hall,Justin R. Walensky +5 more
TLDR
The palladium atom that lies in the center of the heterocycle 7 was removed and the palladium removal was found to be partially reversible leading to an unusual example of host-guest behavior.Abstract:
The six-membered heavy atom heterocycles [Re2(CO)8(μ-SbPh2)(μ-H)]2, 5, and Pd[Re2(CO)8(μ-SbPh2)(μ-H)]2, 7, have been prepared by the palladium-catalyzed ring-opening cyclo-dimerization of the three-membered heterocycle Re2(CO)8(μ-SbPh2)(μ-H), 3. The palladium atom that lies in the center of the heterocycle 7 was removed to yield 5. The palladium removal was found to be partially reversible leading to an unusual example of host–guest behavior. A related dipalladium complex Pd2Re4(CO)16(μ4-SbPh)(μ3-SbPh2)(μ-Ph)(μ-H)2, 6, was also formed in these reactions of palladium with 3.read more
Citations
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Sb@Ni12@Sb20-/+ and Sb@Pd12@Sb20n Cluster Anions, Where n = +1, -1, -3, -4: Multi-Oxidation-State Clusters of Interpenetrating Platonic Solids.
Yi Wang,Melanie Moses-DeBusk,Lauren Stevens,Junkai Hu,Peter Y. Zavalij,Kit H. Bowen,Brett I. Dunlap,Evan R. Glaser,Bryan W. Eichhorn +8 more
TL;DR: The solid-state and gas-phase studies of the icosahedral Sb@M12@Sb20n-/n+ ions show that the clusters can exist in the -4, -3, -1, +1 (M = Pd) and +1, -2, -5, -6 oxidation states.
Journal ArticleDOI
Tetrapalladium Complex with Bridging Germylene Ligands. Structural Change of the Planar Pd4Ge3 Core
TL;DR: A complex with a planar hexagonal Pd(4)Ge(3) core, [Pd{Pd(dmpe)}(3)(μ(3)-GePh(2)), was synthesized and characterized by X-ray and NMR measurements as well as by DFT calculations.
Journal ArticleDOI
A Ketimide-Stabilized Palladium Nanocluster with a Hexagonal Aromatic Pd7 Core
TL;DR: The synthesis and characterization of the mixed-valent, ketimide-stabilized Pd7 nanosheet is reported, via reaction of PdCl2(PhCN)2 and Li(N═CtBu2), suggesting that 1 could be a useful precatalyst for a variety of cross-coupling reactions.
Journal ArticleDOI
Prospects for three-electron donor boronyl (BO) ligands and dioxodiborene (B2O2) ligands as bridging groups in binuclear iron carbonyl derivatives.
TL;DR: D density functional theory shows that three of the four lowest energy singlet Fe(2)(BO)(2)(CO)(7) structures have such a bridging η(2)-μ-BO group as well as a formal Fe-Fe single bond.
Journal ArticleDOI
Extreme metal carbonyl back bonding in cyclopentadienylthorium carbonyls generates bridging C2O2 ligands by carbonyl coupling.
Huidong Li,Huidong Li,Hao Feng,Hao Feng,Weiguo Sun,Weiguo Sun,R. Bruce King,Henry F. Schaefer +7 more
TL;DR: A QTAIM analysis of this formal Th-Th bond does not reveal a bond critical point thus suggesting a multicenter bonding model involving the bridging CO groups.
References
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Self-Assembly of Discrete Cyclic Nanostructures Mediated by Transition Metals
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The cucurbit[n]uril family
TL;DR: In 1981, the macrocyclic methylene-bridged glycoluril hexamer (CB[6]) was dubbed "cucurbituril" by Mock and co-workers because of its resemblance to the most prominent member of the cucurbitaceae family of plants--the pumpkin.
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Dendrimer-Encapsulated Metal Nanoparticles: Synthesis, Characterization, and Applications to Catalysis
TL;DR: Intradendrimer hydrogenation and carbon-carbon coupling reactions in water, organic solvents, biphasic fluorous/organic solvent, and supercritical CO2 are also described.
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A field guide to foldamers.
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Cucurbituril homologues and derivatives: new opportunities in supramolecular chemistry.
TL;DR: This Account is a compilation of recent literature covering the syntheses of the homologues and derivatives, and their supramolecular chemistry of cucurbituril, a synthetic receptor.