1
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Singh V, Feldman Y, Leitus G, Brumfeld V, Shimon LJW, Lahav M, van der Boom ME. Factors Controlling Complex Morphologies of Isomorphous Metal-Organic Frameworks. Chemistry 2023; 29:e202301825. [PMID: 37334917 DOI: 10.1002/chem.202301825] [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: 06/07/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 06/21/2023]
Abstract
We demonstrate here how nitrate salts of bivalent copper, nickel, cobalt, and manganese, along with an achiral organic ligand, assemble into various structures such as symmetrical double-decker flowers, smooth elongated hexagonal bipyramids, and hexagonal prisms. Large morphological changes occur in these structures because of different metal cations, although they maintain isomorphous hexagonal crystallographic structures. Metal cations with stronger coordination to ligands (Cu and Ni) tend to form uniform crystals with unusual shapes, whereas weaker coordinating metal cations (Mn and Co) produce crystals with more regular hexagonal morphologies. The unusual flower-like crystals formed with copper nitrate have two pairs of six symmetrical petals with hexagonal convex centers. The texture of the petals indicates dendritic growth. Two different types of morphologies were formed by using different copper nitrate-to-ligand ratios. An excess of the metal salt results in uniform and hexagonal crystals having a narrow size distribution, whereas the use of an excess of ligand results in double-decker morphologies. Mechanistically, an intermediate structure was observed with slightly concave facets and a domed center. Such structures most likely play a key role in the formation of double-decker crystals that can be formed by fusion processes. The coordination chemistry results in isostructural chiral frameworks consisting of two types of continuous helical channels. Four pyridine units from four separate ligands are coordinated to the metal center in a plane having a chiral (propeller-type) arrangement. The individual double-decker flower crystals are homochiral and a batch consists of crystals having both handedness.
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Affiliation(s)
- Vivek Singh
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Yishay Feldman
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Gregory Leitus
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Vlad Brumfeld
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Linda J W Shimon
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Michal Lahav
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Milko E van der Boom
- Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot, 7610001, Israel
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2
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Sangeetha T, Sahana R, Mounica P, Elangovan A, Shanmugam R, Arivazhagan G. H – Bond interactions in water multimers and water multimers – Pyridine complexes: Natural bond orbital and reduced density gradient isosurface analyses. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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3
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Structural characterization, molecular docking assessment, drug-likeness study and DFT investigation of 2-(2-{1,2-dibromo-2-[3-(4-chloro-phenyl)-[1,2,4]oxadiazol-5-yl]-2-fluoro-ethyl1}-phenyl)-methyl 3-methoxy-acrylic ester. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Vinod Mouli MSS, Kumar Mishra A. Divergent Crystallographic Architecture for Silver‐Flavin Complexes Induced via pH Variation. ChemistrySelect 2022. [DOI: 10.1002/slct.202202126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- M. S. S. Vinod Mouli
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi Sangareddy 502285 Telangana
| | - Ashutosh Kumar Mishra
- Department of Chemistry Indian Institute of Technology Hyderabad Kandi Sangareddy 502285 Telangana
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5
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Stereoisomer-dependent conversion of dinaphthothienothiophene precursor films. Sci Rep 2022; 12:4448. [PMID: 35292720 PMCID: PMC8924201 DOI: 10.1038/s41598-022-08505-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 03/08/2022] [Indexed: 11/12/2022] Open
Abstract
Soluble precursor materials of organic semiconductors are employed for fabricating solution-processable thin film devices. While the so-called precursor approach has already been tried for various organic electronic devices such as transistors and solar cells, understanding of the conversion process in the film lags far behind. Here, we report that molecular aggregation of the precursor compound significantly influences the thermal conversion reaction in the film. For this study, two stereoisomers of a dinaphthothienothiophene (DNTT) precursor that are the endo- and exo-DNTT-phenylmaleimide monoadducts are focused on. The structural change during the thermal conversion process has been investigated by a combination of infrared spectroscopy and X-ray diffraction techniques. The results show that the endo-isomer is readily converted to DNTT in the film by heating, whereas the exo-isomer exhibits no reaction at all. This reaction suppression is found to be due to the self-aggregation property of the exo-isomer accompanying the intermolecular C–H\documentclass[12pt]{minimal}
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\begin{document}$$\cdots$$\end{document}⋯O interactions. This finding shows a new direction of controlling the on-surface reaction, as well as the importance of analyzing the film structure at the initial stage of the reaction.
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6
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Thirunavukkarasu M, Balaji G, Muthu S, Sakthivel S, Prabakaran P, Irfan A. Theoretical conformations studies on 2-Acetyl-gamma-butyrolactone structure and stability in aqueous phase and the solvation effects on electronic properties by quantum computational methods. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2021.113534] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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7
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Márquez-Gutiérrez JR, Mojica-Sánchez JP, Macias-López EG, Martínez-Martínez FJ, Magaña-Vergara NE, Mendoza-Muñoz N. Structure–property relationship of novel supramolecular gels based on coumarins. NEW J CHEM 2021. [DOI: 10.1039/d1nj01784e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
LMWGs based on coumarins could form supramolecular gels with unusual mechanical properties explained by its interactions at theoretical level.
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Affiliation(s)
| | - Juan Pablo Mojica-Sánchez
- Tecnológico Nacional de México
- Instituto Tecnológico José Mario Molina Pasquel y Henríquez Campus Tamazula de Gordiano
- 49650 Tamazula de Gordiano
- Mexico
| | | | | | - Nancy Evelyn Magaña-Vergara
- Consejo Nacional Ciencia y Tecnologia (CONACYT)
- Facultad de Ciencias Químicas
- Universidad de Colima
- Km 9 Carretera Colima-Coquimatlán
- Colima
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8
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Keshri SK, Nakanishi W, Takai A, Ishizuka T, Kojima T, Takeuchi M. Discrete π Stack of a Tweezer-Shaped Naphthalenediimide-Anthracene Conjugate. Chemistry 2020; 26:13288-13294. [PMID: 32583576 DOI: 10.1002/chem.202002477] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Indexed: 12/22/2022]
Abstract
The design and synthesis of a tweezer-shaped naphthalenediimide (NDI)-anthracene conjugate (2NDI) are reported. In the structure of the closed form (πNDI ⋅⋅⋅πNDI stack) of 2NDI, which was elucidated by single-crystal XRD, the existence of C-H⋅⋅⋅O hydrogen bonding involving the nearest carbonyl oxygen atom of an NDI unit was suggested. The tunability of πNDI ⋅⋅⋅πNDI interactions was studied by means of UV/Vis absorption, fluorescence and NMR spectroscopy and molecular modelling. This revealed that the πNDI ⋅⋅⋅πNDI interactions in 2NDI affect the absorption and emission properties depending on the temperature. Furthermore, in polar solvents, 2NDI prefers the stronger πNDI ⋅⋅⋅πNDI stack, whereas the πNDI ⋅⋅⋅πNDI interaction is diminished in nonpolar solvents. Importantly, the conformational variations of 2NDI can be reversibly switched by variation in temperature, and this suggests potential application for fluorogenic molecular switches upon temperature changes.
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Affiliation(s)
- Sudhir Kumar Keshri
- Molecular Design and Function Group, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 305-0047, Japan
| | - Waka Nakanishi
- Molecular Design and Function Group, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 305-0047, Japan
| | - Atsuro Takai
- Molecular Design and Function Group, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 305-0047, Japan
| | - Tomoya Ishizuka
- Department of Chemistry, Faculty of Pure & Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Japan
| | - Takahiko Kojima
- Department of Chemistry, Faculty of Pure & Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8571, Japan
| | - Masayuki Takeuchi
- Molecular Design and Function Group, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, 305-0047, Japan
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9
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Weak Interactions and Conformational Changes in Core-Protonated A 2- and A x-Type Porphyrin Dications. Molecules 2020; 25:molecules25143195. [PMID: 32668713 PMCID: PMC7397311 DOI: 10.3390/molecules25143195] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 07/09/2020] [Accepted: 07/10/2020] [Indexed: 11/25/2022] Open
Abstract
Individual chemical motifs are known to introduce structural distortions to the porphyrin macrocycle, be it in the core or at the periphery of the macrocycle. The interplay when introducing two or more of these known structural motifs has been scarcely explored and is not necessarily simply additive; these structural distortions have a chance to compound or negate to introduce new structural types. To this end, a series of compounds with complementary peripheral (5,15-disubstitution) and core (acidification) substitution patterns were investigated. The single-crystal X-ray structures of 18 5,15-diphenylporphyrin, 5,15-diphenylporphyrindi-ium diacid, and related compounds are reported, including the first example of a 5,15-dialkylporphyrindi-ium. Normal-coordinate structural decomposition (NSD) analysis is used for a detailed analysis of the conformation of the porphyrin subunit within the crystal structures. An elongation of porphyrin macrocycles along the C5,C15- axis (B2g symmetry) is observed in all of the free base porphyrins and porphyrin dications; distance across the core is around 0.3 Å in the free base and diacid compounds, and more than doubled in 5,15-dipentylporphyrin and 5,15-dipentylporphyrindi-ium diacid. While the free base porphyrins are largely planar, a large out-of-plane distortion can be observed in 5,15-diphenylporphyrin diacids, with the expected “projective saddle” shape characteristic for such systems. The combination of these two distortions (B2u and B2g) from regular porphyrin structure results in a macrocycle best characterized in the chiral point-group D2. A rare structural type of a cis-hydrogen bond chelate is observed for 5,15-dipentylporphyrindi-ium diacid, which adopts an achiral C2v symmetry. Crystallographic data indicate that the protonated porphyrin core forms hydrogen bonding chelates (N-H⋯X⋯H-N) to counter-anions. Weaker interactions, such as induced intramolecular C-H⋯O interactions from the porphyrin periphery are described, with distances characteristic of charge-assisted interactions. This paper offers a conceptual framework for accessing porphyrin macrocycles with designable distortion and symmetry, useful for the selective perturbation of electronic states and a design-for-application approach to solid state porphyrin materials.
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10
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Lomas JS. Cooperativity in alkane-1,2- and 1,3-polyols: NMR, QTAIM, and IQA study of O─H … OH and C─H … OH bonding interactions. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2020; 58:666-684. [PMID: 32201981 DOI: 10.1002/mrc.5014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 02/26/2020] [Accepted: 02/29/2020] [Indexed: 06/10/2023]
Abstract
Proton nuclear magnetic resonance chemical shifts and atom-atom interaction energies for alkanepolyols with 1,2-diol and 1,3-diol repeat units, and for their 1:1 pyridine complexes, are computed by density functional theory calculations. In the 1,3-polyols, based on a tG'Gg' repeat unit, the only important intramolecular hydrogen bonding interactions are O─H… OH. By quantum theory of atoms in molecules analysis of the electron density, unstable bond and ring critical points are found for such interactions in 1,2-polyols with tG'g repeat units, from butane-1,2,3,4-tetrol onwards and in their pyridine complexes from propane-1,2,3-triol onwards. Several features (OH proton shifts and charges, and interaction energies computed by the interacting quantum atoms approach) are used to monitor the dependence of cooperativity on chain length: This is much less regular in 1,2-polyols than in 1,3-polyols and by most criteria has a higher damping factor. Well defined C─H… OH interactions are found in butane-1,2,3,4-tetrol and higher members of the 1,2-polyol series, as well as in their pyridine complexes: There is no evidence for cooperativity with O─H… OH bonding. For the 1,2-polyols, there is a tenuous empirical relationship between the existence of a bond critical point for O─H… OH hydrogen bonding and the interaction energies of competing exchange channels, but the primary/secondary ratio is always less than unity.
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Affiliation(s)
- John S Lomas
- ITODYS (CNRS UMR-7086), Université de Paris, Paris, France
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11
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Webber AL, Yates JR, Zilka M, Sturniolo S, Uldry AC, Corlett EK, Pickard CJ, Pérez-Torralba M, Angeles Garcia M, Santa Maria D, Claramunt RM, Brown SP. Weak Intermolecular CH···N Hydrogen Bonding: Determination of 13CH- 15N Hydrogen-Bond Mediated J Couplings by Solid-State NMR Spectroscopy and First-Principles Calculations. J Phys Chem A 2020; 124:560-572. [PMID: 31880451 DOI: 10.1021/acs.jpca.9b10726] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Weak hydrogen bonds are increasingly hypothesized to play key roles in a wide range of chemistry from catalysis to gelation to polymer structure. Here, 15N/13C spin-echo magic-angle spinning (MAS) solid-state nuclear magnetic resonance (NMR) experiments are applied to "view" intermolecular CH···N hydrogen bonding in two selectively labeled organic compounds, 4-[15N] cyano-4'-[13C2] ethynylbiphenyl (1) and [15N3,13C6]-2,4,6-triethynyl-1,3,5-triazine (2). The synthesis of 2-15N3,13C6 is reported here for the first time via a multistep procedure, where the key element is the reaction of [15N3]-2,4,6-trichloro-1,3,5-triazine (5) with [13C2]-[(trimethylsilyl)ethynyl]zinc chloride (8) to afford its immediate precursor [15N3,13C6]-2,4,6-tris[(trimethylsilyl)ethynyl]-1,3,5-triazine (9). Experimentally determined hydrogen-bond-mediated 2hJCN couplings (4.7 ± 0.4 Hz (1) and 4.1 ± 0.3 Hz (2)) are compared with density functional theory (DFT) gauge-including projector augmented wave (GIPAW) calculations, whereby species-independent coupling values 2hKCN (29.0 × 1019 kg m-2 s-2 A-2 (1) and 27.9 × 1019 kg m-2 s-2 A-2 (2)) quantitatively demonstrate the J couplings for these "weak" CH···N hydrogen bonds to be of a similar magnitude to those for conventionally observed NH···O hydrogen-bonding interactions in uracil (2hKNO: 28.1 and 36.8 × 1019 kg m-2 s-2 A-2). Moreover, the GIPAW calculations show a clear correlation between increasing 2hJCN (and 3hJCN) coupling and reducing C(H)···N and H···N hydrogen-bonding distances, with the Fermi contact term accounting for at least 98% of the isotropic 2hJCN coupling.
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Affiliation(s)
- Amy L Webber
- Department of Physics , University of Warwick , Coventry CV4 7AL , U.K
| | - Jonathan R Yates
- Department of Materials , University of Oxford , Parks Road , Oxford OX1 3PH , U.K
| | - Miri Zilka
- Department of Physics , University of Warwick , Coventry CV4 7AL , U.K
| | - Simone Sturniolo
- Scientific Computing Department , Rutherford Appleton Laboratory , Chilton, Didcot , Oxfordshire OX11 0QX , U.K
| | - Anne-Christine Uldry
- Department for Biomedical Research , University of Bern , Freiburgstrasse 15 , Bern 3010 , Switzerland
| | - Emily K Corlett
- Department of Physics , University of Warwick , Coventry CV4 7AL , U.K
| | - Chris J Pickard
- Department of Materials Science and Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , U.K.,Advanced Institute for Materials Research , Tohoku University 2-1-1 Katahira , Aoba, Sendai 980-8577 , Japan
| | - Marta Pérez-Torralba
- Departamento de Química Orgánica y Bio-Orgánica , Facultad de Ciencias, UNED , Senda del Rey 9 , Madrid E-28040 , Spain
| | - M Angeles Garcia
- Departamento de Química Orgánica y Bio-Orgánica , Facultad de Ciencias, UNED , Senda del Rey 9 , Madrid E-28040 , Spain
| | - Dolores Santa Maria
- Departamento de Química Orgánica y Bio-Orgánica , Facultad de Ciencias, UNED , Senda del Rey 9 , Madrid E-28040 , Spain
| | - Rosa M Claramunt
- Departamento de Química Orgánica y Bio-Orgánica , Facultad de Ciencias, UNED , Senda del Rey 9 , Madrid E-28040 , Spain
| | - Steven P Brown
- Department of Physics , University of Warwick , Coventry CV4 7AL , U.K
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12
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Veljković IS, Veljković DŽ, Sarić GG, Stanković IM, Zarić SD. What is the preferred geometry of sulfur–disulfide interactions? CrystEngComm 2020. [DOI: 10.1039/d0ce00211a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combined crystallographic and quantum chemical studies showed that in most cases, in crystal structures, interactions between sulphur atoms and disulphide bonds are bifurcated.
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Affiliation(s)
- Ivana S. Veljković
- Institute of Chemistry, Technology and Metallurgy
- University of Belgrade
- 11000 Belgrade
- Serbia
| | | | | | - Ivana M. Stanković
- Institute of Chemistry, Technology and Metallurgy
- University of Belgrade
- 11000 Belgrade
- Serbia
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de Paula RLG, Duarte VS, Fernandes FS, Vaz WF, Ribeiro IN, Osório FAP, Valverde C, Oliveira GR, Napolitano HB. A Comprehensive Topological Analysis on a New Bromine-Chalcone with Potential Nonlinear Optical Properties. J Phys Chem A 2019; 123:8632-8643. [DOI: 10.1021/acs.jpca.9b06066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Renata Layse G. de Paula
- Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, 75132-40 Anápolis, Goiás, Brazil
| | - Vitor S. Duarte
- Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, 75132-40 Anápolis, Goiás, Brazil
- Centro de Pesquisa e Eficiência Energética, CAOA Montadora de Veículos- LTDA, 75184-000 Anápolis, Goiás, Brazil
| | - Fernanda S. Fernandes
- Instituto de Química, Universidade Federal de Goiás, 74001-970 Goiânia, Goiás, Brazil
| | - Wesley F. Vaz
- Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, 75132-40 Anápolis, Goiás, Brazil
| | - Italo N. Ribeiro
- Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, 75132-40 Anápolis, Goiás, Brazil
| | - Francisco A. P. Osório
- Instituto de Física, Universidade Federal de Goiás, 74690-900 Goiânia, Goiás, Brazil
- Pontifícia Universidade Católica de Goiás, 74175-120 Goiânia, Goiás, Brazil
| | - Clodoaldo Valverde
- Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, 75132-40 Anápolis, Goiás, Brazil
- Laboratório de Modelagem Molecular Aplicada e Simulação, Universidade Paulista, 74845-090 Goiânia, Goiás, Brazil
| | - Guilherme R. Oliveira
- Instituto de Química, Universidade Federal de Goiás, 74001-970 Goiânia, Goiás, Brazil
| | - Hamilton B. Napolitano
- Campus de Ciências Exatas e Tecnológicas, Universidade Estadual de Goiás, 75132-40 Anápolis, Goiás, Brazil
- Laboratório de Novos Materiais, Centro Universitário de Anápolis, 75075-010 Anápolis, Goiás, Brazil
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14
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Taylor R, Wood PA. A Million Crystal Structures: The Whole Is Greater than the Sum of Its Parts. Chem Rev 2019; 119:9427-9477. [PMID: 31244003 DOI: 10.1021/acs.chemrev.9b00155] [Citation(s) in RCA: 134] [Impact Index Per Article: 26.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The founding in 1965 of what is now called the Cambridge Structural Database (CSD) has reaped dividends in numerous and diverse areas of chemical research. Each of the million or so crystal structures in the database was solved for its own particular reason, but collected together, the structures can be reused to address a multitude of new problems. In this Review, which is focused mainly on the last 10 years, we chronicle the contribution of the CSD to research into molecular geometries, molecular interactions, and molecular assemblies and demonstrate its value in the design of biologically active molecules and the solid forms in which they are delivered. Its potential in other commercially relevant areas is described, including gas storage and delivery, thin films, and (opto)electronics. The CSD also aids the solution of new crystal structures. Because no scientific instrument is without shortcomings, the limitations of CSD research are assessed. We emphasize the importance of maintaining database quality: notwithstanding the arrival of big data and machine learning, it remains perilous to ignore the principle of garbage in, garbage out. Finally, we explain why the CSD must evolve with the world around it to ensure it remains fit for purpose in the years ahead.
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Affiliation(s)
- Robin Taylor
- Cambridge Crystallographic Data Centre , 12 Union Road , Cambridge CB2 1EZ , United Kingdom
| | - Peter A Wood
- Cambridge Crystallographic Data Centre , 12 Union Road , Cambridge CB2 1EZ , United Kingdom
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15
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Angnes RA, Thompson LM, Mashuta MS, Correia CRD, Hammond GB. Non‐Covalent Substrate Directed Enantioselective Heck Desymmetrization of
cis
‐Cyclohex‐4‐ene‐1,2‐diol: Synthesis of all
cis
Chiral 5‐Aryl‐cyclohex‐3‐ene‐1,2‐diols and Mechanistic Investigation. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800785] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ricardo A. Angnes
- Chemistry Department University of Louisville 40292-0001 Louisville, KY USA
- Chemistry Department University of Campinas, C.P. 6154, CEP. 13083-970 Campinas, SP Brazil
| | - Lee M. Thompson
- Chemistry Department University of Louisville 40292-0001 Louisville, KY USA
| | - Mark S. Mashuta
- Chemistry Department University of Louisville 40292-0001 Louisville, KY USA
| | - Carlos R. D. Correia
- Chemistry Department University of Campinas, C.P. 6154, CEP. 13083-970 Campinas, SP Brazil
| | - Gerald B. Hammond
- Chemistry Department University of Louisville 40292-0001 Louisville, KY USA
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16
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Vibhute AM, Deva Priyakumar U, Ravi A, Sureshan KM. Model molecules to classify CHO hydrogen-bonds. Chem Commun (Camb) 2018; 54:4629-4632. [PMID: 29671427 DOI: 10.1039/c8cc01653d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We developed a set of conformationally locked molecules each of which makes a single CHO H-bond/short contact and has different electron density at the acceptor oxygen atom. The downfield shift of the 1H NMR signals due to the hydrogen involved in the CHO H-bond varied from 0.93-1.6 ppm, and the magnitude of Δδ is in correlation with the hybridization state of the acceptor oxygen and with the CHO H-bond strengths quantified using a computational method.
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Affiliation(s)
- Amol M Vibhute
- School of Chemistry, Indian Institute of Science Education and Research (IISER), Thiruvananthapuram, Kerala-695551, India.
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17
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Veljković DŽ. Strong CH/O interactions between polycyclic aromatic hydrocarbons and water: Influence of aromatic system size. J Mol Graph Model 2018; 80:121-125. [PMID: 29331729 DOI: 10.1016/j.jmgm.2017.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/19/2017] [Accepted: 12/21/2017] [Indexed: 10/18/2022]
Abstract
Energies of CH/O interactions between water molecule and polycyclic aromatic hydrocarbons with a different number of aromatic rings were calculated using ab initio calculations at MP2/cc-PVTZ level. Results show that an additional aromatic ring in structure of polycyclic aromatic hydrocarbons significantly strengthens CH/O interactions. Calculated interaction energies in optimized structures of the most stable tetracene/water complex is -2.27 kcal/mol, anthracene/water is -2.13 kcal/mol and naphthalene/water is -1.97 kcal/mol. These interactions are stronger than CH/O contacts in benzene/water complex (-1.44 kcal/mol) while CH/O contacts in tetracene/water complex are even stronger than CH/O contacts in pyridine/water complexes (-2.21 kcal/mol). Electrostatic potential maps for different polycyclic aromatic hydrocarbons were calculated and used to explain trends in the energies of interactions.
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Affiliation(s)
- Dušan Ž Veljković
- Department of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia.
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18
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Kwiatkowski A, Jędrzejewska B, Józefowicz M, Grela I, Ośmiałowski B. The trans/cis photoisomerization in hydrogen bonded complexes with stability controlled by substituent effects: 3-(6-aminopyridin-3-yl)acrylate case study. RSC Adv 2018; 8:23698-23710. [PMID: 35540258 PMCID: PMC9081750 DOI: 10.1039/c8ra03042a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Accepted: 06/19/2018] [Indexed: 01/29/2023] Open
Abstract
The association of aminopyridine-based acrylic acid and its salt was studied by NMR titration experiments. The AA (acceptor, acceptor) hydrogen-bonding pattern present in the salt forms a complex readily with a DD (donor, donor) hydrogen-bonding pattern of the substituted ureas even in polar and competitive environment. The double carbon–carbon bond in the acrylic acid derivative is subjected to photoisomerization. This is dependent on the association with substituted urea derivatives. The substituent in ureas influences the trans/cis isomerization kinetics and position of the photostationary state. Two mechanisms that influence the photoisomerization were proposed. To the best of our knowledge, the trans/cis photoisomerization influenced by the substituent in such a hydrogen-bonding pattern has not observed previously. It was shown that interaction with urea derivatives causes lowering of the trans-to-cis photoreaction rates. The association of aminopyridine-based acrylic acid and its salt was studied by NMR titration experiments.![]()
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Affiliation(s)
- Adam Kwiatkowski
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Beata Jędrzejewska
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Marek Józefowicz
- Faculty of Mathematics
- Physics and Informatics
- University of Gdańsk
- 80-308 Gdańsk
- Poland
| | - Izabela Grela
- Faculty of Chemical Technology and Engineering
- UTP University of Science and Technology
- PL-85326 Bydgoszcz
- Poland
| | - Borys Ośmiałowski
- Faculty of Chemistry
- Nicolaus Copernicus University in Toruń
- 87-100 Torun
- Poland
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Damron JT, Kersten KM, Pandey MK, Mroue KH, Yarava JR, Nishiyama Y, Matzger AJ, Ramamoorthy A. Electrostatic Constraints Assessed by 1H MAS NMR Illuminate Differences in Crystalline Polymorphs. J Phys Chem Lett 2017; 8:4253-4257. [PMID: 28825828 PMCID: PMC6295661 DOI: 10.1021/acs.jpclett.7b01650] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Atomically resolved crystal structures not only suffer from the inherent uncertainty in accurately locating H atoms but also are incapable of fully revealing the underlying forces enabling the formation of final structures. Therefore, the development and application of novel techniques to illuminate intermolecular forces in crystalline solids are highly relevant to understand the role of hydrogen atoms in structure adoption. Novel developments in 1H NMR MAS methodology can now achieve robust measurements of 1H chemical shift anisotropy (CSA) tensors which are highly sensitive to electrostatics. Herein, we use 1H CSA tensors, measured by MAS experiments and characterized using DFT calculations, to reveal the structure-driving factors between the two polymorphic forms of acetaminophen (aka Tylenol or paracetamol) including differences in hydrogen bonding and the role of aromatic interactions. We demonstrate how the 1H CSAs can provide additional insights into the static picture provided by diffraction to elucidate rigid molecules.
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Affiliation(s)
- Joshua T. Damron
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | - Kortney M. Kersten
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
| | - Manoj Kumar Pandey
- RIKEN CLST-JEOL Collaboration Center, RIKEN, Yokohama, Kanagawa 230-0045, Japan
| | - Kamal H. Mroue
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
- Biophysics Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
| | | | - Yusuke Nishiyama
- RIKEN CLST-JEOL Collaboration Center, RIKEN, Yokohama, Kanagawa 230-0045, Japan
- JEOL RESONANCE, Inc., Musashino, Akishima, Tokyo 186-8558, Japan
| | - Adam J. Matzger
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
- Macromolecular Science and Engineering, University of Michigan, 2300 Hayward Avenue, Ann Arbor, Michigan 48109, United States
- Corresponding Authors: .
| | - Ayyalusamy Ramamoorthy
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055, United States
- Biophysics Program, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109, United States
- Corresponding Authors: .
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20
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Mononuclear, tetranuclear and polymeric cadmium(II) complexes with the 3,6-bis(2-pyridyl)-1,2,4,5-tetrazine ligand: Synthesis, crystal structure, spectroscopic and DFT studies. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.08.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Zong Y, Shao H, Pang Y, Wang D, Liu K, Wang L. Multicomponent hydrogen-bonding organic solids constructed from 6-hydroxy-2-naphthoic acid and N-heterocycles: Synthesis, structural characterization and synthon discussion. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.095] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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22
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Investigations on the role of CH…O interactions and its impact on stability and specificity of penicillin binding proteins. Comput Biol Med 2015; 65:85-92. [DOI: 10.1016/j.compbiomed.2015.07.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Revised: 07/09/2015] [Accepted: 07/31/2015] [Indexed: 11/22/2022]
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23
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Mitoraj MP, Janjić GV, Medaković VB, Veljković DŽ, Michalak A, Zarić SD, Milčić MK. Nature of the water/aromatic parallel alignment interactions. J Comput Chem 2014; 36:171-80. [DOI: 10.1002/jcc.23783] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 10/05/2014] [Accepted: 10/17/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Mariusz P. Mitoraj
- Faculty of Chemistry; Department of Theoretical Chemistry; Jagiellonian University; R. Ingardena 3, 30-060 Krakow Poland
| | - Goran V. Janjić
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade; Njegoševa 12 11000 Belgrade Serbia
| | - Vesna B. Medaković
- Department of Chemistry; University of Belgrade; Studentski trg 12-16 11000 Belgrade Serbia
| | - Dušan Ž. Veljković
- Department of Chemistry; University of Belgrade; Studentski trg 12-16 11000 Belgrade Serbia
| | - Artur Michalak
- Faculty of Chemistry; Department of Theoretical Chemistry; Jagiellonian University; R. Ingardena 3, 30-060 Krakow Poland
| | - Snežana D. Zarić
- Department of Chemistry; University of Belgrade; Studentski trg 12-16 11000 Belgrade Serbia
- Department of Chemistry; Texas A & M University at Qatar; P.O. Box 23874 Doha Qatar
| | - Miloš K. Milčić
- Department of Chemistry; University of Belgrade; Studentski trg 12-16 11000 Belgrade Serbia
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24
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Chen J, Campos J, Mercado BQ, Crabtree RH, Balcells D. Distortional Effects of Noncovalent Interactions in the Crystal Lattice of a Cp*Ir(III) Acylhydroxamic Acid Complex: A Joint Experimental–Computational Study. Organometallics 2014. [DOI: 10.1021/om500625c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeffrey Chen
- Department
of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Jesús Campos
- Department
of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Brandon Q. Mercado
- Department
of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - Robert H. Crabtree
- Department
of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
| | - David Balcells
- Centre
of Excellence for Theoretical and Computational Chemistry (CTCC),
Department of Chemistry, University of Oslo, Oslo, 0315 Norway
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25
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Veljković DŽ, Medaković VB, Andrić JM, Zarić SD. C–H/O interactions of nucleic bases with a water molecule: a crystallographic and quantum chemical study. CrystEngComm 2014. [DOI: 10.1039/c4ce00595c] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The C–H/O interactions of nucleic bases are substantially stronger than the C–H/O interactions of benzene and pyridine. These results can be very important for molecular recognition of DNA and RNA.
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Affiliation(s)
- D. Ž. Veljković
- Department of Chemistry
- University of Belgrade
- 11000 Belgrade, Serbia
| | - V. B. Medaković
- Department of Chemistry
- University of Belgrade
- 11000 Belgrade, Serbia
| | - J. M. Andrić
- Innovation Center
- Department of Chemistry
- 11000 Belgrade, Serbia
| | - S. D. Zarić
- Department of Chemistry
- University of Belgrade
- 11000 Belgrade, Serbia
- Department of Chemistry
- Texas A&M University at Qatar
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