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Islam SMS, Yasmeen R, Verma G, Tekarli SM, Nesterov VN, Ma S, Omary MA. A Copper-Based Metal-Organic Framework for Selective Separation of C2 Hydrocarbons from Methane at Ambient Conditions: Experiment and Simulation. Inorg Chem 2024; 63:8664-8673. [PMID: 38696593 DOI: 10.1021/acs.inorgchem.4c00188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2024]
Abstract
C2 hydrocarbon separation from methane represents a technological challenge for natural gas upgrading. Herein, we report a new metal-organic framework, [Cu2L(DEF)2]·2DEF (UNT-14; H4L = 4,4',4″,4‴-((1E,1'E,1″E,1‴E)-benzene-1,2,4,5-tetrayltetrakis(ethene-2,1-diyl))tetrabenzoic acid; DEF = N,N-diethylformamide; UNT = University of North Texas). The linker design will potentially increase the surface area and adsorption energy owing to π(hydrocarbon)-π(linker)/M interactions, hence increasing C2 hydrocarbon/CH4 separation. Crystallographic data unravel an sql topology for UNT-14, whereby [Cu2(COO)4]···[L]4- paddle-wheel units afford two-dimensional porous sheets. Activated UNT-14a exhibits moderate porosity with an experimental Brunauer-Emmett-Teller (BET) surface area of 480 m2 g-1 (vs 1868 m2 g-1 from the crystallographic data). UNT-14a exhibits considerable C2 uptake capacity under ambient conditions vs CH4. GCMC simulations reveal higher isosteric heats of adsorption (Qst) and Henry's coefficients (KH) for UNT-14a vs related literature MOFs. Ideal adsorbed solution theory yields favorable adsorption selectivity of UNT-14a for equimolar C2Hn/CH4 gas mixtures, attaining 31.1, 11.9, and 14.8 for equimolar mixtures of C2H6/CH4, C2H4/CH4, and C2H2/CH4, respectively, manifesting efficient C2 hydrocarbon/CH4 separation. The highest C2 uptake and Qst being for ethane are also desirable technologically; it is attributed to the greatest number of "agostic" or other dispersion C-H bond interactions (6) vs 4/2/4 for ethylene/acetylene/methane.
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Affiliation(s)
- Sheikh M S Islam
- Department of Chemistry, University of North Texas, 1155 Union Circle, Denton, Texas 76203, United States
| | - Rashida Yasmeen
- Department of Materials Science & Engineering, University of North Texas, 1155 Union Circle, Denton, Texas 76203, United States
| | - Gaurav Verma
- Department of Chemistry, University of North Texas, 1155 Union Circle, Denton, Texas 76203, United States
| | - Sammer M Tekarli
- Department of Multidisciplinary Innovation, University of North Texas, 12995 Preston Rd., Frisco, Texas 75033, United States
| | - Vladimir N Nesterov
- Department of Chemistry, University of North Texas, 1155 Union Circle, Denton, Texas 76203, United States
| | - Shengqian Ma
- Department of Chemistry, University of North Texas, 1155 Union Circle, Denton, Texas 76203, United States
| | - Mohammad A Omary
- Department of Chemistry, University of North Texas, 1155 Union Circle, Denton, Texas 76203, United States
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Lu Z, Chilukuri B, Yang C, Rawashdeh AMM, Arvapally RK, Tekarli SM, Wang X, Cardenas CT, Cundari TR, Omary MA. Au 3-to-Ag 3 coordinate-covalent bonding and other supramolecular interactions with covalent bonding strength. Chem Sci 2020; 11:11179-11188. [PMID: 34094358 PMCID: PMC8162903 DOI: 10.1039/d0sc02520h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient strategy for designing charge-transfer complexes using coinage metal cyclic trinuclear complexes (CTCs) is described herein. Due to opposite quadrupolar electrostatic contributions from metal ions and ligand substituents, [Au(μ-Pz-(i-C3H7)2)]3·[Ag(μ-Tz-(n-C3F7)2)]3 (Pz = pyrazolate, Tz = triazolate) has been obtained and its structure verified by single crystal X-ray diffraction – representing the 1st crystallographically-verified stacked adduct of monovalent coinage metal CTCs. Abundant supramolecular interactions with aggregate covalent bonding strength arise from a combination of M–M′ (Au → Ag), metal–π, π–π interactions and hydrogen bonding in this charge-transfer complex, according to density functional theory analyses, yielding a computed binding energy of 66 kcal mol−1 between the two trimer moieties – a large value for intermolecular interactions between adjacent d10 centres (nearly doubling the value for a recently-claimed Au(i) → Cu(i) polar-covalent bond: Proc. Natl. Acad. Sci. U.S.A., 2017, 114, E5042) – which becomes 87 kcal mol−1 with benzene stacking. Surprisingly, DFT analysis suggests that: (a) some other literature precedents should have attained a stacked product akin to the one herein, with similar or even higher binding energy; and (b) a high overall intertrimer bonding energy by inferior electrostatic assistance, underscoring genuine orbital overlap between M and M′ frontier molecular orbitals in such polar-covalent M–M′ bonds in this family of molecules. The Au → Ag bonding is reminiscent of classical Werner-type coordinate-covalent bonds such as H3N: → Ag in [Ag(NH3)2]+, as demonstrated herein quantitatively. Solid-state and molecular modeling illustrate electron flow from the π-basic gold trimer to the π-acidic silver trimer with augmented contributions from ligand-to-ligand’ (LL′CT) and metal-to-ligand (MLCT) charge transfer. A stacked Ag3–Au3 bonded (66 kcal mol−1) complex obtained crystallographically exhibits charge-transfer characteristics arising from multiple cooperative supramolecular interactions.![]()
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Affiliation(s)
- Zhou Lu
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA
| | - Bhaskar Chilukuri
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA .,Department of Chemistry, Illinois State University Normal Illinois 61790 USA
| | - Chi Yang
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA .,Center for Materials Research, Norfolk State University Norfolk Virginia 23504 USA
| | - Abdel-Monem M Rawashdeh
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA .,Department of Chemistry, Yarmouk University Irbid 21163 Jordan
| | - Ravi K Arvapally
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA
| | - Sammer M Tekarli
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA .,New College, University of North Texas 2811 Internet Blvd Suite 100 Frisco Texas 75034 USA
| | - Xiaoping Wang
- Neutron Scattering Division, Oak Ridge National Laboratory Oak Ridge Tennessee 37831-6475 USA
| | - Christian T Cardenas
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA
| | - Thomas R Cundari
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA
| | - Mohammad A Omary
- Department of Chemistry, University of North Texas 1155 Union Circle #305070 Denton Texas 76203 USA .,Department of Chemistry, Yarmouk University Irbid 21163 Jordan
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Yang C, Arvapally RK, Tekarli SM, Salazar GA, Elbjeirami O, Wang X, Omary MA. Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yang C, Arvapally RK, Tekarli SM, Salazar GA, Elbjeirami O, Wang X, Omary MA. Inside Back Cover: Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air (Angew. Chem. Int. Ed. 16/2015). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/anie.201502476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Yang C, Arvapally RK, Tekarli SM, Salazar GA, Elbjeirami O, Wang X, Omary MA. Innenrücktitelbild: Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air (Angew. Chem. 16/2015). Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Yang C, Arvapally RK, Tekarli SM, Salazar GA, Elbjeirami O, Wang X, Omary MA. Formation of a Fluorous/Organic Biphasic Supramolecular Octopus Assembly for Enhanced Porphyrin Phosphorescence in Air. Angew Chem Int Ed Engl 2015; 54:4842-6. [DOI: 10.1002/anie.201411462] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 01/20/2015] [Indexed: 11/11/2022]
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Galassi R, Ricci S, Burini A, Macchioni A, Rocchigiani L, Marmottini F, Tekarli SM, Nesterov VN, Omary MA. Solventless supramolecular chemistry via vapor diffusion of volatile small molecules upon a new trinuclear silver(I)-nitrated pyrazolate macrometallocyclic solid: an experimental/theoretical investigation of the dipole/quadrupole chemisorption phenomena. Inorg Chem 2013; 52:14124-37. [PMID: 24256298 DOI: 10.1021/ic401948p] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
A comparative study on the tendency of a new trinuclear silver(I) pyrazolate, namely, [N,N-(3,5-dinitropyrazolate)Ag]3 (1), and a similar compound known previously, [N,N-[3,5-bis(trifluoromethyl)pyrazolate]Ag]3 (2), to adsorb small volatile molecules was performed. It was found that 1 has a remarkable tendency to form adducts, at room temperature and atmospheric pressure, with acetone, acetylacetone, ammonia, pyridine, acetonitrile, triethylamine, dimethyl sulfide, and tetrahydrothiophene, while carbon monoxide, tetrahydrofuran, alcohols, and diethyl ether were not adsorbed. On the contrary, 2 did not undergo adsorption of any of the aforementioned volatile molecules. Adducts of 1 were characterized by elemental analysis, IR, thermogravimetric analysis (TGA), Brunauer-Emmett-Teller (BET) surface area, and diffusion NMR measurements. The crystal structures of 1·2CH3CN and compound 3, derived from an attempt to crystallize the adduct of 1 with ammonia, were determined by single-crystal X-ray diffractometric studies. The former shows a sandwich structure with a 1:2 stoichiometric [Ag3]/[CH3CN] ratio in which one acetonitrile molecule points above and the other below the centroid of the Ag3N6 metallocycle. Compound 3 formed via rearrangement of the ammonia adduct to yield an anionic trinuclear silver(I) derivative with an additional bridging 3,5-dinitropyrazolate and having [Ag(NH3)2](+) as the counterion, [Ag(NH3)2][N,N-(3,5-dinitropyrazolate)4Ag3]. Irreversible sorption and/or decomposition upon vapor exposure are desirable advantages toward toxic gas filtration applications, including ammonia inhalation. TGA confirms the analytical data for all of the samples, showing weight loss for each adsorbed molecule at temperatures significantly higher than the corresponding boiling temperature, which suggests a chemical-bonding nature for adsorption as opposed to physisorption. BET surface measurements of the "naked" compound 1 excluded physical adsorption in its porous cavities. Density functional theory simulation results are also consistent with the chemisorption model, explain the experimental adsorption selectivity for 1, and attribute the lack of similar adsorption by 2 to significantly less polarizable electrostatic potential and also to strong argentophilic bonding whose energy is even higher than the quadrupole-dipole adduct bond energy upon proper selection of the density functional.
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Affiliation(s)
- Rossana Galassi
- School of Science and Technology, University of Camerino , Via Sant'Agostino 1, Camerino I-62032, Italy
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Tekarli SM, Williams TG, Cundari TR. Activation of Carbon−Hydrogen and Hydrogen−Hydrogen Bonds by Copper−Nitrenes: A Comparison of Density Functional Theory with Single- and Multireference Correlation Consistent Composite Approaches. J Chem Theory Comput 2009; 5:2959-66. [DOI: 10.1021/ct900277m] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sammer M. Tekarli
- Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
| | - T. Gavin Williams
- Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
| | - Thomas R. Cundari
- Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
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Tekarli SM, Drummond ML, Williams TG, Cundari TR, Wilson AK. Performance of Density Functional Theory for 3d Transition Metal-Containing Complexes: Utilization of the Correlation Consistent Basis Sets. J Phys Chem A 2009; 113:8607-14. [DOI: 10.1021/jp811503v] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sammer M. Tekarli
- Center for Advanced Scientific Computing and Modeling (CASCaM), Department of Chemistry, University of North Texas, Denton, Texas 76203-5070
| | - Michael L. Drummond
- Center for Advanced Scientific Computing and Modeling (CASCaM), Department of Chemistry, University of North Texas, Denton, Texas 76203-5070
| | - T. Gavin Williams
- Center for Advanced Scientific Computing and Modeling (CASCaM), Department of Chemistry, University of North Texas, Denton, Texas 76203-5070
| | - Thomas R. Cundari
- Center for Advanced Scientific Computing and Modeling (CASCaM), Department of Chemistry, University of North Texas, Denton, Texas 76203-5070
| | - Angela K. Wilson
- Center for Advanced Scientific Computing and Modeling (CASCaM), Department of Chemistry, University of North Texas, Denton, Texas 76203-5070
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Kazi AB, Rasika Dias HV, Tekarli SM, Morello GR, Cundari TR. Coinage Metal−Ethylene Complexes Supported by Tris(pyrazolyl)borates: A Computational Study. Organometallics 2009. [DOI: 10.1021/om8010454] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Abul B. Kazi
- Department of Chemistry, University of Arkansas-Pine Bluff, Pine Bluff, Arkansas 71601, Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, Texas 76019-0065, and Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
| | - H. V. Rasika Dias
- Department of Chemistry, University of Arkansas-Pine Bluff, Pine Bluff, Arkansas 71601, Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, Texas 76019-0065, and Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
| | - Sammer M. Tekarli
- Department of Chemistry, University of Arkansas-Pine Bluff, Pine Bluff, Arkansas 71601, Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, Texas 76019-0065, and Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
| | - Glenn R. Morello
- Department of Chemistry, University of Arkansas-Pine Bluff, Pine Bluff, Arkansas 71601, Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, Texas 76019-0065, and Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
| | - Thomas R. Cundari
- Department of Chemistry, University of Arkansas-Pine Bluff, Pine Bluff, Arkansas 71601, Department of Chemistry and Biochemistry, The University of Texas at Arlington, 700 Planetarium Place, Arlington, Texas 76019-0065, and Department of Chemistry, Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, Box 305070, Denton, Texas 76203-5070
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Tekarli SM, Cundari TR, Omary MA. Rational design of macrometallocyclic trinuclear complexes with superior pi-acidity and pi-basicity. J Am Chem Soc 2008; 130:1669-75. [PMID: 18193869 DOI: 10.1021/ja076527u] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Density functional theory (DFT) has been used to assess the pi-acidity and pi-basicity of metal-organic trimetallic macromolecular complexes of the type [M(mu-L)]3, where M = Cu, Ag, or Au and L = carbeniate, imidazolate, pyridiniate, pyrazolate, or triazolate. The organic compounds benzene, triazole, imidazole, pyrazole, and pyridine were also modeled, and their substituent effects were compared to those of the coinage metal trimers. Our results, based on molecular electrostatic potential surfaces and positive charge attraction energy curves, indicate that the metal-organic macromolecules show superior pi-acidity and -basicity compared to their organic counterparts. Moreover, the metal-organic cyclic trimers are found to exhibit pi-acidity and -basicity that can be systematically tuned both coarsely and finely by judicious variation of the bridging ligand (relative pi-basicity imidazolate > pyridiniate > carbeniate > pyrazolate > triazolate), metal (relative pi-basicity Au > Cu > Ag), and ligand substituents. These computational findings are thus guiding experimental efforts to rationally design novel [M(mu-L)]3 materials for applications in molecular electronic devices that include metal-organic field-effect transistors and light-emitting diodes.
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Affiliation(s)
- Sammer M Tekarli
- Department of Chemistry, Center for Advanced Scientific Computing and Modeling, University of North Texas, Denton, Texas 76203, USA
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Perera BA, Gallardo AL, Barr JM, Tekarli SM, Anbalagan V, Talaty ER, Van Stipdonk MJ. Influence of a ring substituent on the tendency to form H(2)O adducts to Ag(+) complexes with phenylalanine analogues in an ion trap mass spectrometer. J Mass Spectrom 2002; 37:401-413. [PMID: 11948847 DOI: 10.1002/jms.296] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In a previous report we showed that certain binary Ag(+)-amino acid complexes formed adduct ions by the attachment of a single water and methanol molecule when stored in an ion trap mass spectrometer: complexes with aliphatic amino acids and with 4-fluorophenylalanine formed the adduct ions whereas complexes with phenylalanine and tryptophan did not. In this study we compared the tendency of the Ag(+) complexes derived from phenylalanine, 4-fluorophenylalanine, 4-hydroxyphenylalanine (tyrosine), 4-bromophenylalanine, 4-nitrophenylalanine and aminocyclohexanepropionic acid to form water adducts when stored, without further activation, in the ion trap for times ranging from 1 to 500 ms. Because the donation of pi electron density to the Ag(+) ion is a likely determining factor in complex reactivity, our aim in the present study was to determine qualitatively the influence of para-position substituents on the aromatic ring on the formation of the water adducts. Our results show that the reactivity of the complexes is influenced significantly by the presence of the various substituents. Decreases in [M + Ag](+) ion abundance, and increases in adduct ion abundance, both measured as a function of storage time, follow the trend -NO(2) > -Br > -F > -OH > -H. The complex of Ag(+) with 4-nitrophenylalanine was nearly as reactive towards water as the Ag(+) complex with aminocyclohexanepropionic acid, the last being an amino acid devoid of pi character in the ring system. Collision induced dissociation of the [M + Ag](+) species derived from the amino acids produces, among other products, Ag(+) complexes with a para-substituted phenylacetaldehyde: complexes that also form adduct species when stored in the ion trap. The trends in adduct ion formation exhibited by the aldehyde-Ag(+) complex ions were similar to those observed for the precursor complexes of Ag(+) and the amino acids, confirming the influence of the ring substituent.
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Affiliation(s)
- B A Perera
- Department of Chemistry, Wichita State University, Wichita, Kansas 67260-0051, USA
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