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Jędrzejowska K, Kobylarczyk J, Tabor D, Srebro-Hooper M, Kumar K, Li G, Stefanczyk O, Muzioł TM, Dziedzic-Kocurek K, Ohkoshi SI, Podgajny R. Nonlinear and Emissive {[M III(CN) 6] 3-···Polyresorcinol} (M = Fe, Co, Cr) Cocrystals Exhibiting an Ultralow Frequency Raman Response. Inorg Chem 2024; 63:1803-1815. [PMID: 38109502 PMCID: PMC10828991 DOI: 10.1021/acs.inorgchem.3c03153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/16/2023] [Accepted: 11/23/2023] [Indexed: 12/20/2023]
Abstract
Optically active functional noncentrosymmetric architectures might be achieved through the combination of molecules with inscribed optical responses and species of dedicated tectonic character. Herein, we present the new series of noncentrosymmetric cocrystal salt solvates (PPh4)3[M(CN)6](L)n·msolv (M = Cr(III), Fe(III), Co(III); L = polyresorcinol coformers, multiple hydrogen bond donors: 3,3',5,5'-tetrahydroxy-1,19-biphenyl, DiR, n = 2, or 5'-(3,5-dihydroxyphenyl)-3,3″,5,5″-tetrahydroxy-1,19:3',1″-terphenyl, TriRB, n = 1) denoted as MDiR and MTriRB, respectively. The hydrogen-bonded subnetworks {[M(CN)6]3-;Ln}∞ of dmp, neb, or dia topology are formed through structural matching between building blocks within supramolecular cis-bis(chelate)-like {[M(CN)6]3-;(H2L)2(HL)2} or tris(chelate)-like {[M(CN)6]3-;(H2L)3} fragments. The quantum-chemical analysis demonstrates the mixed electrostatic and covalent character of these interactions, with their strength clearly enhanced due to the negative charge of the hydrogen bond acceptor metal complex. The corresponding interaction energy is also dependent on the geometry of the contact and size matching of its components, rotational degree of freedom and extent of the π-electron system of the coformer, and overall fit to the molecular surroundings. Symmetry of the crystal lattices is correlated with the local symmetry of coformers and {complex;(coformer)n} hydrogen-bonded motifs characterized by the absence of the inversion center and mirror plane. All compounds reveal second-harmonic generation activity and photoluminescence diversified by individual UV-vis spectral characteristics of the components, and interesting low-frequency Raman scattering spectra within the subterahertz spectroscopic domain. Vibrational (infrared/Raman), UV-vis electronic absorption (experimental and calculated), and 57Fe Mössbauer spectra together with electrospray ionization mass spectrometry (ESI-MS) data are provided for the complete description of our systems.
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Affiliation(s)
- Katarzyna Jędrzejowska
- Faculty of
Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Kraków, Poland
- Doctoral
School of Exact and Natural Sciences, Jagiellonian
University in Kraków, Prof. St. Łojasiewicza 11, 30-348 Kraków, Poland
| | | | - Dominika Tabor
- Faculty of
Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Kraków, Poland
| | - Monika Srebro-Hooper
- Faculty of
Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Kraków, Poland
| | - Kunal Kumar
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Guanping Li
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Olaf Stefanczyk
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tadeusz M. Muzioł
- Faculty of
Chemistry, Nicolaus Copernicus University
in Toruń, Gagarina
7, 87-100 Toruń, Poland
| | - Katarzyna Dziedzic-Kocurek
- Marian Smoluchowski
Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland
| | - Shin-ichi Ohkoshi
- Department
of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Robert Podgajny
- Faculty of
Chemistry, Jagiellonian University in Krakow, Gronostajowa 2, 30-387 Kraków, Poland
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2
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Nikol’skiy VV, Minyaev ME, Bastrakov MA, Starosotnikov AM. Nucleophilic Functionalization of 2-R-3-Nitropyridines as a Versatile Approach to Novel Fluorescent Molecules. Molecules 2022; 27:molecules27175692. [PMID: 36080461 PMCID: PMC9457606 DOI: 10.3390/molecules27175692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 08/29/2022] [Accepted: 08/31/2022] [Indexed: 11/16/2022] Open
Abstract
A number of new 2-methyl- and 2-arylvinyl-3-nitropyridines were synthesized and their reactions with thiols were studied. It was found that 3-NO2 tends to be selectively substituted under the action of sulfur nucleophiles in the presence of another nucleofuge in position 5. Correlations between the substitution pattern and regioselectivity as well as photophysical properties were established. Some synthesized compounds possessed a large Stokes shift.
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3
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Fedyanin IV. Control of supramolecular chirality in co-crystals of achiral molecules via stacking interactions and hydrogen bonding. CrystEngComm 2022. [DOI: 10.1039/d2ce00081d] [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
An approach is proposed to obtain non-centrosymmetric crystal structures using co crystallization of specific achiral molecules. The co-formers, donors and acceptors of electron density, are selected in such a way...
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4
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Cai L, Jiang L, Li C, Guan X, Zhang L, Hu X. Multicomponent Crystal of Metformin and Barbital: Design, Crystal Structure Analysis and Characterization. Molecules 2021; 26:molecules26144377. [PMID: 34299653 PMCID: PMC8306642 DOI: 10.3390/molecules26144377] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 07/16/2021] [Accepted: 07/16/2021] [Indexed: 12/03/2022] Open
Abstract
The formation of most multicomponent crystals relies on the interaction of hydrogen bonds between the components, so rational crystal design based on the expected hydrogen-bonded supramolecular synthons was employed to establish supramolecular compounds with desirable properties. This theory was put into practice for metformin to participate in more therapeutic fields to search for a fast and simple approach for the screening of candidate crystal co-formers. The prediction of intermolecular synthons facilitated the successful synthesis of a new multicomponent crystal of metformin (Met) and barbital (Bar) through an anion exchange reaction and cooling crystallization method. The single crystal X-ray diffraction analysis demonstrated the hydrogen bond-based ureide/ureide and guanidine/ureide synthons were responsible for the self-assembly of the primary structural motif and extended into infinite supramolecular heterocatemeric structures.
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Affiliation(s)
- Linhong Cai
- Department of Medicinal Chemistry, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (L.C.); (C.L.); (X.G.); (L.Z.)
| | - Lan Jiang
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China;
| | - Cong Li
- Department of Medicinal Chemistry, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (L.C.); (C.L.); (X.G.); (L.Z.)
| | - Xiaoshu Guan
- Department of Medicinal Chemistry, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (L.C.); (C.L.); (X.G.); (L.Z.)
| | - Li Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (L.C.); (C.L.); (X.G.); (L.Z.)
| | - Xiangnan Hu
- Department of Medicinal Chemistry, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China; (L.C.); (C.L.); (X.G.); (L.Z.)
- Correspondence: ; Tel.: +86-133-0836-0519
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5
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Zhang X, Kang L, Gong P, Lin Z, Wu Y. Nonlinear Optical Oxythiophosphate Approaching the Good Balance with Wide Ultraviolet Transparency, Strong Second Harmonic Effect, and Large Birefringence. Angew Chem Int Ed Engl 2021; 60:6386-6390. [DOI: 10.1002/anie.202016013] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Indexed: 02/03/2023]
Affiliation(s)
- Xinyuan Zhang
- Tianjin Key Laboratory of Functional Crystal Materials Institute of Functional Crystals Tianjin University of Technology Tianjin 300384 China
| | - Lei Kang
- Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Pifu Gong
- Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Zheshuai Lin
- Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Yicheng Wu
- Tianjin Key Laboratory of Functional Crystal Materials Institute of Functional Crystals Tianjin University of Technology Tianjin 300384 China
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6
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Zhang X, Kang L, Gong P, Lin Z, Wu Y. Nonlinear Optical Oxythiophosphate Approaching the Good Balance with Wide Ultraviolet Transparency, Strong Second Harmonic Effect, and Large Birefringence. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016013] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xinyuan Zhang
- Tianjin Key Laboratory of Functional Crystal Materials Institute of Functional Crystals Tianjin University of Technology Tianjin 300384 China
| | - Lei Kang
- Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Pifu Gong
- Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Zheshuai Lin
- Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
| | - Yicheng Wu
- Tianjin Key Laboratory of Functional Crystal Materials Institute of Functional Crystals Tianjin University of Technology Tianjin 300384 China
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Bastrakov MA, Starosotnikov AM, Fedyanin IV, Dalinger IL. Synthesis of new 2-substituted 6,8-dinitro[1,2,4]triazolo[1,5-a]pyridines. Chem Heterocycl Compd (N Y) 2021. [DOI: 10.1007/s10593-021-02873-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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8
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Ravi S, Sreedharan R, Raghi K, Manoj Kumar T, Naseema K. Studies on non-linear optical property of β polymorph of 5-nitrofurazone- a promising optical material: Experimental and quantum computational approach. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Xu WT, Liu JC, Zeng YL, Zhang H, Wang ZX. Competing hydrogen-bonding interactions in a high- Tc organic molecular-ionic crystal with evident nonlinear optical response. CrystEngComm 2021. [DOI: 10.1039/d0ce01875a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An organic molecular-ionic crystal of (TPPO–H)2SO4 exhibits moderate NLO response which is twice that of KDP and competing hydrogen-bonding interactions triggered high-Tc phase transition.
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Affiliation(s)
- Wen-Tao Xu
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Jun-Chao Liu
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Yu-Ling Zeng
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Hua Zhang
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
| | - Zhong-Xia Wang
- Ordered Matter Science Research Center
- Nanchang University
- Nanchang 330031
- People's Republic of China
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10
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Synthesis and Facile Dearomatization of Highly Electrophilic Nitroisoxazolo[4,3- b]pyridines. MOLECULES (BASEL, SWITZERLAND) 2020; 25:molecules25092194. [PMID: 32397095 PMCID: PMC7248838 DOI: 10.3390/molecules25092194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/06/2020] [Accepted: 05/07/2020] [Indexed: 11/16/2022]
Abstract
A number of novel 6-R-isoxazolo[4,3-b]pyridines were synthesized and their reactions with neutral C-nucleophiles (1,3-dicarbonyl compounds, π-excessive (het)arenes, dienes) were studied. The reaction rate was found to be dependent on the nature of the substituent 6-R. The most reactive 6-nitroisoxazolo[4,3-b]pyridines are able to add C-nucleophiles in the absence of a base under mild conditions. In addition, these compounds readily undergo [4+2]-cycloaddition reactions on aromatic bonds C=C(NO2) of the pyridine ring, thus indicating the superelectrophilic nature of 6-NO2-isoxazolo[4,3-b]pyridines.
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11
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Gryl M, Ostrowska K, Barquera-Lozada JE, Stadnicka KM. Unveiling the Impact of Aggregation on Optical Anisotropy of Triazaacephenanthrylene Single Crystals. A Combined Quantum Crystallography and Conceptual Density Functional Theory Approach. J Phys Chem A 2020; 124:2931-2941. [PMID: 32135065 PMCID: PMC7497651 DOI: 10.1021/acs.jpca.9b10651] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
Triazaacephenanthrylene
(TAAP) triclinic single crystals show substantial
optical anisotropy of absorption and fluorescence. The maximum effect
can be correlated with the direction perpendicular to the plane of
chromophores connected in a head-to-tail manner via weak dispersive
interactions. This phenomenon is uncommon as usually the existence
of postulated π···π interactions between
the molecules forming dimers or stacks cause quenching of fluorescence.
Herein we present a comprehensive study of inter- and intramolecular
interactions in the crystal of TAAP enriched with the investigation
of aromaticity. Our results show that intramolecular interactions
stabilize the overall conformation of the molecule whereas dispersive
forces determine the aggregation between TAAP molecules. In fact,
there is no conventional π···π interaction
between the molecules in the dimer. Instead, we observed a close contact
between the lone pair of the bridgehead N10B atom and π-deficient
pyrazine ring from an adjacent molecule. Optical anisotropy in TAAP
crystals was directly correlated with the alignment of the molecular
transition dipole moments caused by specific molecular self-assembly.
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Affiliation(s)
- Marlena Gryl
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Katarzyna Ostrowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jose Enrique Barquera-Lozada
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito exterior, Ciudad Universitaria Coyoacán, México, DF 04510, Mexico
| | - Katarzyna M Stadnicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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Bastrakov MA, Nikol’skiy VV, Starosotnikov AM, Fedyanin IV, Shevelev SA, Knyazev DA. Reactions of 3-R-5-nitropyridines with nucleophiles: Nucleophilic substitution vs conjugate addition. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130659] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Quertinmont J, Leyssens T, Wouters J, Champagne B. Periodic DFT Study of the Effects of Co-Crystallization on a N-Salicylideneaniline Molecular Switch. Chemphyschem 2019; 20:2434-2442. [PMID: 31424593 DOI: 10.1002/cphc.201900463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 08/16/2019] [Indexed: 12/19/2022]
Abstract
This work aims at better understanding the complex effects of co-crystallization on a single salicylideneaniline molecular switch, (E)-2-methoxy-6-(pyridine-3-yliminomethyl)phenol (PYV3), which can tautomerize between an enol and a keto form. A combination of periodic boundary conditions DFT and molecular wavefunction calculations has been adopted for examining a selection of PYV3 co-crystals, presenting hydrogen bonds (H-bonds) or halogen bonds (X-bonds), for which X-ray diffraction data are available. Three aspects are targeted: i) the energy (H-bond strength, enol to keto relative energy, and geometry relaxation energies), ii) the geometrical structure (PYV3 to co-crystal and enol to keto geometrical variations), and iii) the electron distribution (PYV3 to co-crystal and enol to keto Mulliken charge variations). These allow i) explaining the preference for forming H-bonds with the nitrogen of the pyridine of PYV3 with respect to the oxygens and the importance of the crystal field, ii) distinguishing the peculiar behavior of the SulfonylDiPhenol (SDP) coformer, which stabilizes the keto form of PYV3, iii) describing the relative stabilization of the enol form upon co-crystallization (with the exception of SDP) and therefore iv) substantiating the co-crystallization-induced reduction of thermochromism observed for several PYV3 co-crystals.
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Affiliation(s)
- Jean Quertinmont
- Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, 61 rue de Bruxelles, B-5000, Namur, Belgium
| | - Tom Leyssens
- Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, 1 Place Louis Pasteur, B-1348, Louvain-La-Neuve, Belgium
| | - Johan Wouters
- Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, 61 rue de Bruxelles, B-5000, Namur, Belgium
| | - Benoît Champagne
- Unit of Theoretical and Structural Physical Chemistry, Namur Institute of Structured Matter, University of Namur, 61 rue de Bruxelles, B-5000, Namur, Belgium
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Synthesis, spectroscopic characterization, crystal structure, Hirshfeld surface analysis and third-order nonlinear optical properties of 2-(4-chlorophenoxy)-N'-[(1E)-1-(4-methylphenyl) ethylidene] acetohydrazide. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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15
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Gryl M, Rydz A, Wojnarska J, Krawczuk A, Kozieł M, Seidler T, Ostrowska K, Marzec M, Stadnicka KM. Origin of chromic effects and crystal-to-crystal phase transition in the polymorphs of tyraminium violurate. IUCRJ 2019; 6:226-237. [PMID: 30867920 PMCID: PMC6400187 DOI: 10.1107/s2052252518017037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/30/2018] [Indexed: 06/09/2023]
Abstract
Chromic materials are nowadays widely used in various technological applications, however understanding the effect and the possibility of tuning the obtained colour of a material are still challenging. Here a combined experimental and theoretical study is presented on the solvatochromic and crystallochromic effects in the (pseudo)polymorphs of tyraminium violurate. This organic material exhibits a large solvatochromic shift (ca 192 nm) associated with broad colour change (from yellow to dark violet). Tyraminum violurate crystallizes as red crystals of form (I) from water as a solvate, and as an unsolvated form [violet crystals of (II)] from methanol solution. Form (I), when heated, undergoes two crystal-to-crystal phase transformations associated with colour change of the crystals. Crystals of (II) show extreme birefringence (ca 0.46) and high refractive index (n γ above 1.90), which can be correlated with preferential orientation of the resultant dipole moments of the ions. Examination of optical effects (UV-Vis spectra) along with theoretical calculations (QTAIM, atomic and bond polarizabilities) enabled the description of the origin of colour in the studied materials.
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Affiliation(s)
- Marlena Gryl
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Agnieszka Rydz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Joanna Wojnarska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Anna Krawczuk
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Marcin Kozieł
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Tomasz Seidler
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Katarzyna Ostrowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Monika Marzec
- Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
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Doddamani RV, Rachipudi PS, Inamdar SR, Kariduraganavar MY. Enhancement of nonlinear optical and thermal properties of polyurethanes by modifying the chromophores with fused heterocyclic and pyrimidine rings. POLYM ENG SCI 2018. [DOI: 10.1002/pen.24957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Rydz A, Gryl M, Stadnicka KM. Solvomorphs of tyraminium 5,5-diethylbarbiturate: a rare example of the barbiturate R 33(12) hydrogen-bond motif and a crystal structure with Z' = 4. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2018; 74:1586-1594. [PMID: 30516141 DOI: 10.1107/s205322961801433x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 10/11/2018] [Indexed: 11/11/2022]
Abstract
In the past two decades, the solvomorphism phenomenon in organic materials has attracted much attention, especially in the pharmaceutical and materials industries. Cocrystallization with solvent molecules can lead to modified physical and chemical properties of materials. We present here two new solvomorphs (pseudopolymorphs) of tyraminium 5,5-diethylbarbiturate [2-(4-hydroxyphenyl)ethanaminium 5,5-diethyl-2,4,6-trioxotetrahydro-2H-pyrimidin-1-ide, C8H12NO+·C8H11N2O3-] with unusual structural features. Pseudopolymorph (I) follows the symmetry of the P21/n space group and has four tyraminium cations, four barbitalate anions and four molecules of chloroform in the asymmetric unit. Pseudopolymorph (II) crystallizes in the space group R-3c with one tyraminium cation, one barbitalate anion and a small amount of disordered solvent (ethanol and water) located in the cavities. Hirshfeld surface analysis and the Non-Covalent Interaction (NCI) index were used to examine and compare the crystal packing features and intermolecular interactions in (I) and (II). Both materials crystallize with large unit cells and contain nontypical barbitalate ions formed through deprotonation of the barbital N3 position. Pseudopolymorph (I) is an example of a crystal structure with a rarely observed value of Z' = 4. Analysis of the hydrogen-bond patterns in (II) showed an unusual arrangement of three barbitalate anions in R33(12) rings, which is the first example of such a hydrogen-bond motif in barbital structures. The mutual arrangement of the ions in the crystal structure of (II) leads to the formation of specific cavities along the c direction.
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Affiliation(s)
- Agnieszka Rydz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Marlena Gryl
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
| | - Katarzyna M Stadnicka
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, Kraków 30-387, Poland
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