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Oxalic Acid, a Versatile Coformer for Multicomponent Forms with 9-Ethyladenine. CRYSTALS 2022. [DOI: 10.3390/cryst12010089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
Six new multicomponent solids of 9-ethyladenine and oxalic acid have been detected and characterized. The salt screening has been performed by mechanochemical and solvent crystallization processes. Single crystals of the anhydrous salts in 1:1 and 2:1 nucleobase:coformer molar ratio were obtained by solution crystallization and elucidated by single-crystal X-ray analysis. The supramolecular interactions observed in these solids have been studied using density functional theory (DFT) calculations and characterized by the quantum theory of “atoms in molecules” (QTAIM) and the noncovalent interaction plot (NCIPlot) index methods. The energies of the H-bonding networks observed in the solid state of the anhydrous salts in 1:1 and 2:1 nucleobase:coformer are reported, disclosing the strong nature of the charge assisted NH···O hydrogen bonds and also the relative importance of ancillary C–H··O H-bonds.
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García-Raso A, Terrón A, Fiol JJ, López-Zafra A, Massanet B, Frontera A, Barceló-Oliver M. Modified-amino acid/peptide pyrimidine analogs: synthesis, structural characterization and DFT studies of N-(pyrimidyl)gabapentine and N-(pyrimidyl)baclofen. NEW J CHEM 2021. [DOI: 10.1039/d1nj04639j] [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
H-Bonding networks and π–π and halogen bonding interactions in the crystal structures of N-modified amino acid pyrimidine analogs are investigated using DFT calculations and X-ray crystallography analysis.
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Affiliation(s)
- Angel García-Raso
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Angel Terrón
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Juan J. Fiol
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Adela López-Zafra
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Bárbara Massanet
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
| | - Miquel Barceló-Oliver
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma, Baleares, Spain
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Mahmoudi G, Kubicki M, Choquesillo-Lazarte D, Miroslaw B, Alexandrov EV, Zolotarev PN, Frontera A, Safin DA. Supramolecular architectures of Mn(NCS)2 complexes with N'-(1-(pyridin-4-yl)ethylidene)picolinohydrazide and N'-(phenyl(pyridin-4-yl)methylene)isonicotinohydrazide. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114776] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4
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Thakur S, Gil DM, Frontera A, Chattopadhyay S. Exploration of Br⋯O halogen bonding interactions in dinuclear vanadium(V) complexes with Schiff base ligands. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114676] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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Goswami S, Singha S, Saha I, Chatterjee A, Dey SK, Gómez García CJ, Frontera A, Kumar S, Saha R. Selective Metal-Ligand Bond-Breaking Driven by Weak Intermolecular Interactions: From Metamagnetic Mn(III)-Monomer to Hexacyanoferrate(II)-Bridged Metamagnetic Mn 2Fe Trimer. Inorg Chem 2020; 59:8487-8497. [PMID: 32462868 DOI: 10.1021/acs.inorgchem.0c00909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal-ligand coordination interactions are usually much stronger than weak intermolecular interactions. Nevertheless, here, we show experimental evidence and theoretical confirmation of a very rare example where metal-ligand bonds dissociate in an irreversible way, helped by a large number of weak intermolecular interactions that surpass the energy of the metal-ligand bond. Thus, we describe the design and synthesis of trinuclear Mn2Fe complex {[Mn(L)(H2O)]2Fe(CN)6},2- starting from a mononuclear Mn(III)-Schiff base complex: [Mn(L)(H2O)Cl] (1) and [Fe(CN)6]4- anions. This reaction implies the dissociation of Mn(III)-Cl coordination bonds and the formation of Mn(III)-NC bonds with the help of several intermolecular interactions. Here, we present the synthesis, crystal structure, and magnetic characterization of the monomeric Mn(III) complex [Mn(L)(H2O)Cl] (1) and of compound (H3O)[Mn(L)(H2O)2]{[Mn(L)(H2O)]2Fe(CN)6}·4H2O (2) (H2L = 2,2'-((1E,1'E)-(ethane-1,2-diylbis(azaneylylidene))bis(methaneylylidene))bis(4-methoxyphenol)). Complex 1 is a monomer where the Schiff base ligand (L) is coordinated to the four equatorial positions of the Mn(III) center with a H2O molecule and a Cl- ion at the axial sites and the monomeric units are assembled by π-π and hydrogen-bonding interactions to build supramolecular dimers. The combination of [Fe(CN)6]4- with complex 1 leads to the formation of linear Mn-NC-Fe-CN-Mn trimers where two trans cyano groups of the [Fe(CN)6]4- anion replace the labile chloride from the coordination sphere of two [Mn(L)(H2O)Cl] complexes, giving rise to the linear anionic {[Mn(L)(H2O)]2Fe(CN)6}2- trimer. This Mn2Fe trimer crystallizes with an oxonium cation and a mononuclear [Mn(L)(H2O)2]+ cation, closely related to the precursor neutral complex [Mn(L)(H2O)Cl]. In compound 2, the Mn2Fe trimers are assembled by several hydrogen-bonding and π-π interactions to frame an extended structure similar to that of complex 1. Density functional theoretical (DFT) calculations at the PBE1PBE-D3/def2-TZVP level show that the bond dissociation energy (-29.3 kcal/mol) for the Mn(III)-Cl bond is smaller than the summation of all the weak intermolecular interactions (-30.1 kcal/mol). Variable-temperature magnetic studies imply the existence of weak intermolecular antiferromagnetic couplings in both compounds, which can be can cancelled with a critical field of ca. 2.0 and 2.5 T at 2 K for compounds 1 and 2, respectively. The magnetic properties of compound 1 have been fit with a simple S = 2 monomer with g = 1.959, a weak zero-field splitting (|D| = 1.23 cm-1), and a very weak intermolecular interaction (zJ = -0.03 cm-1). For compound 2, we have used a model with an S = 2 monomer with ZFS plus an S = 2 antiferromagnetically coupled dimer with g = 2.009, |D| = 1.21 cm-1, and J = -0.42 cm-1. The metamagnetic behavior of both compounds is attributed to the weak intermolecular π-π and hydrogen-bonding interactions.
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Affiliation(s)
- Somen Goswami
- Department of Physics, Jadavpur University, Jadavpur, Kolkata-700032, India
| | - Soumen Singha
- Department of Physics, Jadavpur University, Jadavpur, Kolkata-700032, India
| | - Indrajit Saha
- Department of Chemistry, RKMRC, Narendrapur-700103, WB, India
| | | | - Subrata K Dey
- Department of Chemistry, Sidho-Kanho-Birsha University, Pururlia-723104, WB, India
| | - Carlos J Gómez García
- Departamento de Química Inorgánica, CMol. Universidad de Valencia, C/José Beltrán, 2, 46980 Paterna (Valencia), Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, Crta. de Valldemossa km 7.5, 07122 Palma de Mallorca (Baleares), Spain
| | - Sanjay Kumar
- Department of Physics, Jadavpur University, Jadavpur, Kolkata-700032, India
| | - Rajat Saha
- Department of Physics, Jadavpur University, Jadavpur, Kolkata-700032, India.,Department of Chemistry, Kazi Nazrul University, Asansol-713340, WB, India
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Martínez D, Pérez A, Cañellas S, Silió I, Lancho A, García-Raso A, Fiol JJ, Terrón A, Barceló-Oliver M, Ortega-Castro J, Molins E, Frontera A. Synthesis, reactivity, X-ray characterization and docking studies of N7/N9-(2-pyrimidyl)-adenine derivatives. J Inorg Biochem 2020; 203:110879. [DOI: 10.1016/j.jinorgbio.2019.110879] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 09/23/2019] [Accepted: 10/02/2019] [Indexed: 11/15/2022]
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7
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Iridium(III) coordination of N(6) modified adenine derivatives with aminoacid chains. J Inorg Biochem 2020; 205:111000. [PMID: 31982811 DOI: 10.1016/j.jinorgbio.2020.111000] [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: 07/11/2019] [Revised: 01/14/2020] [Accepted: 01/17/2020] [Indexed: 12/30/2022]
Abstract
In this manuscript we report the preparation of three N6-aminoacid-adenine-derivatives: N-(7H-purin-6-yl)glycine·0.5H2O (N6-GlyAde), N-(7H-purin-6-yl)-β-alanine·1.5H2O (N6-β-AlaAde) and N-(7H-purin-6-yl)-γ-aminobutyric·2H2O (N6-GabaAde) and the synthesis and X-ray characterization of three Ir(III) NAMI-A derivatives (NAMI-A is [imidazoleH][trans-RuIIICl4(DMSO-κS)(imidazole)]) [trans-IrIIICl4(DMSO-κS)(N3-H)-(7H-purin-6-yl)glycine-κN9] (1), [trans-IrIIICl4(DMSO-κS)(N3-H)-(7H-purin-6-yl)-β-alanine-κN9] hydrate (2) and [trans-IrIIICl4(DMSO-κS)(N3-H)-(7H-purin-6-yl)-γ-aminobutyryl-κN9] (3). In all complexes the metal center shows octahedral geometry with coordination to four chlorido ligands and one S coordinated dimethylsulfoxide (DMSO-κS). The coordination sphere of the metal is completed by the modified adenine molecule which is bound via N(9) and protonated at N(3). In two complexes the importance of lone pair (lp)-π interactions involving the adenine ring have been studied using density functional theory (DFT) calculations and the Bader's theory of atoms in molecules. Furthermore, the ability of complexes (1-3) to affect the cell viability was evaluated against three different cancer cell lines: human lung carcinoma cells (A549), human cervical carcinoma cells (HeLa) and human breast cancer cells (MCF7). We have also analyzed their ability to cleave the DNA experimentally and their affinity for two models of DNA has been studied using molecular docking simulations.
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García-Raso A, Terrón A, Balle B, López-Zafra A, Frontera A, Barceló-Oliver M, Fiol JJ. Crystal structures of N6-modified-amino acid nucleobase analogs( iii): adenine–valeric acid, adenine–hexanoic acid and adenine–gabapentine. NEW J CHEM 2020. [DOI: 10.1039/d0nj02538k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
H-bonding networks, anion–π and π–π interactions in the crystal structures of N6-modified-amino acid adenine analogs are investigated by means of DFT calculations and X-ray crystallography analysis.
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Affiliation(s)
- Angel García-Raso
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Angel Terrón
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Bartomeu Balle
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Adela López-Zafra
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
| | | | - Juan J. Fiol
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma
- Spain
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9
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Bhattacharyya MK, Saha U, Dutta D, Frontera A, Verma AK, Sharma P, Das A. Unconventional DNA-relevant π-stacked hydrogen bonded arrays involving supramolecular guest benzoate dimers and cooperative anion–π/π–π/π–anion contacts in coordination compounds of Co(ii) and Zn(ii) phenanthroline: experimental and theoretical studies. NEW J CHEM 2020. [DOI: 10.1039/c9nj05727g] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antiproliferative evaluation and supramolecular assemblies of Co(ii) and Zn(ii) coordination compounds involving cooperative anion–π and unconventional DNA-relevant π-stacked hydrogen bonded arrays.
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Affiliation(s)
| | - Utpal Saha
- Department of Chemistry
- Cotton University
- Guwahati 781001
- India
| | - Debajit Dutta
- Department of Chemistry
- Cotton University
- Guwahati 781001
- India
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- Crta de Valldemossa km 7.7
- 07122 Palma de Mallorca (Baleares)
- Spain
| | - Akalesh K. Verma
- Department of Zoology
- Cell & Biochemical Technology Laboratory
- Cotton University
- Guwahati-781001
- India
| | - Pranay Sharma
- Department of Chemistry
- Cotton University
- Guwahati 781001
- India
| | - Amal Das
- Department of Chemistry
- Cotton University
- Guwahati 781001
- India
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Akbari Afkhami F, Mahmoudi G, Miroslaw B, Qu F, Gupta A, Frontera A, Zubkov FI, Zangrando E, Safin DA. Complexes of BiCl3 with hydrazone derived ligands: a Möbius-like discrete metal chelate versus a salt-like porous polymeric structure. NEW J CHEM 2020. [DOI: 10.1039/d0nj00930j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of BiCl3 with hydrazone derived ligands yielded a new Möbius-like discrete metal chelate [Bi(LI)Cl3] and a salt-like porous polymeric structure ([H2LII]2[BiCl5]·EtOH)n.
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Affiliation(s)
- Farhad Akbari Afkhami
- Department of Chemistry
- The University of Alabama
- Box 870336, 250 Hackberry Lane
- Tuscaloosa
- USA
| | - Ghodrat Mahmoudi
- Department of Chemistry, Faculty of Science
- University of Maragheh
- Maragheh
- Iran
| | - Barbara Miroslaw
- Department of General and Coordination Chemistry and Crystallography
- Institute of Chemical Sciences
- Faculty of Chemistry
- Maria Curie-Sklodowska University in Lublin
- 20-031 Lublin
| | - Fengrui Qu
- Department of Chemistry
- The University of Alabama
- Box 870336, 250 Hackberry Lane
- Tuscaloosa
- USA
| | - Arunava Gupta
- Department of Chemistry
- The University of Alabama
- Box 870336, 250 Hackberry Lane
- Tuscaloosa
- USA
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears
- Crta de Valldemossa km 7.5
- 07122 Palma de Mallorca
- Spain
| | - Fedor I. Zubkov
- Organic Chemistry Department, Faculty of Science
- Peoples' Friendship University of Russia (RUDN University)
- 6 Miklukho-Maklaya St
- Moscow
- Russian Federation
| | - Ennio Zangrando
- Department of Chemical and Pharmaceutical Sciences
- University of Trieste
- Via L. Giorgieri 1
- Trieste
- Italy
| | - Damir A. Safin
- University of Tyumen, Volodarskogo Str. 6
- 625003 Tyumen
- Russian Federation
- West-Siberian interregional scientific and educational center
- Russian Federation
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Alvarez-Lorenzo C, Castiñeiras A, Frontera A, García-Santos I, González-Pérez JM, Niclós-Gutiérrez J, Rodríguez-González I, Vílchez-Rodríguez E, Zaręba JK. Recurrent motifs in pharmaceutical cocrystals involving glycolic acid: X-ray characterization, Hirshfeld surface analysis and DFT calculations. CrystEngComm 2020. [DOI: 10.1039/d0ce01064b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Crystallization studies on some pyridinecarboxamides and methylated xanthines with glycolic acid as coformer, were carried out on formation of synthons and their influence on stability and solubility, the energy landscape and stabilization energies.
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Affiliation(s)
- C. Alvarez-Lorenzo
- Department of Pharmacy and Pharmaceutical Technology
- Faculty of Pharmacy
- University of Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - A. Castiñeiras
- Department of Inorganic Chemistry
- Faculty of Pharmacy
- University of Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - A. Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma de Mallorca
- Spain
| | - I. García-Santos
- Department of Inorganic Chemistry
- Faculty of Pharmacy
- University of Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - J. M. González-Pérez
- Department of Inorganic Chemistry
- Faculty of Pharmacy
- University of Granada
- 18071 Granada
- Spain
| | - J. Niclós-Gutiérrez
- Department of Inorganic Chemistry
- Faculty of Pharmacy
- University of Granada
- 18071 Granada
- Spain
| | - I. Rodríguez-González
- Department of Inorganic Chemistry
- Faculty of Pharmacy
- University of Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - E. Vílchez-Rodríguez
- Department of Inorganic Chemistry
- Faculty of Pharmacy
- University of Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - J. K. Zaręba
- Advanced Materials Engineering and Modelling Group
- Wrocław University of Science and Technology
- Wrocław
- Poland
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