26
|
Liu J, Luo T, Xue Y, Mao L, Stang PJ, Wang M. Hierarchical Self‐assembly of Discrete Metal–Organic Cages into Supramolecular Nanoparticles for Intracellular Protein Delivery. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202013904] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
|
27
|
Shao YG, He L, Mao QQ, Hong T, Ying XW, Zhang Z, Li S, Stang PJ. Efficient one-pot synthesis of [3]catenanes based on Pt( ii) metallacycles with a flexible building block. Org Chem Front 2021. [DOI: 10.1039/d1qo00910a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three [3]catenanes were fabricated in high efficiency through the self-assembly of a 90° platinum(ii) receptor, a flexible bis(4,4′-bipyridinium) donor and a crown ether (DB24C8 or DB30C10).
Collapse
|
28
|
Zhang Z, Hong T, Li S, Crawley MR, Cook TR, Huang XC, Pollock JB, Stang PJ. Multicomponent Coordination-Driven Self-Assembly of Fused C3v Polygons. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
29
|
Wang H, Zhou L, Zheng Y, Wang K, Song B, Yan X, Wojtas L, Wang X, Jiang X, Wang M, Sun Q, Xu B, Yang H, Sue AC, Chan Y, Sessler JL, Jiao Y, Stang PJ, Li X. Double‐Layered Supramolecular Prisms Self‐Assembled by Geometrically Non‐equivalent Tetratopic Subunits. Angew Chem Int Ed Engl 2020; 60:1298-1305. [DOI: 10.1002/anie.202010805] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Indexed: 12/14/2022]
|
30
|
Wang H, Zhou L, Zheng Y, Wang K, Song B, Yan X, Wojtas L, Wang X, Jiang X, Wang M, Sun Q, Xu B, Yang H, Sue AC, Chan Y, Sessler JL, Jiao Y, Stang PJ, Li X. Double‐Layered Supramolecular Prisms Self‐Assembled by Geometrically Non‐equivalent Tetratopic Subunits. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
31
|
Zhang M, Yao Y, Stang PJ, Zhao W. Divergent and Stereoselective Synthesis of Tetraarylethylenes from Vinylboronates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
|
32
|
Zhu H, Li Q, Shi B, Xing H, Sun Y, Lu S, Shangguan L, Li X, Huang F, Stang PJ. Formation of Planar Chiral Platinum Triangles via Pillar[5]arene for Circularly Polarized Luminescence. J Am Chem Soc 2020; 142:17340-17345. [DOI: 10.1021/jacs.0c09598] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
33
|
Tuo W, Sun Y, Lu S, Li X, Sun Y, Stang PJ. Pillar[5]arene-Containing Metallacycles and Host–Guest Interaction Caused Aggregation-Induced Emission Enhancement Platforms. J Am Chem Soc 2020; 142:16930-16934. [DOI: 10.1021/jacs.0c08697] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
34
|
Zhu H, Li Q, Shi B, Ge F, Liu Y, Mao Z, Zhu H, Wang S, Yu G, Huang F, Stang PJ. Dual-Emissive Platinum(II) Metallacage with a Sensitive Oxygen Response for Imaging of Hypoxia and Imaging-Guided Chemotherapy. Angew Chem Int Ed Engl 2020; 59:20208-20214. [PMID: 32710650 DOI: 10.1002/anie.202009442] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Indexed: 12/17/2022]
Abstract
Imaging of hypoxia in vivo helps with accurate cancer diagnosis and evaluation of therapeutic outcomes. A PtII metallacage with oxygen-responsive red phosphorescence and steady fluorescence for in vivo hypoxia imaging and chemotherapy is reported. The therapeutic agent and diagnostic probe were integrated into the metallacage through heteroligation-directed self-assembly. Nanoformulation by encapsulating the metallacage into nanoparticles greatly enhanced its stability the in physiological environment, rendering biomedical applications feasible. Apart from enhanced red phosphorescence upon hypoxia, the ratio between red and blue emissions, which only varies with intracellular oxygen level, provides a more precise standard for hypoxia imaging and detection. Moreover, in vivo explorations demonstrate the promising potential applications of the metallacage-loaded nanoparticles as theranostic agents for tumor hypoxia imaging and chemotherapy.
Collapse
|
35
|
Zhu H, Li Q, Shi B, Ge F, Liu Y, Mao Z, Zhu H, Wang S, Yu G, Huang F, Stang PJ. Dual‐Emissive Platinum(II) Metallacage with a Sensitive Oxygen Response for Imaging of Hypoxia and Imaging‐Guided Chemotherapy. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009442] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
36
|
Zhang M, Yao Y, Stang PJ, Zhao W. Divergent and Stereoselective Synthesis of Tetraarylethylenes from Vinylboronates. Angew Chem Int Ed Engl 2020; 59:20090-20098. [PMID: 32696545 DOI: 10.1002/anie.202008113] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2020] [Revised: 07/21/2020] [Indexed: 12/16/2022]
|
37
|
Chang X, Lin S, Wang G, Shang C, Wang Z, Liu K, Fang Y, Stang PJ. Self-Assembled Perylene Bisimide-Cored Trigonal Prism as an Electron-Deficient Host for C60 and C70 Driven by “Like Dissolves Like”. J Am Chem Soc 2020; 142:15950-15960. [DOI: 10.1021/jacs.0c06623] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
38
|
Li T, Zhang Q, Li D, Dong S, Zhao W, Stang PJ. Rational Design and Bulk Synthesis of Water-Containing Supramolecular Polymers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38700-38707. [PMID: 32803947 DOI: 10.1021/acsami.0c11546] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The utilization of structural water in chemical self-assembly has not only effectively eliminated the negative influences of solvents from solutions or gels but has also provided new insight into the fabrication of new materials in bulk. However, up to now, supramolecular polymerization triggered by structural water has been dominated more by serendipity than rational design. After carefully analyzing the chemical structures of artificial monomers and gaining a deep understanding of the water-triggered assembly process, we report herein the bulk formation of polymeric materials from water and low-molecular weight monomers by rational design instead of serendipity.
Collapse
|
39
|
Sun Y, Chen C, Liu J, Liu L, Tuo W, Zhu H, Lu S, Li X, Stang PJ. Self-Assembly of Porphyrin-Based Metallacages into Octahedra. J Am Chem Soc 2020; 142:17903-17907. [DOI: 10.1021/jacs.0c08058] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
40
|
Yang Z, Wang Y, Liu X, Vanderlinden RT, Ni R, Li X, Stang PJ. Hierarchical Self-Assembly of a Pyrene-Based Discrete Organoplatinum(II) Double-Metallacycle with Triflate Anions via Hydrogen Bonding and Its Tunable Fluorescence Emission. J Am Chem Soc 2020; 142:13689-13694. [DOI: 10.1021/jacs.0c06666] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
41
|
Sun Y, Chen C, Liu J, Stang PJ. Recent developments in the construction and applications of platinum-based metallacycles and metallacages via coordination. Chem Soc Rev 2020; 49:3889-3919. [PMID: 32412574 PMCID: PMC7846457 DOI: 10.1039/d0cs00038h] [Citation(s) in RCA: 202] [Impact Index Per Article: 50.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Coordination-driven suprastructures have attracted much interest due to their unique properties. Among these structures, platinum-based architectures have been broadly studied due to their facile preparation. The resultant two- or three-dimensional (2D or 3D) systems have many advantages over their precursors, such as improved emission tuning, sensitivity as sensors, and capture and release of guests, and they have been applied in biomedical diagnosis as well as in catalysis. Herein, we review the recent results related to platinum-based coordination-driven self-assembly (CDSA), and the text is organized to emphasizes both the synthesis of new metallacycles and metallacages and their various applications.
Collapse
|
42
|
Li D, Zhang Q, Zhao W, Dong S, Li T, Stang PJ. Thermo/Anion Dual-Responsive Supramolecular Organoplatinum–Crown Ether Complex. Org Lett 2020; 22:4289-4293. [DOI: 10.1021/acs.orglett.0c01333] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
43
|
Hong T, Zhang Z, Sun Y, Tao JJ, Tang JD, Xie C, Wang M, Chen F, Xie SS, Li S, Stang PJ. Chiral Metallacycles as Catalysts for Asymmetric Conjugate Addition of Styrylboronic Acids to α,β-Enones. J Am Chem Soc 2020; 142:10244-10249. [DOI: 10.1021/jacs.0c01563] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
44
|
Bhattacharyya S, Maity M, Chowdhury A, Saha ML, Panja SK, Stang PJ, Mukherjee PS. Coordination-Assisted Reversible Photoswitching of Spiropyran-Based Platinum Macrocycles. Inorg Chem 2020; 59:2083-2091. [PMID: 31971781 PMCID: PMC10615217 DOI: 10.1021/acs.inorgchem.9b03572] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Control over the stimuli-responsive behavior of smart molecular systems can influence their capability to execute complex functionalities. Herein, we report the development of a suite of spiropyran-based multi-stimuli-responsive self-assembled platinum(II) macrocycles (5-7), rendering coordination-assisted enhanced photochromism relative to the corresponding ligands. 5 showed shrinking and swelling during photoreversal, while 6 and 7 are fast and fatigue-free supramolecular photoswitches. 6 turns out to be a better fatigue-resistant photoswitch and can retain an intact photoswitching ability of up to 20 reversible cycles. The switching behavior of the macrocycles can also be precisely controlled by tuning the pH of the medium. Our present strategy for the construction of rapid stimuli-responsive supramolecular architectures via coordination-driven self-assembly represents an efficient route for the development of smart molecular switches.
Collapse
|
45
|
He YQ, Fudickar W, Tang JH, Wang H, Li X, Han J, Wang Z, Liu M, Zhong YW, Linker T, Stang PJ. Capture and Release of Singlet Oxygen in Coordination-Driven Self-Assembled Organoplatinum(II) Metallacycles. J Am Chem Soc 2020; 142:2601-2608. [PMID: 31939661 DOI: 10.1021/jacs.9b12693] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Singlet oxygen (1O2), as an important active reagent, has found wide applications in photodynamic therapy (PDT), synthetic chemistry, and materials science. Organic conjugated aromatics serving as hosts to capture and release singlet oxygen have been systematically investigated over the last decades. Herein, we present a [6 + 6] organoplatinum(II) metallacycle by using ∼180° dipyridylanthracene donor and ∼120° Pt(II) acceptor as the building blocks, which enables the capture and release of singlet oxygen with relatively high photooxygenation and thermolysis rate constants. The photooxygenation of the metallacycle to the corresponding endoperoxide was performed by sensitized irradiation, and the resulting endoperoxide is stable at room temperature and can be stored under ambient condition over months. Upon simple heating of the neat endoperoxide under inert atmosphere at 120 °C for 4 h, the resulting endoperoxide can be reconverted to the corresponding parent form and singlet oxygen. The photooxygenation and thermolysis products were characterized by NMR spectroscopy and electrospray ionization time-of-flight mass spectrometric analysis. Density functional theory calculations were conducted in order to reveal the frontier molecular orbital interactions and reactivity. This work provides a new material platform for singlet oxygen related promising applications.
Collapse
|
46
|
Jiang X, Zhou Z, Yang H, Shan C, Yu H, Wojtas L, Zhang M, Mao Z, Wang M, Stang PJ. Self-Assembly of Porphyrin-Containing Metalla-Assemblies and Cancer Photodynamic Therapy. Inorg Chem 2020; 59:7380-7388. [PMID: 31961145 DOI: 10.1021/acs.inorgchem.9b02775] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
In this report, we describe the synthesis of two porphyrin-containing Pt(II) supramolecular assemblies via coordination-driven self-assembly. X-ray crystallographic analysis on one assembly reveals that the metalla-assembly formation imposes large interchromophore distances, leading to a higher 1O2 generation efficiency, relative to the corresponding small molecular precursors. The metalla-assemblies were examined as photosensitizers for photodynamic therapy as the potential reduction of the unfavorable self-aggregation phenomenon. In vivo and in vitro investigations demonstrate that the metalla-assemblies exhibit enhanced anticancer activity with minimal dose requirement and side effects comparable to the small molecule precursors. Thus, our work demonstrates that self-assembly provides a promising methodology for enhancing the therapeutic effectiveness of anticancer agents.
Collapse
|
47
|
Chen Z, Tang JH, Chen W, Xu Y, Wang H, Zhang Z, Sepehrpour H, Cheng GJ, Li X, Wang P, Sun Y, Stang PJ. Temperature- and Mechanical-Force-Responsive Self-Assembled Rhomboidal Metallacycle. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00544] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
48
|
Zhang Q, Tang D, Zhang J, Ni R, Xu L, He T, Lin X, Li X, Qiu H, Yin S, Stang PJ. Self-Healing Heterometallic Supramolecular Polymers Constructed by Hierarchical Assembly of Triply Orthogonal Interactions with Tunable Photophysical Properties. J Am Chem Soc 2019; 141:17909-17917. [PMID: 31617714 DOI: 10.1021/jacs.9b09671] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Here, we present a method for the building of new bicyclic heterometallic cross-linked supramolecular polymers by hierarchical unification of three types of orthogonal noncovalent interactions, including platinum(II)-pyridine coordination-driven self-assembly, zinc-terpyridine complex, and host-guest interactions. The platinum-pyridine coordination provides the primary driving force to form discrete rhomboidal metallacycles. The assembly does not interfere with the zinc-terpyridine complexes, which link the discrete metallacycles into linear supramolecular polymers, and the conjugation length is extended upon the formation of the zinc-terpyridine complexes, which red-shifts the absorption and emission spectra. Finally, host-guest interactions via bis-ammonium salt binding to the benzo-21-crown-7 (B21C7) groups on the platinum acceptors afford the cross-linked supramolecular polymers. By continuous increase of the concentration of the supramolecular polymer to a relatively high level, supramolecular polymer gel is obtained, which exhibits self-healing properties and reversible gel-sol transitions stimulated by various external stimuli, including temperature, K+, and cyclen. Moreover, the photophysical properties of the supramolecular polymers could be effectively tuned by varying the substituents of the precursor ligands.
Collapse
|
49
|
Tang JH, Ni R, He YQ, Vanderlinden RT, Li Y, Shi B, Li ZY, Wang H, Li X, Sun Y, Zhong YW, Stang PJ. Metal-Organic Pt(II) Hexagonal-Prism Macrocycles and Their Photophysical Properties. Inorg Chem 2019; 58:13376-13381. [PMID: 31532649 PMCID: PMC6988834 DOI: 10.1021/acs.inorgchem.9b02267] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this work, we present the formation of two open-ended hexagonal-prism tubular macrocycles by the [6 + 12] self-assembly of the symmetric ∼120° organic ligand donor with ∼90° Pt(II) acceptor in a 1:2 ratio. The assembled structures were characterized by multinuclear NMR (1H NMR, 31P{1H} NMR, and 1H-1H COSY NMR), electrospray ionization mass spectrometry (ESI-TOF-MS), traveling wave ion mobility-mass spectrometry (TWIM-MS), and transmission electron microscopy. Molecular modeling was further conducted to get insight into their structured characteristics. We also examined their photophysical properties.
Collapse
|
50
|
Acharyya K, Bhattacharyya S, Sepehrpour H, Chakraborty S, Lu S, Shi B, Li X, Mukherjee PS, Stang PJ. Self-Assembled Fluorescent Pt(II) Metallacycles as Artificial Light-Harvesting Systems. J Am Chem Soc 2019; 141:14565-14569. [PMID: 31479260 DOI: 10.1021/jacs.9b08403] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Light-harvesting is one of the key steps in photosynthesis, but developing artificial light-harvesting systems (LHSs) with high energy transfer efficiencies has been a challenging task. Here we report fluorescent hexagonal Pt(II) metallacycles as a new platform to fabricate artificial LHSs. The metallacycles (4 and 5) are easily accessible by coordination-driven self-assembly of a triphenylamine-based ditopic ligand 1 with di-platinum acceptors 2 and 3, respectively. They possess good fluorescence properties both in solution and in the solid state. Notably, the metallacycles show aggregation-induced emission enhancement (AIEE) characteristics in a DMSO-H2O solvent system. In the presence of the fluorescent dye Eosin Y (ESY), the emission intensities of the metallacycles decrease but the emission intensity of ESY increases. The absorption spectrum of ESY and the emission spectra of the metallacycles show a considerable overlap, suggesting the possibility of energy transfer from the metallacycles to ESY, with an energy transfer efficiency as high as 65% in the 4a+ESY system.
Collapse
|