1
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Maitra PK, Bhattacharyya S, Hickey N, Mukherjee PS. Self-Assembly of a Water-Soluble Pd 16 Square Bicupola Architecture and Its Use in Aerobic Oxidation in Aqueous Medium. J Am Chem Soc 2024; 146:15301-15308. [PMID: 38785321 DOI: 10.1021/jacs.4c02956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
Designing supramolecular architectures with uncommon geometries has always been a key goal in the field of metal-ligand coordination-driven self-assembly. It acquires added significance if functional building units are employed in constructing such architectures for fruitful applications. In this report, we address both these aspects by developing a water-soluble Pd16L8 coordination cage 1 with an unusual square orthobicupola geometry, which was used for selective aerobic oxidation of aryl sulfides. Self-assembly of a benzothiadiazole-based tetra-pyridyl donor L with a ditopic cis-[(tmeda)Pd(NO3)2] acceptor [tmeda = N,N,N',N'-tetramethylethane-1,2-diamine] produced 1, and the geometry was determined by single-crystal X-ray diffraction study. Unlike the typically observed tri- or tetrafacial barrel, the present Pd16L8 coordination assembly features a distinctive structural topology and is a unique example of a water-soluble molecular architecture with a square orthobicupola geometry. Efficient and selective aerobic oxidation of sulfides to sulfoxides is an important challenge as conventional oxidation generally leads to the formation of sulfoxide along with toxic sulfone. Cage 1, designed with a ligand containing a benzothiadiazole moiety, demonstrates an ability to photogenerate reactive oxygen species (ROS) in water, thus enabling it to serve as a potential photocatalyst. The cage showed excellent catalytic efficiency for highly selective conversion of alkyl and aryl sulfides to their corresponding sulfoxides, therefore without the formation of toxic sulfones and other byproducts, under visible light in aqueous medium.
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Affiliation(s)
- Pranay Kumar Maitra
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Soumalya Bhattacharyya
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Neal Hickey
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste 34127, Italy
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
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2
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Dutton KG, Jones TJ, Emge TJ, Lipke MC. Cage Match: Comparing the Anion Binding Ability of Isostructural Versus Isofunctional Pairs of Metal-Organic Nanocages. Chemistry 2024; 30:e202303013. [PMID: 37907394 DOI: 10.1002/chem.202303013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
Affinities of six anions (mesylate, acetate, trifluoroacetate, p-toluenecarboxylate, p-toluenesulfonate, and perfluorooctanoate) for three related Pt2+ -linked porphyrin nanocages were measured to probe the influence of different noncovalent recognition motifs (e. g., hydrogen bonding, electrostatics, π bonding) on anion binding. Two new hosts of M6 L3 12+ (1b) and M4 L2 8+ (2) composition (M=(en)Pt2+ , L=(3-py)4 porphyrin) were prepared in a one-pot synthesis and allowed comparison of hosts that differ in structure while maintaining similar N-H hydrogen-bond donor ability. Comparisons of isostructural hosts that differ in hydrogen-bonding ability were made between 1b and a related M6 L3 12+ nanoprism (1a, M=(tmeda)Pt2+ ) that lacks N-H groups. Considerable variation in association constants (K1 =1.6×103 M-1 to 1.3×108 M-1 ) and binding mode (exo vs. endo) were found for different host-guest combinations. Strongest binding was seen between p-toluenecarboxylate and 1b, but surprisingly, association of this guest with 1a was only slightly weaker despite the absence of NH⋅⋅⋅O interactions. The high affinity between p-toluenecarboxylate and 1a could be turned off by protonation, and this behavior was used to toggle between the binding of this guest and the environmental pollutant perfluorooctanoate, which otherwise has a lower affinity for the host.
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Affiliation(s)
- Kaitlyn G Dutton
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Taro J Jones
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Thomas J Emge
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
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3
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Abdul Rinshad V, Sahoo J, Venkateswarulu M, Hickey N, De M, Sarathi Mukherjee P. Solvent Induced Conversion of a Self-Assembled Gyrobifastigium to a Barrel and Encapsulation of Zinc-Phthalocyanine within the Barrel for Enhanced Photodynamic Therapy. Angew Chem Int Ed Engl 2023; 62:e202218226. [PMID: 36715420 DOI: 10.1002/anie.202218226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/28/2023] [Accepted: 01/30/2023] [Indexed: 01/31/2023]
Abstract
A rare gyrobifastigium architecture (GB) was constructed by self-assembly of a tetradentate donor (L) with PdII acceptor in DMSO. The GB was converted to its isomeric tetragonal barrel (MB) upon treatment with water. The hydrophobic cavity of MB has been explored for the encapsulation of zinc-phthalocyanine (ZnPc), which is an excellent photosensitizer for photodynamic therapy (PDT). However, the poor water-solubility and aggregation tendency are the main reasons for the suboptimal PDT performance of free ZnPc in the aqueous medium. Effective solubilization of ZnPc in an aqueous medium was achieved by encapsulating it in the cavity of MB. The inclusion complex (ZnPc⊂MB) showed enhanced singlet oxygen generation in water. Higher cellular uptake and anticancer activity of the ZnPc⊂MB compared to free ZnPc on HeLa cells indicate that encapsulation of ZnPc in an aqueous host is a potential strategy for enhancement of its PDT activity in water.
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Affiliation(s)
- Valiyakath Abdul Rinshad
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Jagabandhu Sahoo
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Mangili Venkateswarulu
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Neal Hickey
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Trieste, 34127, Italy
| | - Mrinmoy De
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
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4
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Blackburn PT, Lipke MC. Effects of a triangular nanocage structure on the binding of neutral and anionic ligands to Co II and Zn II porphyrins. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2128786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- P. Thomas Blackburn
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
| | - Mark C. Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, Piscataway, NJ, USA
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5
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Lei Y, Huang JF, Li XA, Lv CY, Hou CP, Liu JM. Direct Z-scheme photochemical hybrid systems: Loading porphyrin-based metal-organic cages on graphitic-C3N4 to dramatically enhance photocatalytic hydrogen evolution. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(22)64109-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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McTernan CT, Davies JA, Nitschke JR. Beyond Platonic: How to Build Metal-Organic Polyhedra Capable of Binding Low-Symmetry, Information-Rich Molecular Cargoes. Chem Rev 2022; 122:10393-10437. [PMID: 35436092 PMCID: PMC9185692 DOI: 10.1021/acs.chemrev.1c00763] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
![]()
The
field of metallosupramolecular chemistry has advanced rapidly
in recent years. Much work in this area has focused on the formation
of hollow self-assembled metal-organic architectures and exploration
of the applications of their confined nanospaces. These discrete,
soluble structures incorporate metal ions as ‘glue’
to link organic ligands together into polyhedra.Most of the architectures
employed thus far have been highly symmetrical, as these have been
the easiest to prepare. Such high-symmetry structures contain pseudospherical
cavities, and so typically bind roughly spherical guests. Biomolecules
and high-value synthetic compounds are rarely isotropic, highly-symmetrical
species. To bind, sense, separate, and transform such substrates,
new, lower-symmetry, metal-organic cages are needed. Herein we summarize
recent approaches, which taken together form the first draft of a
handbook for the design of higher-complexity, lower-symmetry, self-assembled
metal-organic architectures.
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Affiliation(s)
- Charlie T McTernan
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jack A Davies
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Jonathan R Nitschke
- Yusuf Hamied Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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7
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Ueda M, Kimura M, Miyagawa S, Naito M, Takaya H, Tokunaga Y. Four- and two-armed hetero porphyrin dimers: their specific recognition and self-sorting behaviours. Org Biomol Chem 2022; 20:387-395. [PMID: 34908079 DOI: 10.1039/d1ob01694f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
In this study we self-assembled the four-armed porphyrin hetero dimer capsule Cap4, stabilized through amidinium-carboxylate salt bridges, in CH2Cl2 and CHCl3. The dimer capsule Cap4 was kinetically and thermodynamically more stable than the corresponding two-armed dimer Cap2. The number of arms strongly influenced their recognition behaviour; guests possessing small aromatic faces (e.g., 1,3,5-trinitrobenzene) preferred residing in the cavity of the two-armed capsule Cap2, rather than in Cap4, both thermodynamically and kinetically; in contrast, large aromatic guests (e.g., 9,10-dibromoanthracene) were encapsulated predominantly by Cap4 because of favourable entropic effects. The number of arms enabled self-sorting behaviour of the dimer formation; complexation studies using an equimolar mixture of the four porphyrin constituents of the two capsules revealed the quantitative formation of the corresponding dimers Cap2 and Cap4. Furthermore, we examined the specific molecular recognition of Cap2 and Cap4; NMR experiments of mixtures of Cap2 and Cap4 in the presence of favourable guests for Cap2 and Cap4 revealed that these guest molecules were encapsulated selectively by their preferred hosts.
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Affiliation(s)
- Masahiro Ueda
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan.
| | - Masaki Kimura
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan.
| | - Shinobu Miyagawa
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan.
| | - Masaya Naito
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan.
| | - Hikaru Takaya
- International Research Centre for Elements Science, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan.,Institute for Molecular Science, National Institute of Natural Science, Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan.
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8
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Blackburn PT, Mansoor IF, Dutton KG, Tyryshkin AM, Lipke MC. Accessing three oxidation states of cobalt in M 6L 3 nanoprisms with cobalt-porphyrin walls. Chem Commun (Camb) 2021; 57:11342-11345. [PMID: 34642705 DOI: 10.1039/d1cc04860k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nanocages with porphyrin walls are common, but studies of such structures hosting redox-active metals are rare. Pt2+-linked M6L3 nanoprisms with cobalt-porphyrin walls were prepared and their redox properties were evaluated electrochemically and chemically, leading to the first time that cobalt-porphyrin nanocages have been characterized in CoI, CoII, and CoIII states.
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Affiliation(s)
- P Thomas Blackburn
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Iram F Mansoor
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Kaitlyn G Dutton
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Alexei M Tyryshkin
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, USA.
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9
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Mansoor IF, Dutton KG, Rothschild DA, Remsing RC, Lipke MC. Uptake, Trapping, and Release of Organometallic Cations by Redox-Active Cationic Hosts. J Am Chem Soc 2021; 143:16993-17003. [PMID: 34596386 DOI: 10.1021/jacs.1c06121] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The host-guest chemistry of metal-organic nanocages is typically driven by thermodynamically favorable interactions with their guests such that uptake and release of guests can be controlled by switching this affinity on or off. Herein, we achieve this effect by reducing porphyrin-walled cationic nanoprisms 1a12+ and 1b12+ to zwitterionic states that rapidly uptake organometallic cations Cp*2Co+ and Cp2Co+, respectively. Cp*2Co+ binds strongly (Ka = 1.3 × 103 M-1) in the neutral state 1a0 of host 1a12+, which has its three porphyrin walls doubly reduced and its six (bipy)Pt2+ linkers singly reduced (bipy = 2,2'-bipyridine). The less-reduced states of the host 1a3+ and 1a9+ also bind Cp*2Co+, though with lower affinities. The smaller Cp2Co+ cation binds strongly (Ka = 1.7 × 103 M-1) in the 3e- reduced state 1b9+ of the (tmeda)Pt2+-linked host 1b12+ (tmeda = N,N,N',N'-tetramethylethylenediamine). Upon reoxidation of the hosts with Ag+, the guests become trapped to provide unprecedented metastable cation-in-cation complexes Cp*2Co+@1a12+ and Cp2Co+@1b12+ that persist for >1 month. Thus, dramatic kinetic effects reveal a way to confine the guests in thermodynamically unfavorable environments. Experimental and DFT studies indicate that PF6- anions kinetically stabilize Cp*2Co+@1a12+ through electrostatic interactions and by influencing conformational changes of the host that open and close its apertures. However, when Cp*2Co+@1a12+ was prepared using ferrocenium (Fc+) instead of Ag+ to reoxidize the host, dissociation was accelerated >200× even though neither Fc+ nor Fc have any observable affinity for 1a12+. This finding shows that metastable host-guest complexes can respond to subtler stimuli than those required to induce guest release from thermodynamically favorable complexes.
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Affiliation(s)
- Iram F Mansoor
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Kaitlyn G Dutton
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Daniel A Rothschild
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Richard C Remsing
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
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10
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Vidal A, Battistin F, Balducci G, Iengo E, Alessio E. A Flexible Synthetic Strategy for the Preparation of Heteroleptic Metallacycles of Porphyrins. Inorg Chem 2021; 60:11503-11513. [PMID: 34264053 PMCID: PMC8389808 DOI: 10.1021/acs.inorgchem.1c01511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a stepwise synthetic strategy for the preparation of the unprecedented heteroleptic 2+2 neutral metallacycle [{t,c,c-RuCl2(CO)2}2(4'cisDPyP)(3'cisDPyP)] (5), in which two different 5,10-meso-dipyridylporphyrins, 4'cisDPyP [i.e., 5,10-bis(4'-pyridyl)-15,20-diphenylporphyrin] and 3'cisDPyP [i.e., 5,10-bis(3'-pyridyl)-15,20-diphenylporphyrin], are joined through equal 90°-angular Ru(II) connectors. The synthesis of 5 was accomplished through the preparation of a reactive ditopic intermediate in which one of the two pyridylporphyrins is linked to two neutral ruthenium fragments, each having one residual readily available coordination site (a dmso-O). Thus, compound 5 was obtained under mild conditions through two complementary routes: either by treatment of [{t,c,c-RuCl2(CO)2(dmso-O)}2(4'cisDPyP)] (3) with 1 equiv of 3'cisDPyP or, alternatively, by treatment of [{t,c,c-RuCl2(CO)2(dmso-O)}2(3'cisDPyP)] (4) with 1 equiv of 4'cisDPyP. Heteroleptic metallacycle 5 was isolated in pure form in acceptable yield and fully characterized. Spectroscopic data and a molecular model show that 5 has an L-shaped geometry, with the two porphyrins almost orthogonal to one another. The modular approach that we established is highly flexible and opens the way to several possible exciting developments.
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Affiliation(s)
- Alessio Vidal
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Federica Battistin
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Gabriele Balducci
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Elisabetta Iengo
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Enzo Alessio
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
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Valencia-Loza SDJ, López-Olvera A, Martínez-Ahumada E, Martínez-Otero D, Ibarra IA, Jancik V, Percástegui EG. SO 2 Capture and Oxidation in a Pd6L8 Metal-Organic Cage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18658-18665. [PMID: 33871959 DOI: 10.1021/acsami.1c00408] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The facile and green preparation of novel materials that capture sulfur dioxide (SO2) with significant uptake at room temperature remains challenging, but it is crucial for public health and the environment. Herein, we explored for the first time the SO2 adsorption within microporous metal-organic cages using the palladium(II)-based [Pd6L8](NO3)36 tetragonal prism 1, assembled in water under mild conditions. Notably and despite the low BET surface area of 1 (111 m2 g-1), sulfur dioxide was found to be irreversibly and strongly adsorbed within the activated cage at 298 K (up to 6.07 mmol g-1). The measured values for the molar enthalpy of adsorption (ΔHads) coupled to the FTIR analyses imply a chemisorption process that involves the direct interaction of SO2 with Pd(II) sites and the subsequent oxidation of this toxic chemical by the action of the nitrate anions in 1. To the best of our knowledge, this is the first reported metal-organic cage that proves useful for SO2 adsorption. Metallosupramolecular adsorbents such as 1 could enable new detection applications and suggest that the integration of soft metal ions and self-assembly of molecular cages are a potential means for the easy tuning of SO2 adsorption capabilities and behavior.
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Affiliation(s)
- Sergio de Jesús Valencia-Loza
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
| | - Alfredo López-Olvera
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, México D.F. 04510, México
| | - Eva Martínez-Ahumada
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, México D.F. 04510, México
| | - Diego Martínez-Otero
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
| | - Ilich A Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, México D.F. 04510, México
| | - Vojtech Jancik
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
| | - Edmundo G Percástegui
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
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12
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O'Connor HM, Coletta M, Etcheverry-Berríos A, Nichol GS, Brechin EK, Lusby PJ. Kinetic selection of Pd 4L 2 metallocyclic and Pd 6L 3 trigonal prismatic assemblies. Chem Commun (Camb) 2020; 56:11799-11802. [PMID: 33021303 DOI: 10.1039/d0cc05311b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The self-assembly of Pd4L2 metallocylcic and Pd6L3 trigonal prismatic assemblies are described. The selection of one species over the other has been achieved by careful choice of ancilliary ligands, which switch the dynamics of the Pd-pyridine bonds such that a highly unusual and distorted smaller assembly can be kinetically trapped en route to the more energetically favourable larger species. Both assemblies provide promise as easy to access multicavity reaction vessels.
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Affiliation(s)
- Helen M O'Connor
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Marco Coletta
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Alvaro Etcheverry-Berríos
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Gary S Nichol
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Euan K Brechin
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
| | - Paul J Lusby
- EaStCHEM School of Chemistry, The University of Edinburgh, David Brewster Road, Edinburgh, EH9 3FJ, UK.
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13
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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]
Affiliation(s)
- Yan Sun
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, Jiangsu 225002, P. R. China
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Chongyi Chen
- Faculty of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, P. R. China
| | - Jianbo Liu
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Lizhe Liu
- Jiangsu Key Laboratory for Nanotechnology and Collaborative Innovation Center of Advanced Microstructures, National Laboratory of Solid State Microstructures, Nanjing University, Nanjing, Jiangsu 210093, P. R. China
| | - Wei Tuo
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Huangtianzhi Zhu
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
| | - Shuai Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, Henan 450001, P. R. China
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, P. R. China
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, Room 2020, Salt Lake City, Utah 84112, United States
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14
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Dutton KG, Rothschild DA, Pastore DB, Emge TJ, Lipke MC. The Influence of Redox-Active Linkers on the Stability and Physical Properties of a Highly Electroactive Porphyrin Nanoprism. Inorg Chem 2020; 59:12616-12624. [DOI: 10.1021/acs.inorgchem.0c01719] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Kaitlyn G. Dutton
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Daniel A. Rothschild
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Dakota B. Pastore
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Mark C. Lipke
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
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15
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Ueda M, Kimura M, Miyagawa S, Takaya H, Naito M, Tokunaga Y. A Five-layer π-Aromatic Structure Formed through Self-assembly of a Porphyrin Trimer and Two Aromatic Guests. Chem Asian J 2020; 15:2212-2217. [PMID: 32483880 DOI: 10.1002/asia.202000452] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/19/2020] [Indexed: 11/09/2022]
Abstract
In this study we synthesized two- and four-armed porphyrins - bearing two carboxyl and four 2-aminoquinolino functionalities, respectively, at their meso positions - as a complementary hydrogen bonding pair for the self-assembly of a D2 -symmetric porphyrin trimer host. Two units of the two-armed porphyrin and one unit of the four-armed porphyrin self-assembled quantitatively into the D2 -symmetric porphyrin trimer, stabilized through ammidinium-carboxylate salt bridge formation, in CH2 Cl2 and CHCl3 . The porphyrin trimer host gradually bound two units of 1,3,5-trinitrobenzene between the pair of porphyrin units, forming a five-layer aromatic structure. At temperatures below -40 °C, the rates of association and dissociation of the complexes were slow on the NMR spectroscopic time scale, allowing the 1 : 1 and 1 : 2 complexes of the trimer host and trinitrobenzene guest(s) to be detected independently when using less than 2 eq of trinitrobenzene. Vis titration experiments revealed the values of K1 (2.1±0.4×105 M-1 ) and K2 (2.2±0.06×104 M-1 ) in CHCl3 at room temperature.
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Affiliation(s)
- Masahiro Ueda
- Department of Materials Science and Engineering Faculty of Engineering, University of Fukui Bunkyo, Fukui, 910-8507, Japan
| | - Masaki Kimura
- Department of Materials Science and Engineering Faculty of Engineering, University of Fukui Bunkyo, Fukui, 910-8507, Japan
| | - Shinobu Miyagawa
- Department of Materials Science and Engineering Faculty of Engineering, University of Fukui Bunkyo, Fukui, 910-8507, Japan
| | - Hikaru Takaya
- International Research Center for Elements Science Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan
| | - Masaya Naito
- Department of Materials Science and Engineering Faculty of Engineering, University of Fukui Bunkyo, Fukui, 910-8507, Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering Faculty of Engineering, University of Fukui Bunkyo, Fukui, 910-8507, Japan
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16
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Coordination-driven assemblies based on meso-substituted porphyrins: Metal-organic cages and a new type of meso-metallaporphyrin macrocycles. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213165] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Wang H, Liu CH, Wang K, Wang M, Yu H, Kandapal S, Brzozowski R, Xu B, Wang M, Lu S, Hao XQ, Eswara P, Nieh MP, Cai J, Li X. Assembling Pentatopic Terpyridine Ligands with Three Types of Coordination Moieties into a Giant Supramolecular Hexagonal Prism: Synthesis, Self-Assembly, Characterization, and Antimicrobial Study. J Am Chem Soc 2019; 141:16108-16116. [PMID: 31509694 DOI: 10.1021/jacs.9b08484] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Three dimensional (3D) supramolecules with giant cavities are attractive due to their wide range of applications. Herein, we used pentatopic terpyridine ligands with three types of coordination moieties to assemble two giant supramolecular hexagonal prisms with a molecular weight up to 42 608 and 43 569 Da, respectively. Within the prisms, two double-rimmed Kandinsky Circles serve as the base surfaces as well as the templates for assisting the self-sorting during the self-assembly. Additionally, hierarchical self-assembly of these supramolecular prisms into tubular-like nanostructures was fully studied by scanning tunneling microscopy (STM) and small-angle X-ray scattering (SAXS). Finally, these supramolecular prisms show good antimicrobial activities against Gram-positive pathogen methicillin-resistant Staphylococcus aureus (MRSA) and Bacillus subtilis (B. subtilis).
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Affiliation(s)
- Heng Wang
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Chung-Hao Liu
- Polymer Program, Institute Materials Science, Department of Chemical & Biomolecular Engineering , University of Connecticut , Storrs , Connecticut 06269 , United States
| | - Kun Wang
- Department of Mechanical Engineering , University of Michigan , Ann Arbor , Michigan 48109 , United States.,Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center , University of Georgia , Athens , Georgia 30602 , United States
| | - Minghui Wang
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Hao Yu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , Jilin 130012 , China
| | - Sneha Kandapal
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center , University of Georgia , Athens , Georgia 30602 , United States
| | - Robert Brzozowski
- Department of Cell Biology, Microbiology and Molecular Biology , University of South Florida , Tampa , Florida 33620 , United States
| | - Bingqian Xu
- Single Molecule Study Laboratory, College of Engineering and Nanoscale Science and Engineering Center , University of Georgia , Athens , Georgia 30602 , United States
| | - Ming Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry , Jilin University , Changchun , Jilin 130012 , China
| | - Shuai Lu
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States.,College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou , Henan 450001 , China
| | - Xin-Qi Hao
- College of Chemistry and Molecular Engineering , Zhengzhou University , Zhengzhou , Henan 450001 , China
| | - Prahathees Eswara
- Department of Cell Biology, Microbiology and Molecular Biology , University of South Florida , Tampa , Florida 33620 , United States
| | - Mu-Ping Nieh
- Polymer Program, Institute Materials Science, Department of Chemical & Biomolecular Engineering , University of Connecticut , Storrs , Connecticut 06269 , United States
| | - Jianfeng Cai
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
| | - Xiaopeng Li
- Department of Chemistry , University of South Florida , Tampa , Florida 33620 , United States
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18
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Lavendomme R, Ronson TK, Nitschke JR. Metal and Organic Templates Together Control the Size of Covalent Macrocycles and Cages. J Am Chem Soc 2019; 141:12147-12158. [PMID: 31287669 PMCID: PMC6756589 DOI: 10.1021/jacs.9b06182] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
![]()
Covalent
macrocycles and three-dimensional cages were prepared by the self-assembly
of di- or tritopic anilines and 2,6-diformylpyridine subcomponents
around palladium(II) templates. The resulting 2,6-bis(imino)pyridyl-PdII motif contains a tridentate ligand, leaving a free coordination
site on the PdII centers, which points inward. The binding
of ligands to the free coordination sites in these assemblies was
found to alter the product stability, and multitopic ligands could
be used to control product size. Multitopic ligands also bridged metallomacrocycles
to form higher-order supramolecular assemblies, which were characterized
via NMR spectroscopy, mass spectrometry, and X-ray crystallography.
An efficient method was developed to reduce the imine bonds to secondary
amines, leading to fully organic covalent macrocycles and cages that
were inaccessible through other means.
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Affiliation(s)
- Roy Lavendomme
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Tanya K Ronson
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
| | - Jonathan R Nitschke
- Department of Chemistry , University of Cambridge , Lensfield Road , Cambridge CB2 1EW , United Kingdom
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19
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Cages vs. Prisms: Controlling the Formation of Metallosupramolecular Architectures with Ligand Side-Chains. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900483] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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20
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Vidal A, Battistin F, Balducci G, Demitri N, Iengo E, Alessio E. Rare Example of Stereoisomeric 2 + 2 Metallacycles of Porphyrins Featuring Chiral-at-Metal Octahedral Ruthenium Corners. Inorg Chem 2019; 58:7357-7367. [PMID: 31090413 DOI: 10.1021/acs.inorgchem.9b00487] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In this paper, we describe three new stereoisomers of the already known 2 + 2 metallacycle of porphyrins [ trans, cis, cis-RuCl2(CO)2(4' cisDPyP)]2 (2, 4' cisDPyP = 5,10-bis(4'-pyridyl)-15,20-diphenylporphyrin), namely [{ trans,cis,cis-RuCl2(CO)2}(4' cisDPyP)2{ cis,cis,cis-RuCl2(CO)2}] (14) and [ cis,cis,cis-RuCl2(CO)2(4' cisDPyP)]2 (15), in which the chiral { cis,cis,cis-RuCl2(CO)2} fragment has either a C or A handedness. The least abundant 15 exists as a mixture of two stereoisomers defined as alternate (15alt, both porphyrins are trans to a Cl and a CO) and pairwise (15pw, one porphyrin is trans to two chlorides and the other to two carbonyls), each one as a statistical mixture of meso ( AC) and racemic ( AA and CC) diastereomers. Remarkably, both 14 and 15 are-to the best of our knowledge-unprecedented examples of 2D metallacycles with octahedral chiral-at-metal connectors, and 14 is the first example of a 2 + 2 molecular square with stereoisomeric Ru(II) corners. Whereas 2 is selectively obtained by treatment of trans,cis,cis-RuCl2(CO)2(dmso-O)2 (1) with 4' cisDPyP, 14 and 15 were obtained, together with 2 (major product), using stereoisomers of 1, either cis,cis,trans-RuCl2(CO)2(dmso-S)2 (5) or cis,cis,cis-RuCl2(CO)2(dmso)2 (6), as precursors. From a general point of view, this work demonstrates that-even for the smallest 2 + 2 metallacycle and using a symmetric organic linker-several stereoisomers can be generated when using octahedral metal connectors of the type {MA2B2} that are not stereochemically rigid. As a proof-of-concept, it also opens the way to new-even though challenging-opportunities: unprecedented and yet unexplored chiral metallosupramolecular assemblies can be obtained and eventually exploited (e.g., for supramolecular catalysis) by using stereogenic octahedral metal connectors amenable to become chiral centers.
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Affiliation(s)
- Alessio Vidal
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | - Federica Battistin
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | - Gabriele Balducci
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | - Nicola Demitri
- Elettra - Synchrotron Light Source , S.S. 14 Km 163.5, Area Science Park , 34149 Basovizza, Trieste , Italy
| | - Elisabetta Iengo
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | - Enzo Alessio
- Department of Chemical and Pharmaceutical Sciences , University of Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
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21
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Colomban C, Fuertes-Espinosa C, Goeb S, Sallé M, Costas M, Blancafort L, Ribas X. Self-Assembled Cofacial Zinc-Porphyrin Supramolecular Nanocapsules as Tuneable 1 O 2 Photosensitizers. Chemistry 2018; 24:4371-4381. [PMID: 29315876 DOI: 10.1002/chem.201705531] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Indexed: 12/11/2022]
Abstract
We demonstrate the benefits of using cofacial Zn-porphyrins as structural synthons in coordination-driven self-assembled prisms to produce cage-like singlet oxygen (1 O2 ) photosensitizers with tunable properties. In particular, we describe the photosensitizing and emission properties of palladium- and copper-based supramolecular capsules, and demonstrate that the nature of the bridging metal nodes in these discrete self-assembled prisms strongly influences 1 O2 generation at the Zn-porphyrin centers. The PdII -based prism is a particularly robust photosensitizer, whereas the CuII self-assembled prism is a dormant photosensitizer that could be switched to a ON state upon disassembly of the suprastructure. Furthermore, the well-defined cavity within the prisms allowed encapsulation of pyridine-based ligands and fullerene derivatives, which led to a remarkable guest tuning of the 1 O2 production.
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Affiliation(s)
- Cédric Colomban
- Institut de Química Computatcional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E17003, Catalonia, Spain
| | - Carles Fuertes-Espinosa
- Institut de Química Computatcional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E17003, Catalonia, Spain
| | - Sébastien Goeb
- Laboratoire MOLTECH-Anjou, Université d'Angers, CNRS UMR 6200, 2 bd Lavoisier, 49045, Angers Cedex, France
| | - Marc Sallé
- Laboratoire MOLTECH-Anjou, Université d'Angers, CNRS UMR 6200, 2 bd Lavoisier, 49045, Angers Cedex, France
| | - Miquel Costas
- Institut de Química Computatcional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E17003, Catalonia, Spain
| | - Lluís Blancafort
- Institut de Química Computatcional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E17003, Catalonia, Spain
| | - Xavi Ribas
- Institut de Química Computatcional i Catàlisi (IQCC), Departament de Química, Universitat de Girona, Campus Montilivi, Girona, E17003, Catalonia, Spain
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22
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Singh N, Singh J, Kim D, Kim DH, Kim EH, Lah MS, Chi KW. Coordination-Driven Self-Assembly of Heterotrimetallic Barrel and Bimetallic Cages Using a Cobalt Sandwich-Based Tetratopic Donor. Inorg Chem 2018; 57:3521-3528. [DOI: 10.1021/acs.inorgchem.7b02653] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Nem Singh
- Department of Chemistry, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Jatinder Singh
- Department of Chemistry, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Dongwook Kim
- Department of Chemistry, Ulsan National Institute of Science & Technology, Ulsan 44919, Republic of Korea
| | - Dong Hwan Kim
- Department of Chemistry, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Eun-Hee Kim
- Republic of Korea Protein Structure Group, Korea Basic Science Institute, Ochang, Chungbuk 28119, Republic of Korea
| | - Myoung Soo Lah
- Department of Chemistry, Ulsan National Institute of Science & Technology, Ulsan 44919, Republic of Korea
| | - Ki-Whan Chi
- Department of Chemistry, University of Ulsan, Ulsan 44610, Republic of Korea
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23
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Colomban C, Martin-Diaconescu V, Parella T, Goeb S, García-Simón C, Lloret-Fillol J, Costas M, Ribas X. Design of Zn-, Cu-, and Fe-Coordination Complexes Confined in a Self-Assembled Nanocage. Inorg Chem 2018; 57:3529-3539. [PMID: 29293325 DOI: 10.1021/acs.inorgchem.7b02852] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The encapsulation of coordination complexes in a tetragonal prismatic nanocage (1·(BArF)8) built from Zn-porphyrin and macrocyclic Pd-clip-based synthons is described. The functional duality of the guest ligand L1 allows for its encapsulation inside the cage 1·(BArF)8, along with the simultaneous coordination of ZnII, CuII, or FeIII metal ions. Remarkably, the coordination chemistry inside the host-guest adduct L1⊂1·(BArF)8 occurs in both solution solution and solid state. The resulting confined metallocomplexes have been characterized by means of UV-vis, ESI-HRMS, NMR, and EPR techniques. Furthermore, the emission of the Zn-porphyrin fluorophores of 1·(BArF)8 is strongly quenched by the encapsulation of paramagnetic complexes, representing a remarkable example of guest-dependent tuning of the host fluorescence.
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Affiliation(s)
- Cédric Colomban
- Institut de Química Computacional i Catàlisi , Universitat de Girona, Campus Montilivi , 17003 Girona , Catalonia , Spain
| | - Vlad Martin-Diaconescu
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Avinguda Paisos Catalans 16 , 43007 Tarragona , Catalonia , Spain
| | - Teodor Parella
- Servei de RMN, Facultat de Ciències , Universitat Autònoma de Barcelona, Campus UAB , E-08193 Bellaterra , Catalonia , Spain
| | - Sébastien Goeb
- Université d'Angers, CNRS UMR 6200 , Laboratoire MOLTECH-Anjou , 2 bd Lavoisier , 49045 Angers Cedex , France
| | - Cristina García-Simón
- Institut de Química Computacional i Catàlisi , Universitat de Girona, Campus Montilivi , 17003 Girona , Catalonia , Spain
| | - Julio Lloret-Fillol
- Institute of Chemical Research of Catalonia (ICIQ) , The Barcelona Institute of Science and Technology , Avinguda Paisos Catalans 16 , 43007 Tarragona , Catalonia , Spain
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi , Universitat de Girona, Campus Montilivi , 17003 Girona , Catalonia , Spain
| | - Xavi Ribas
- Institut de Química Computacional i Catàlisi , Universitat de Girona, Campus Montilivi , 17003 Girona , Catalonia , Spain
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24
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Cecot G, Marmier M, Geremia S, De Zorzi R, Vologzhanina AV, Pattison P, Solari E, Fadaei Tirani F, Scopelliti R, Severin K. The Intricate Structural Chemistry of M II2nL n-Type Assemblies. J Am Chem Soc 2017; 139:8371-8381. [PMID: 28603972 DOI: 10.1021/jacs.7b04861] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The reaction of cis-blocked, square-planar MII complexes with tetratopic N-donor ligands is known to give metallasupramolecular assemblies of the formula M2nLn. These assemblies typically adopt barrel-like structures, with the ligands paneling the sides of the barrels. However, alternative structures are possible, as demonstrated by the recent discovery of a Pt8L4 cage with unusual gyrobifastigium-like geometry. To date, the factors that govern the assembly of MII2nLn complexes are not well understood. Herein, we provide a geometric analysis of M2nLn complexes, and we discuss how size and geometry of the ligand is expected to influence the self-assembly process. The theoretical analysis is complemented by experimental studies using different cis-blocked PtII complexes and metalloligands with four divergent pyridyl groups. Mononuclear metalloligands gave mainly assemblies of type Pt8L4, which adopt barrel- or gyrobifastigium-like structures. Larger assemblies can also form, as evidenced by the crystallographic characterization of a Pt10L5 complex and a Pt16L8 complex. The former adopts a pentagonal barrel structure, whereas the latter displays a barrel structure with a distorted square orthobicupola geometry. The Pt16L8 complex has a molecular weight of more than 23 kDa and a diameter of 4.5 nm, making it the largest, structurally characterized M2nLn complex described to date. A dinuclear metalloligand was employed for the targeted synthesis of pentagonal Pt10L5 barrels, which are formed in nearly quantitative yields.
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Affiliation(s)
| | | | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste , 34127 Trieste, Italy
| | - Rita De Zorzi
- Centro di Eccellenza in Biocristallografia, Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste , 34127 Trieste, Italy
| | - Anna V Vologzhanina
- Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences , 119991 Moscow, Russia
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25
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Oldacre AN, Friedman AE, Cook TR. A Self-Assembled Cofacial Cobalt Porphyrin Prism for Oxygen Reduction Catalysis. J Am Chem Soc 2017; 139:1424-1427. [DOI: 10.1021/jacs.6b12404] [Citation(s) in RCA: 121] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Amanda N. Oldacre
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Alan E. Friedman
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
| | - Timothy R. Cook
- Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, New York 14260, United States
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26
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Dasgupta S, Mukherjee PS. Carboxylatopillar[n]arenes: a versatile class of water soluble synthetic receptors. Org Biomol Chem 2017; 15:762-772. [DOI: 10.1039/c6ob02214f] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Carboxylatopillar[n]arenes (CP[n]As, n = 5, 6, 7, 9, 10) constitute a family of water soluble synthetic receptors. These receptors are excellent hosts for a wide range of cationic organic molecules and have shown promising application in the fields of stimuli-responsive supramolecular assemblies, targeted drug delivery vehicles and sensors. Analogous metal-coordinated prismatic structures have shown excellent affinities for analytes.
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Affiliation(s)
- Suvankar Dasgupta
- Department of Chemistry
- National Institute of Technology Patna
- Patna-800005
- India
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27
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Gaikwad S, Lal Saha M, Samanta D, Schmittel M. Five-component trigonal nanoprism with six dynamic corners. Chem Commun (Camb) 2017; 53:8034-8037. [DOI: 10.1039/c7cc04078d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The metallo-supramolecular trigonal prism P is based on five different components and three unlike dynamic coordination motifs: the heteroleptic phenanthroline–terpyridine complex [Zn(1)(4)]2+ (HETTAP), the heteroleptic phenanthroline–pyridine complex [Cu(2)(5A)]+ (HETPYP-I), and the pyridine → zinc(ii)–porphyrin interaction.
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Affiliation(s)
- Sudhakar Gaikwad
- Center of Micro and Nanochemistry and Engineering
- Organische Chemie I
- Universität Siegen
- D-57068 Siegen
- Germany
| | - Manik Lal Saha
- Center of Micro and Nanochemistry and Engineering
- Organische Chemie I
- Universität Siegen
- D-57068 Siegen
- Germany
| | - Debabrata Samanta
- Center of Micro and Nanochemistry and Engineering
- Organische Chemie I
- Universität Siegen
- D-57068 Siegen
- Germany
| | - Michael Schmittel
- Center of Micro and Nanochemistry and Engineering
- Organische Chemie I
- Universität Siegen
- D-57068 Siegen
- Germany
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28
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Cecot G, Alameddine B, Prior S, Zorzi RD, Geremia S, Scopelliti R, Fadaei FT, Solari E, Severin K. Large heterometallic coordination cages with gyrobifastigium-like geometry. Chem Commun (Camb) 2016; 52:11243-11246. [DOI: 10.1039/c6cc06066h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Large coordination cages with unusual gyrobifastigium-like geometry were obtained by combining cis-blocked PtII or PdII complexes with clathrochelate-based metalloligands.
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Affiliation(s)
- Giacomo Cecot
- Institut des Sciences et Ingénierie Chimiques
- École Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Bassam Alameddine
- Department of Mathematics and Natural Sciences
- Gulf University of Science & Technology (GUST)
- Kuwait
| | - Stéphanie Prior
- Institut des Sciences et Ingénierie Chimiques
- École Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Rita De Zorzi
- Centro di Eccellenza in Biocristallografia
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- Trieste
- Italy
| | - Silvano Geremia
- Centro di Eccellenza in Biocristallografia
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Trieste
- Trieste
- Italy
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques
- École Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Farzaneh T. Fadaei
- Institut des Sciences et Ingénierie Chimiques
- École Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Euro Solari
- Institut des Sciences et Ingénierie Chimiques
- École Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques
- École Polytechnique Fédérale de Lausanne (EPFL)
- 1015 Lausanne
- Switzerland
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29
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Ballester P, Claudel M, Durot S, Kocher L, Schoepff L, Heitz V. A Porphyrin Coordination Cage Assembled from Four Silver(I) Triazolyl-Pyridine Complexes. Chemistry 2015; 21:15339-48. [PMID: 26338089 DOI: 10.1002/chem.201502152] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Indexed: 11/09/2022]
Abstract
The synthesis of a zinc(II) porphyrin 1 with four appended triazolyl-pyridine chelates is reported. Complexation of the porphyrin peripheral ligands with Ag(I) ions in a 1:2 binding stoichiometry afforded quantitatively the coordination cage [Ag4 (1)2 ](4+) . The assembly and disassembly processes of the cage were investigated in solution using UV/Vis spectroscopy. The mathematical analysis of the data obtained in the UV/Vis titration of 1 with Ag(I) confirmed the assembly in CH2 Cl2 /MeOH (90:10) solution of a species having a 1:2 porphyrin/silver stoichiometry and assigned to it an overall stability constant of 5.0×10(26) M(-5) . The use of a model system allowed an independent assessment of a microscopic binding constant value (Km ) for the interaction between the triazolyl-pyridine ligand and Ag(I) . The coincidence that existed between the Km values extracted from the model system and the titration of 1 provided an indication of the quality and fit of the data analysis. It also allowed the calculation of the average effective molarity (EM) value for the three intramolecular processes that led to the cage assembly as 2.6 mM. Simulated speciation profiles supported the conclusion that at millimolar concentration and working under strict stoichiometric control of the silver/porphyrin ratio, the cage [Ag4 (1)2 ](4+) was the species exclusively assembled in solution. On the other hand, when the concentration of added Ag(I) was approximately 2.6 mM, 50 % of the coordination cage disassembled into open aggregates.
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Affiliation(s)
- Pablo Ballester
- Institute of Chemical Research of Catalonia (ICIQ), Avgda. Països Catalans 16, 43007 Tarragona (Spain).,Institution for Research and Advanced Studies (ICREA), Passeig Lluís Companys, 23, 08010 Barcelona (Spain)
| | - Mickaël Claudel
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg CNRS/UMR 7177, 4 rue Blaise Pascal, 67000 Strasbourg (France)
| | - Stéphanie Durot
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg CNRS/UMR 7177, 4 rue Blaise Pascal, 67000 Strasbourg (France)
| | - Lucas Kocher
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg CNRS/UMR 7177, 4 rue Blaise Pascal, 67000 Strasbourg (France)
| | - Laetitia Schoepff
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg CNRS/UMR 7177, 4 rue Blaise Pascal, 67000 Strasbourg (France)
| | - Valérie Heitz
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg CNRS/UMR 7177, 4 rue Blaise Pascal, 67000 Strasbourg (France)
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30
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Xu L, Wang YX, Yang HB. Recent advances in the construction of fluorescent metallocycles and metallocages via coordination-driven self-assembly. Dalton Trans 2015; 44:867-90. [PMID: 25429665 DOI: 10.1039/c4dt02996h] [Citation(s) in RCA: 126] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
During the last few years, the construction of fluorescent metallocycles and metallocages has attracted considerable attention because of their wide applications in fluorescence detection of metal ions, anions, or small molecules, mimicking complicated natural photo-processes, and preparing photoelectric devices, etc. This perspective focuses on the recent advances in the construction of a variety of fluorescent metallocycles and metallocages via coordination-driven self-assembly. In addition, the fluorescence properties and the applications of these organometallic architectures have also been discussed.
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Affiliation(s)
- Lin Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, 3663 N. Zhongshan Road, Shanghai, 200062, People's Republic of China.
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31
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Cook TR, Stang PJ. Recent Developments in the Preparation and Chemistry of Metallacycles and Metallacages via Coordination. Chem Rev 2015; 115:7001-45. [DOI: 10.1021/cr5005666] [Citation(s) in RCA: 1299] [Impact Index Per Article: 144.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Timothy R. Cook
- Department
of Chemistry, University at Buffalo, State University of New York, 359 Natural Sciences Complex, Buffalo, New York 14260, United States
| | - Peter J. Stang
- Department
of Chemistry, University of Utah, 315 S. 1400 E. Room 2020, Salt Lake City, Utah 84112, United States
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32
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Wood DM, Meng W, Ronson TK, Stefankiewicz AR, Sanders JKM, Nitschke JR. Guest-Induced Transformation of a Porphyrin-Edged FeII4L6Capsule into a CuIFeII2L4Fullerene Receptor. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411985] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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33
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Wood DM, Meng W, Ronson TK, Stefankiewicz AR, Sanders JKM, Nitschke JR. Guest-induced transformation of a porphyrin-edged Fe(II)4L6 capsule into a Cu(I)Fe(II)2L4 fullerene receptor. Angew Chem Int Ed Engl 2015; 54:3988-92. [PMID: 25655272 DOI: 10.1002/anie.201411985] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Indexed: 11/09/2022]
Abstract
The combination of a bent diamino(nickel(II) porphyrin) with 2-formylpyridine and Fe(II) yielded an Fe(II) 4 L6 cage. Upon treatment with the fullerenes C60 or C70 , this cage was found to transform into a new host-guest complex incorporating three Fe(II) centers and four porphyrin ligands, in an arrangement that is hypothesized to maximize π interactions between the porphyrin units of the host and the fullerene guest bound within its central cavity. The new complex shows coordinative unsaturation at one of the Fe(II) centers as the result of the incommensurate metal-to-ligand ratio, which enabled the preparation of a heterometallic cone-shaped Cu(I) Fe(II) 2 L4 adduct of C60 or C70 .
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Affiliation(s)
- Daniel M Wood
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW (UK)
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34
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Nagarajaprakash R, Govindarajan R, Manimaran B. One-pot synthesis of oxamidato-bridged hexarhenium trigonal prisms adorned with ester functionality. Dalton Trans 2015; 44:11732-40. [DOI: 10.1039/c5dt01102g] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The self-assembly of hexarhenium trigonal prisms using fac-Re(CO)3 cores (pink), bischelating oxamide ligands (green) and ester-containing tritopic linkers (blue) has been accomplished via an orthogonal bonding approach.
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Affiliation(s)
| | - R. Govindarajan
- Department of Chemistry
- Pondicherry University
- Puducherry
- India
| | - Bala. Manimaran
- Department of Chemistry
- Pondicherry University
- Puducherry
- India
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35
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Durot S, Taesch J, Heitz V. Multiporphyrinic cages: architectures and functions. Chem Rev 2014; 114:8542-78. [PMID: 25026396 DOI: 10.1021/cr400673y] [Citation(s) in RCA: 200] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Stéphanie Durot
- Laboratoire de Synthèse des Assemblages Moléculaires Multifonctionnels, Institut de Chimie de Strasbourg, CNRS/UMR 7177 , 4, rue Blaise Pascal, 67000 Strasbourg, France
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36
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Durot S, Flamigni L, Taesch J, Dang TT, Heitz V, Ventura B. Synthesis and Solution Studies of Silver(I)-Assembled Porphyrin Coordination Cages. Chemistry 2014; 20:9979-90. [DOI: 10.1002/chem.201402047] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Indexed: 11/10/2022]
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37
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Bivaud S, Goeb S, Balandier JY, Chas M, Allain M, Sallé M. Self-Assembled Cages from the Electroactive Bis(pyrrolo)tetrathiafulvalene (BPTTF) Building Block. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201400060] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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38
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Han M, Michel R, Clever GH. Rational Design of a Face-Centred Square-Cuboid Coordination Cage. Chemistry 2014; 20:10640-4. [DOI: 10.1002/chem.201303181] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 11/11/2013] [Indexed: 11/07/2022]
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39
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Mukherjee S, Mukherjee PS. Template-free multicomponent coordination-driven self-assembly of Pd(ii)/Pt(ii) molecular cages. Chem Commun (Camb) 2014; 50:2239-48. [DOI: 10.1039/c3cc49192g] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This article summarizes the recent developments in the construction of multicomponent molecular hollowed-out cages through the metal–ligand coordination-driven self-assembly process, with a focus on the decreasing relevance of the use of templates.
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Affiliation(s)
- Sandip Mukherjee
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012, India
| | - Partha Sarathi Mukherjee
- Department of Inorganic and Physical Chemistry
- Indian Institute of Science
- Bangalore 560012, India
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40
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Design and construction of supramolecular polysulfurated metallodendrimers with various shapes and sizes via coordination-driven self-assembly. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.04.058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Riddell IA, Hristova YR, Clegg JK, Wood CS, Breiner B, Nitschke JR. Five Discrete Multinuclear Metal-Organic Assemblies from One Ligand: Deciphering the Effects of Different Templates. J Am Chem Soc 2013; 135:2723-33. [DOI: 10.1021/ja311285b] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Imogen A. Riddell
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Yana R. Hristova
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Jack K. Clegg
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Christopher S. Wood
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Boris Breiner
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
| | - Jonathan R. Nitschke
- Department of Chemistry, University of Cambridge, Lensfield Road,
Cambridge CB2 1EW, U.K
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42
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Cook TR, Zheng YR, Stang PJ. Metal-organic frameworks and self-assembled supramolecular coordination complexes: comparing and contrasting the design, synthesis, and functionality of metal-organic materials. Chem Rev 2013; 113:734-77. [PMID: 23121121 PMCID: PMC3764682 DOI: 10.1021/cr3002824] [Citation(s) in RCA: 2126] [Impact Index Per Article: 193.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Timothy R. Cook
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah, 84112
| | - Yao-Rong Zheng
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah, 84112
| | - Peter J. Stang
- Department of Chemistry, University of Utah, 315 South 1400 East, RM 2020, Salt Lake City, Utah, 84112
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43
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Samanta D, Mukherjee PS. Multicomponent self-sorting of a Pd7 molecular boat and its use in catalytic Knoevenagel condensation. Chem Commun (Camb) 2013; 49:4307-9. [DOI: 10.1039/c2cc37377g] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Samanta D, Mukherjee PS. PtII6 nanoscopic cages with an organometallic backbone as sensors for picric acid. Dalton Trans 2013; 42:16784-95. [DOI: 10.1039/c3dt52268g] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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