Light‐Triggered Guest Uptake and Release by a Photochromic Coordination Cage

Han, Muxin; Michel, Reent; He, Bice; Chen, Yu‐Sheng; Stalke, Dietmar; John, Michael; Clever, Guido H.

doi:10.1002/anie.201207373

Cited by 489 publications

(277 citation statements)

References 96 publications

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“…Several examples are known of the release of guests from containers following disassembly or irreversible decomposition of the host 10. Reversible stimulus-responsive uptake and release of guests is much rarer, with a handful of examples including the use of a redox swing,11 light-induced isomerisation,12 or a pH swing13,14 to control guest binding. We demonstrated recently how acidic or basic guest molecules with p K a values in the range 3–11, including some drug molecules, could undergo fully-reversible changes in binding constant of up to three orders of magnitude in a coordination cage host as the pH changed 14.…”

Section: Introductionmentioning

confidence: 99%

pH-Controlled selection between one of three guests from a mixture using a coordination cage host

et al. 2015

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Section: Introductionmentioning

confidence: 99%

pH-Controlled selection between one of three guests from a mixture using a coordination cage host

et al. 2015

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“…Photoswitchable ligand 22 forms a stable [M 2 L 4 ] 4+ cage upon addition of Pd 2+. [73] This structure is intriguing because it reversibly switches between open and closed conformations upon irradiation with UV (open⊙closed) or visible light (closed⊙open). The open cage has a 47-fold higher affinity for B 12 F 12 2− than the closed cage, likely due to increased rigidity preventing Pd 2+ to B 12 F 12 2− close contacts.…”

Section: Charged Speciesmentioning

confidence: 99%

Ion and Molecular Recognition Using Aryl–Ethynyl Scaffolding

Vonnegut

Tresca

Johnson

et al. 2015

Chemistry An Asian Journal

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The aryl–ethynyl linkage has been extensively employed in the construction of hosts for a variety of guests. Uses range from ion detection (e.g., of metal cations in the environment or industrial waste and of anions prevalent in nature), to molecular mimics for biological systems, and to applications targeting future safety issues (such as CO2 capture and indicators for the manufacture of chemical weapons). This Focus Review examines the utilization of the aryl–ethynyl linkage in engineering host molecules for a variety of different guests, and how the alkyne unit plays an integral part as both a rigid scaffolding section in host geometry design as well as a linker to allow conjugative communication between discrete π-electron systems.

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“…5 Using banana-shaped ligands, Clever and coworkers reported a series of Pd(II) coordination cages, tubular assemblies, and interlocked cages that allow light-controlled uptake and release of guest molecules. 6 The group of Yoshizawa described the syntheses of polyaromatic encircled molecular capsules using anthracene appended donor systems. These systems result in highly emissive host-guest complexes upon the encapsulation of fluorescent dyes.…”

Section: Introductionmentioning

confidence: 99%

Platinum(II)-Based Convex Trigonal-Prismatic Cages via Coordination-Driven Self-Assembly and C₆₀ Encapsulation

Zhang

Wang

et al. 2017

Inorg. Chem.

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The development of three dimensional supramolecular coordination complexes (SCCs) is of great interest from both fundamental and application points of view, because these materials are useful in molecular catalysis, separation and purification, sensing, etc. Herein, we describe the synthesis of two Klärner’s molecular clip-based tetrapyridyl donors, which possess a C-shaped structure as shown by the X-ray analysis, and subsequently use them to prepare four convex trigonal prismatic cages via coordination-driven self-assembly with two 180° diplatinum(II) acceptors. The cages are fully characterized by multinuclear NMR (31P and 1H) analysis, diffusion-ordered spectroscopy (DOSY), electrospray ionization time-of-flight mass spectrometry (ESI-TOF-MS) and UV/Vis absorption spectroscopy. Moreover, the incorporation of molecular clip-based ligands provides these cages with free cavities to encapsulate fullerene C60 via aromatic interactions, which may be useful for fullerene separation and purification. The studies described herein enlarge the scope of the Pt(II)-based directional bonding approach in the preparation of curved 3D metallacages and their host-guest chemistry.

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Light‐Triggered Guest Uptake and Release by a Photochromic Coordination Cage

Cited by 489 publications

References 96 publications

pH-Controlled selection between one of three guests from a mixture using a coordination cage host

pH-Controlled selection between one of three guests from a mixture using a coordination cage host

Ion and Molecular Recognition Using Aryl–Ethynyl Scaffolding

Platinum(II)-Based Convex Trigonal-Prismatic Cages via Coordination-Driven Self-Assembly and C₆₀ Encapsulation

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Light‐Triggered Guest Uptake and Release by a Photochromic Coordination Cage

Cited by 489 publications

References 96 publications

pH-Controlled selection between one of three guests from a mixture using a coordination cage host

pH-Controlled selection between one of three guests from a mixture using a coordination cage host

Ion and Molecular Recognition Using Aryl–Ethynyl Scaffolding

Platinum(II)-Based Convex Trigonal-Prismatic Cages via Coordination-Driven Self-Assembly and C60 Encapsulation

Contact Info

Product

Resources

About

Platinum(II)-Based Convex Trigonal-Prismatic Cages via Coordination-Driven Self-Assembly and C₆₀ Encapsulation