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Li F, Xu H, Xu X, Cang H, Xu J, Chen S. Supramolecular salts assembled by melamine and two organic hydroxyl acids: synthesis, structure, hydrogen bonds, and luminescent property. CrystEngComm 2021. [DOI: 10.1039/d0ce01647k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Two novel supramolecular salts are synthesized by melamine and organic hydroxyl carboxylic acids. The structure prediction, purity, luminescent property, and thermal stability are investigated by theoretical and experimental analysis.
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Affiliation(s)
- Fengcai Li
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Hao Xu
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Xinwei Xu
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Hui Cang
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
| | - Jiaying Xu
- State Key Laboratory of Coordination Chemistry, and
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing 210023
- People's Republic of China
| | - Song Chen
- College of Chemistry and Chemical Engineering
- Yancheng Institute of Technology
- Yancheng 224000
- PR China
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2
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Janczak J. Supramolecular solid-state architecture formed by co-crystallization of melamine and phenylacetic acid. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127833] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Synthesis of functionalized chromene and spirochromenes using l -proline-melamine as highly efficient and recyclable homogeneous catalyst at room temperature. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.09.060] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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4
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Maity M, Maitra U. Supramolecular Gels from Conjugates of Bile Acids and Amino Acids and Their Applications. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601616] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Mitasree Maity
- Department of Organic Chemistry; Indian Institute of Science; 560012 Bangalore Karnataka India
| | - Uday Maitra
- Department of Organic Chemistry; Indian Institute of Science; 560012 Bangalore Karnataka India
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Tatikonda R, Bertula K, Nonappa, Hietala S, Rissanen K, Haukka M. Bipyridine based metallogels: an unprecedented difference in photochemical and chemical reduction in the in situ nanoparticle formation. Dalton Trans 2017; 46:2793-2802. [PMID: 28174774 PMCID: PMC5777448 DOI: 10.1039/c6dt04253h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 02/02/2017] [Indexed: 12/19/2022]
Abstract
Metal co-ordination induced supramolecular gelation of low molecular weight organic ligands is a rapidly expanding area of research due to the potential in creating hierarchically self-assembled multi-stimuli responsive materials. In this context, structurally simple O-methylpyridine derivatives of 4,4'-dihydroxy-2,2'-bipyridine ligands are reported. Upon complexation with Ag(i) ions in aqueous dimethyl sulfoxide (DMSO) solutions the ligands spontaneously form metallosupramolecular gels at concentrations as low as 0.6 w/v%. The metal ions induce the self-assembly of three dimensional (3D) fibrillar networks followed by the spontaneous in situ reduction of the Ag-centers to silver nanoparticles (AgNPs) when exposed to daylight. Significant size and morphological differences of the AgNP's was observed between the standard chemical and photochemical reduction of the metallogels. The gelation ability, the nanoparticle formation and rheological properties were found to be depend on the ligand structure, while the strength of the gels is affected by the water content of the gels.
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Affiliation(s)
- Rajendhraprasad Tatikonda
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P. O. Box 35, FI-40014, Jyväskylä, Finland.
| | - Kia Bertula
- Department of Applied Physics, Molecular Materials Group, Aalto University School of Science, Puumiehenkuja 2, FI-02150, Espoo, Finland
| | - Nonappa
- Department of Applied Physics, Molecular Materials Group, Aalto University School of Science, Puumiehenkuja 2, FI-02150, Espoo, Finland
| | - Sami Hietala
- Department of Chemistry, University of Helsinki, P. O. Box 55, FI-00014, Helsinki, Finland
| | - Kari Rissanen
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P. O. Box 35, FI-40014, Jyväskylä, Finland.
| | - Matti Haukka
- Department of Chemistry, Nanoscience Center, University of Jyväskylä, P. O. Box 35, FI-40014, Jyväskylä, Finland.
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6
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Nonappa, Kolehmainen E. Solid state NMR studies of gels derived from low molecular mass gelators. SOFT MATTER 2016; 12:6015-26. [PMID: 27374054 PMCID: PMC5322468 DOI: 10.1039/c6sm00969g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Accepted: 06/16/2016] [Indexed: 06/06/2023]
Abstract
Since its invention more than six decades ago, nuclear magnetic resonance (NMR) spectroscopy has evolved as an inevitable part of chemical as well as structural analysis of small molecules, polymers, biomaterials and hybrid materials. In the solution state, due to the increased viscosity of complex viscoelastic fluids such as gels, liquid crystals and other soft materials, the rate of molecular tumbling is reduced, which in turn affects the chemical shift anisotropy, dipolar and quadrupolar interactions. As a consequence the solution state NMR spectra show broad lines, and therefore, extracting detailed structural information is a challenging task. In this context, solid state (SS) NMR has the ability to distinguish between a minute amount of polymorphic forms, conformational changes, and the number of non-equivalent molecules in an asymmetric unit of a crystal lattice, and to provide both qualitative as well as quantitative analytical data with a short-range order. Therefore, SS NMR has continued to evolve as an indispensable tool for structural analysis and gave birth to a new field called NMR crystallography. Solid state cross polarization (CP) and high resolution (HR) magic angle spinning (MAS) NMR spectroscopy has been used to study weak interactions in polymer gels. However, the application of SS NMR spectroscopy to study gels derived from low molecular weight gelators has been limited until recently. In this review, we will focus on the importance of solid state NMR spectroscopy in understanding and elucidating the structure of supramolecular gels derived from low molecular weight gelators with selected examples.
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Affiliation(s)
- Nonappa
- Department of Applied Physics, Aalto University School of Science, Puumiehenkuja 2, Espoo, FI-02150, Finland.
| | - E Kolehmainen
- Department of Chemistry, University of Jyväskylä, Jyväskylä, FI-41004, Finland.
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Kuosmanen R, Puttreddy R, Willman RM, Äijäläinen I, Galandáková A, Ulrichová J, Salo H, Rissanen K, Sievänen E. Biocompatible hydrogelators based on bile acid ethyl amides. Steroids 2016; 108:7-16. [PMID: 26905616 DOI: 10.1016/j.steroids.2016.02.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/15/2016] [Accepted: 02/18/2016] [Indexed: 12/12/2022]
Abstract
Four novel bile acid ethyl amides were synthetized using a well-known method. All the four compounds were characterized by IR, SEM, and X-ray crystal analyses. In addition, the cytotoxicity of the compounds was tested. Two of the prepared compounds formed organogels. Lithocholic acid derivative 1 formed hydrogels as 1% and 2% (w/v) in four different aqueous solutions. This is very intriguing regarding possible uses in biomedicine.
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Affiliation(s)
- Riikka Kuosmanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Rakesh Puttreddy
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Roosa-Maria Willman
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Ilkka Äijäläinen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Adéla Galandáková
- Palacký University in Olomouc, Department of Medical Chemistry and Biochemistry, Hněvotínská 3, CZ-775 15 Olomouc, Czech Republic
| | - Jitka Ulrichová
- Palacký University in Olomouc, Department of Medical Chemistry and Biochemistry, Hněvotínská 3, CZ-775 15 Olomouc, Czech Republic
| | - Hannu Salo
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Kari Rissanen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland
| | - Elina Sievänen
- University of Jyvaskyla, Department of Chemistry, P.O. Box 35, FI-40014 University of Jyvaskyla, Finland.
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Self-assembly in solvates of 2,4-diamino-6-(4-methyl- phenyl)-1,3,5-triazine and in its molecular adducts with some aliphatic dicarboxylic acids. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.11.083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Mirzaei M, Eshtiagh-Hosseini H, Bazargan M. Syntheses and X-ray crystal structure studies of four new coordination complexes and salts based on proton-transferred pyridine-2,6-dicarboxylic acid N-oxide. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-1965-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Du ZY, Zhao CC, Zhou ZG, Wang KJ. Two intricate hydrogen-bonded networks formed by m-sulfophenylphosphonic acid, melamine, and water molecules. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2012.09.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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11
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Hisamatsu S, Masu H, Takahashi M, Kishikawa K, Kohmoto S. Cocrystals of U-shaped ureadicarboxylic acid with 2-aminopyrimidine and melamine: rhombus-shaped cyclic heterotetramer motifs. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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Ikonen S, Jurček O, Wimmer Z, Drašar P, Kolehmainen E. Antioxidative succinobucol–sterol conjugates: Crystal structures and pseudosymmetry in the crystals. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Noponen V, Belt H, Lahtinen M, Valkonen A, Salo H, Ulrichová J, Galandáková A, Sievänen E. Bile acid-cysteamine conjugates: structural properties, gelation, and toxicity evaluation. Steroids 2012; 77:193-203. [PMID: 22133545 DOI: 10.1016/j.steroids.2011.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/09/2011] [Accepted: 11/12/2011] [Indexed: 10/15/2022]
Abstract
Design, synthesis, and characterization of six novel bile acid-cysteamine conjugates together with investigation of their structural studies, gelation properties, and preliminary toxicity evaluation, are reported. Solid state properties of selected compounds were studied by means of X-ray diffraction and (13)C CPMAS NMR spectroscopy. N-(2-thioethyl)-3α,7α,12α-trihydroxy-5β-cholan-24-amide was shown to exhibit (pseudo)polymorphism, and a single crystal structure of its non-stoichiometric hydrate is reported herein. Cholyl and dehydrocholyl derivatives bearing three functionalities in their steroidal backbone were shown to undergo self-assembly leading to gelation in certain organic solvents. Preliminary morphology studies of the formed gels by scanning electron microscopy (SEM) were performed. The standard model mouse fibroblast cell line together with the MTT and NR tests were utilized for evaluating the toxicity of the prepared compounds. Lithocholyl, ursodeoxycholyl, and dehydrocholyl derivatives turned out to be relatively non-toxic in the conditions studied.
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Affiliation(s)
- Virpi Noponen
- University of Jyväskylä, Department of Chemistry, P.O. Box 35, FI-40014 Jyväskylä, Finland.
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