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Li JX, Ge S, Lu YJ, Xu XJ, Liu C, Li SH. An asymmetric mononuclear cobalt(II) compound derived from 3-bromo-pyridine-2,6-dicarboxylic acid involving in-situ hydrothermal decarboxylation: structure, magnetic property and Hirshfeld surface analysis. Z KRIST-CRYST MATER 2023. [DOI: 10.1515/zkri-2023-0001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
Abstract
A new cobalt(II) compound with the formula [Co(5-Br-pyc)(2,2′-bipy)(H2O)(Cl)]·2H2O (1·H2O) (5-Br-Hpyc = 5-bromo-pyridine-2-carboxylic acid, 2,2′-bipy = 2,2′-bipyridine) has been hydrothermally synthesized and well characterized. The X-ray single-crystal diffraction analysis showed that 1⋅2H2O has crystallizes in the monoclinic system, space group P21/c (no. 14). The Co(II) center was octahedrally bonded by one bidentate chelate 5-Br-pyc anion and one 2,2′-bipy, one water molecule as well as one chloride anion to form the mononuclear structure of 1⋅2H2O. Complex 1⋅2H2O forms a 3D network through abundant O–H⋅⋅⋅O hydrogen bonds and π⋅⋅⋅π stacking interactions. Notably, the 5-Br-Hpyc ligand was in situ generated by decarboxylation of the 3-bromo-pyridine-2,6-dicarboxylic acid (3-Br-H2pydc) precursor selectively on 2-position under hydrothermal conditions. The magnetic properties, the Hirshfeld surface structure and the synthetic process for 1⋅2H2O have been carefully described and discussed.
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Affiliation(s)
- Jun-Xia Li
- Henan Key Laboratory of Function-Oriented Porous Materials , College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan Province , 471934 , P. R. China
| | - Shuai Ge
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan Province , 471934 , P. R. China
| | - Yi-Jing Lu
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan Province , 471934 , P. R. China
| | - Xiao-Jie Xu
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan Province , 471934 , P. R. China
| | - Chang Liu
- College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan Province , 471934 , P. R. China
| | - Shi-Hui Li
- Henan Key Laboratory of Function-Oriented Porous Materials , College of Chemistry and Chemical Engineering , Luoyang Normal University , Luoyang , Henan Province , 471934 , P. R. China
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Grützke M, Zhao T, Immel TA, Huhn T. Heptacoordinate Heteroleptic Salan (ONNO) and Thiosalan (OSSO) Titanium(IV) Complexes: Investigation of Stability and Cytotoxicity. Inorg Chem 2015; 54:6697-706. [PMID: 26151574 DOI: 10.1021/acs.inorgchem.5b00690] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Seven heptacoordinate titanium(IV) complexes were synthesized based on the concept of hetero-bis-chelate stabilization of salan (ONNO) and thiosalan (OSSO) titanium(IV)alkoxides with 2,6-pyridinedicarboxylic acid (dipic) and derivatives thereof. The resulting compounds were investigated in a solid by X-ray diffraction and in solution by NMR spectroscopy. A thiosalan (OSSO) titanium(IV) complex could be isolated and its conformational stabilization by dipic was shown by (1)H NMR spectroscopy to lead to nonfluxional behavior even at room temperature. The stability of selected complexes was assessed at pH 1.9, 6.8, and 12.1 by an UV-vis monitored hydrolysis study with >5 Mio. equivalents of water. Even at pH 12.1 [L(1)Ti(dipic)(1)] showed t1/2 of more than 2 days. The cytotoxicity of all compounds was investigated in two human carcinoma cell lines. IC50-values in the range of cisplatin were achieved by all tested compounds except for [L(4)Ti(dipic)(1)], which was proven to be nontoxic. The functionalization of dipic was thus well tolerated and did neither interfere with the stability nor the cytotoxicity of the heteroleptic complexes.
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Affiliation(s)
- Martin Grützke
- Fachbereich Chemie and Konstanz Research School Chemical Biology, Universität Konstanz, Universitätsstr. 10, D-78457 Konstanz, Germany
| | - Tiankun Zhao
- Fachbereich Chemie and Konstanz Research School Chemical Biology, Universität Konstanz, Universitätsstr. 10, D-78457 Konstanz, Germany
| | - Timo A Immel
- Fachbereich Chemie and Konstanz Research School Chemical Biology, Universität Konstanz, Universitätsstr. 10, D-78457 Konstanz, Germany
| | - Thomas Huhn
- Fachbereich Chemie and Konstanz Research School Chemical Biology, Universität Konstanz, Universitätsstr. 10, D-78457 Konstanz, Germany
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Chouthaiwale PV, Tanaka F. Reactions of pyruvates: organocatalytic synthesis of functionalized dihydropyrans in one pot and further transformations to functionalized carbocycles and heterocycles. Chem Commun (Camb) 2014; 50:14881-4. [DOI: 10.1039/c4cc06035k] [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
Concise cascade reactions of pyruvates with aldehydes that generate functionalized dihydropyran derivatives in one pot have been developed. The products, dihydropyrans, were further concisely transformed to various functionalized molecules.
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Affiliation(s)
- Pandurang V. Chouthaiwale
- Chemistry and Chemical Bioengineeing Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineeing Unit
- Okinawa Institute of Science and Technology Graduate University
- Okinawa 904-0495, Japan
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Wei Z, Yang Y, Li QF, Huang F, Zuo HH, Su XC. Noncovalent Tagging Proteins with Paramagnetic Lanthanide Complexes for Protein Study. Chemistry 2013; 19:5758-64. [DOI: 10.1002/chem.201204152] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 01/30/2013] [Indexed: 11/09/2022]
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Yang Z, Tang R, Tang C. The Co-luminescence Groups of Sm-La-pyridyl Carboxylic Acids and the Binding Characteristics between the Selected Doped Complex and Bovine Serum Albumin. B KOREAN CHEM SOC 2012. [DOI: 10.5012/bkcs.2012.33.4.1303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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BAO J, TANG C, YANG Z, TANG R. Luminescence properties of the co-luminescence groups of Sm-La-pyridyl carboxylic acids. J RARE EARTH 2012. [DOI: 10.1016/s1002-0721(12)60045-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bozdemir OA, Barin G, Belowich ME, Basuray AN, Beuerle F, Stoddart JF. Dynamic covalent templated-synthesis of [c2]daisy chains. Chem Commun (Camb) 2012; 48:10401-3. [DOI: 10.1039/c2cc35522a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hartung J, Stapf G, Bergsträsser U. Dimethyl cis-4-hydroxymethylpiperidine-2,6-dicarboxylate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1013. [PMID: 21579077 PMCID: PMC2979220 DOI: 10.1107/s1600536810010925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Accepted: 03/23/2010] [Indexed: 11/10/2022]
Abstract
The heterocyclic core of the title compound, C10H17NO5, adopts a chair conformation with its three C substituents positioned equatorially. In the crystal, intermolecular O—H⋯N hydrogen bonds between neighbouring molecules lead to chains along b. These chains are connected by hydrophobic interactions, forming infinite layers and N—H⋯O=C contacts between molecules of adjacent layers give rise to a three-dimensional structure.
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