51
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Lorzing GR, Gosselin AJ, Lindner BS, Bhattacharjee R, Yap GPA, Caratzoulas S, Bloch ED. Design and synthesis of capped-paddlewheel-based porous coordination cages. Chem Commun (Camb) 2019; 55:9527-9530. [DOI: 10.1039/c9cc05002g] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel cluster capping strategy is employed to leverage the structural diversity of metal–organic cages toward the isolation of porous cages.
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Affiliation(s)
- Gregory R. Lorzing
- Department of Chemistry and Biochemistry
- University of Delaware
- Newark
- USA
- Center for Neutron Science
| | - Aeri J. Gosselin
- Department of Chemistry and Biochemistry
- University of Delaware
- Newark
- USA
| | - Brian S. Lindner
- Department of Chemistry and Biochemistry
- University of Delaware
- Newark
- USA
| | | | - Glenn P. A. Yap
- Department of Chemistry and Biochemistry
- University of Delaware
- Newark
- USA
| | - Stavros Caratzoulas
- Catalysis Center for Energy Innovation (CCEI) University of Delaware
- Newark
- USA
| | - Eric D. Bloch
- Department of Chemistry and Biochemistry
- University of Delaware
- Newark
- USA
- Center for Neutron Science
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52
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Zhou W, Fang Y, Ren J, Dong S. DNA-templated silver and silver-based bimetallic clusters with remarkable and sequence-related catalytic activity toward 4-nitrophenol reduction. Chem Commun (Camb) 2019; 55:373-376. [DOI: 10.1039/c8cc08810a] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Illustrative pathways for the preparation of bimetallic nanoclusters using DNA-AgNC, and a schematic representation of the reduction of 4-NP to 4-AP in the presence of DNA-AgNC or bimetallic nanoclusters.
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Affiliation(s)
- Weijun Zhou
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
- Jilin
- P. R. China
- University of the Chinese Academy of Sciences
- Beijing
| | - Youxing Fang
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
- Jilin
- P. R. China
| | - Jiangtao Ren
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
- Jilin
- P. R. China
| | - Shaojun Dong
- State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun
- Jilin
- P. R. China
- University of the Chinese Academy of Sciences
- Beijing
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53
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Geng D, Han X, Bi Y, Qin Y, Li Q, Huang L, Zhou K, Song L, Zheng Z. Merohedral icosahedral M 48 (M = Co II, Ni II) cage clusters supported by thiacalix[4]arene. Chem Sci 2018; 9:8535-8541. [PMID: 30568777 PMCID: PMC6251337 DOI: 10.1039/c8sc03193b] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/12/2018] [Indexed: 11/21/2022] Open
Abstract
Cage clusters are a discrete chemically and topologically diverse family of molecule-based functional materials. Presented here are two isostructural M48 (M = CoII for LSHU01, NiII for LSHU02) cage clusters with a merohedral icosahedral cage structure featuring 12 M4-TC4A (H4TC4A, p-tert-butylthiacalix[4]arene) second building units as vertices and 18 asymmetric 5-(1H-tetrazol-1-yl)isophthalate ligands as faces. They are the highest-nuclearity cage compounds of CoII and NiII. The activated Co48 cage exhibited high selectivity in the sorption of C3H8 over CH4 under ambient conditions. Frequency response experiments indicated that the extrinsic voids and matrix interface of the activated crystalline samples are primarily responsible for the observed gas adsorption performance.
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Affiliation(s)
- Dantong Geng
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Xu Han
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Yanfeng Bi
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Yucai Qin
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Qiang Li
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Liangliang Huang
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Kun Zhou
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Lijuan Song
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
| | - Zhiping Zheng
- College of Chemistry , Chemical Engineering and Environmental Engineering , Liaoning Shihua University , Fushun 113001 , P. R. China . ;
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen , Guangdong 518000 , China .
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54
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Gosselin EJ, Rowland CA, Balto KP, Yap GPA, Bloch ED. Design and Synthesis of Porous Nickel(II) and Cobalt(II) Cages. Inorg Chem 2018; 57:11847-11850. [PMID: 29847928 PMCID: PMC6207193 DOI: 10.1021/acs.inorgchem.8b01130] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Coordination assemblies containing transition-metal cations with coordinatively unsaturated sites remain a challenging target in the synthesis of porous molecules. Herein, we report the design, synthesis, and characterization of three porous hybrid inorganic/organic porous molecular assemblies based on cobalt(II) and nickel(II). Precise tuning of ligand functionalization allows for the isolation of molecular species in addition to two- and three-dimensional metal-organic frameworks. The cobaltous and nickelous cage compounds display excellent thermal stabilities in excess of 473 K and Brunauer-Emmett-Teller surface areas on the order of 200 m2/g. The precise ligand functionalization utilized here to control phases between discrete molecules and higher-dimensional solids can potentially further be tuned to optimize the porosity and solubility in future molecular systems.
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Affiliation(s)
- Eric J. Gosselin
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Casey A. Rowland
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Krista P. Balto
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Glenn P. A. Yap
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Eric D. Bloch
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware 19716, United States
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55
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Rowland CA, Lorzing GR, Gosselin AJ, Trump BA, Yap GPA, Brown CM, Bloch ED. Methane Storage in Paddlewheel-Based Porous Coordination Cages. J Am Chem Soc 2018; 140:11153-11157. [PMID: 30122041 DOI: 10.1021/jacs.8b05780] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Although gas adsorption properties of extended three-dimensional metal-organic materials have been widely studied, they remain relatively unexplored in porous molecular systems. This is particularly the case for porous coordination cages for which surface areas are typically not reported. Herein, we report the synthesis, characterization, activation, and gas adsorption properties of a family of carbazole-based cages. The chromium analog displays a coordination cage record BET (Brunauer-Emmett-Teller) surface area of 1235 m2/g. With precise synthesis and activation procedures, two previously reported cages similarly display high surface areas. The materials exhibit high methane adsorption capacities at 65 bar with the chromium(II) cage displaying CH4 capacities of 194 cm3/g and 148 cm3/cm3. This high uptake is a result of optimal pore design, which was confirmed via powder neutron diffraction experiments.
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Affiliation(s)
| | | | | | - Benjamin A Trump
- Center for Neutron Research , National Institute of Standards and Technology , Gaithersburg , Maryland 20899 , United States
| | | | - Craig M Brown
- Center for Neutron Research , National Institute of Standards and Technology , Gaithersburg , Maryland 20899 , United States
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56
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Hong CM, Morimoto M, Kapustin EA, Alzakhem N, Bergman RG, Raymond KN, Toste FD. Deconvoluting the Role of Charge in a Supramolecular Catalyst. J Am Chem Soc 2018; 140:6591-6595. [PMID: 29767972 DOI: 10.1021/jacs.8b01701] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have demonstrated that the microenvironment of a highly anionic supramolecular catalyst can mimic the active sites of enzymes and impart rate accelerations of a million-fold or more. However, these microenvironments can be challenging to study, especially in the context of understanding which specific features of the catalyst are responsible for its high performance. We report here the development of an experimental mechanistic probe consisting of two isostructural catalysts. When examined in parallel transformations, the behavior of these catalysts provides insight relevant to the importance of anionic host charge on reactivity. These two catalysts exhibit similar host-substrate interactions, but feature a significant difference in overall anionic charge (12- and 8-). Within these systems, we compare the effect of constrictive binding in a net neutral aza-Cope rearrangement. We then demonstrate how the magnitude of anionic host charge has an exceptional influence on the reaction rates for a Nazarov cyclization, evidenced by an impressive 680-fold change in reaction rate as a consequence of a 33% reduction in catalyst charge.
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Affiliation(s)
- Cynthia M Hong
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Mariko Morimoto
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Eugene A Kapustin
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Nicola Alzakhem
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Robert G Bergman
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - Kenneth N Raymond
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
| | - F Dean Toste
- Chemical Sciences Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States.,Department of Chemistry , University of California , Berkeley , California 94720 , United States
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57
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Zhu X, Wang S, Han H, Liao W. Organoamine-induced isomerism of calixarene-based complexes: from 1D to 2D. RSC Adv 2018; 8:39208-39213. [PMID: 35558306 PMCID: PMC9092452 DOI: 10.1039/c8ra07833e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Accepted: 11/16/2018] [Indexed: 11/29/2022] Open
Abstract
Two isomers of the calixarene-based cobalt complex [Co4Cl(TC4A)(BCPT)2]− (H4TC4A = p-tert-butylthiacalix[4]arene; H2BCPT = 3,5-bis (4′-carboxy-phenyl)-1,2,4-triazole) were obtained under the solvothermal conditions with tetramethylammonium/tetraethylammonium hydroxide (CIAC-236) and triethylamine (CIAC-237). Single crystal X-ray diffraction reveals that CIAC-236 has a 1D zigzag aggregate constructed by bridging the shuttlecock-like Co4–TC4A secondary building units (SBUs) with two pairs of opposite V-shaped BCPT ligands while CIAC-237 possesses a 2D layer assembly with each Co4–TC4A SBU bonded by four BCPT ligands in a same direction (clockwise or counterclockwise), which indicates that different shapes of the organoamines lead to different assembly of the BCPT ligands and the formation of different extended aggregates. For comparison, only the 1D structure ([Fe4Cl(TC4A)](BCPT)2]−, CIAC-238) was obtained for the iron complexes with all these three organoamines, which would be attributed to different property and coordination of iron element. Magnetic properties of all these three compounds were studied. Two isomers of the calixarene-based cobalt complex, 1D aggregate and 2D network, were obtained with different organoamine templates.![]()
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Affiliation(s)
- Xiaofei Zhu
- School of Chemistry and Life Science
- Changchun University of Technology
- Changchun 130012
- China
- State Key Laboratory of Rare Earth Resource Utilization
| | - Shentang Wang
- State Key Laboratory of Rare Earth Resource Utilization
- ERC for the Separation and Purification of REs and Thorium
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Haitao Han
- State Key Laboratory of Rare Earth Resource Utilization
- ERC for the Separation and Purification of REs and Thorium
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
| | - Wuping Liao
- State Key Laboratory of Rare Earth Resource Utilization
- ERC for the Separation and Purification of REs and Thorium
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
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