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Ion recognition properties of new pyridine-2,6-dicarboxamide bearing propeller-like pendant residues: multi-spectroscopic approach. MONATSHEFTE FUR CHEMIE 2020. [DOI: 10.1007/s00706-020-02558-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Abstract
The synthesis and ion binding properties of new amide derived from propeller-like tris(2-pyridyl)amine and 2,6-pyridinedicarboxylic acid chloride were described. Amide binds divalent metal cations: copper(II), nickel(II), zinc(II), and lead(II) in acetonitrile. In acetonitrile:water mixture (9:1 v/v) amide interacts only with copper(II) and nickel(II) cations forming complexes of 1:1 stoichiometry. It was found that the introduction of bulky, nitrogen donor atom bearing pendant groups can influence coordination mode of pyridine-2,6-dicarboxamides. The probable model of ligand-ion interactions is proposed on the basis of 1H NMR and FT-IR spectroscopy.
Graphic abstract
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Reja A, Biswas A, Yadav J, Dev D, Das AK. Induction of Supramolecular Helical Handedness in a Chemical Reaction Directed Self-Healable Soft Material. ChemistrySelect 2017. [DOI: 10.1002/slct.201702212] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Antara Reja
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Ankan Biswas
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Jonu Yadav
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Dharm Dev
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
| | - Apurba K. Das
- Department of Chemistry; Indian Institute of Technology Indore; Khandwa Road Indore 453552 India
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Han J, Aceña JL, Yasuda N, Uekusa H, Ono T, Soloshonok VA, Klika KD. Carbonyl group coordination preferences in square-planar NiII and PdII complexes of pentadentate ligands by electron-withdrawing/donating substituents. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2015.04.029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Han J, Ono T, Uekusa H, Klika KD, Soloshonok VA. Substituent-controlled preference of carbonyl group–metal coordination in d8 metal complexes with non-symmetric pentadentate ligands. Structural and stereochemical aspects. Dalton Trans 2014; 43:5375-81. [DOI: 10.1039/c3dt53312c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sidearm substitution of chirally switchable Ni(ii) and Pd(ii) complexes permits stereochemical inclinations to be controlled in the solid state.
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Affiliation(s)
- Jianlin Han
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing, China
| | - Taizo Ono
- National Institute of Advanced Industrial Science and Technology (AIST)
- Nagoya, Japan
| | - Hidehiro Uekusa
- Department of Chemistry and Materials Science
- Tokyo Institute of Technology
- Tokyo 152-8551, Japan
| | - Karel D. Klika
- Molecular Structure Analysis
- German Cancer Research Center (DKFZ)
- D-69009 Heidelberg, Germany
- Department of Chemistry
- University of Turku
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of the Basque Country UPV/EHU
- 20018 San Sebastián, Spain
- IKERBASQUE
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Kim SH, Parquette JR. A model for the controlled assembly of semiconductor peptides. NANOSCALE 2012; 4:6940-6947. [PMID: 23034819 DOI: 10.1039/c2nr32140h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The self-assembly of small molecules provides a potentially powerful method to create functional nanomaterials for many applications ranging from optoelectronics to oncology. However, the design of well-defined nanostructures via molecular assembly is a highly empirical process, which severely hampers efforts to create functional nanostructures using this method. In this review, we describe a simple strategy to control the assembly of functionalized peptides by balancing attractive hydrophobic effects that drive assembly with opposing electrostatic repulsions. Extended π-π contacts are created in the nanostructures when assembly is driven by π-stacking interactions among chromophores that are appended to the peptide. The formation of insoluble β-sheet aggregates are mitigated by incorporating charged side-chains capable of attenuating the assembly process. Although the application of this approach to the assembly of organic semiconductors is described, we expect this strategy to be effective for many other functional organic materials.
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Affiliation(s)
- Se Hye Kim
- Department of Chemistry, The Ohio State University, 100 W. 18th Ave, Columbus, Ohio 43210, USA
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Lv J, Yin X, Zheng H, Li Y, Li Y, Zhu D. The configuration, solvatochromism and metallo-responses of two novel cyano-containing oligo(phenylene-vinylene) derivatives. LUMINESCENCE 2010; 26:185-90. [DOI: 10.1002/bio.1204] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2009] [Revised: 12/18/2009] [Accepted: 01/14/2010] [Indexed: 01/07/2023]
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Napitupulu M, Griggs BL, Luo SX, Turner P, Maeder M, Lawrance GA. Symmetrical diamides based on 2,6-bis(methoxycarbonyl)pyridine: Syntheses and metal ion binding studies. J Heterocycl Chem 2009. [DOI: 10.1002/jhet.72] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Yu J, RajanBabu TV, Parquette JR. Conformationally Driven Asymmetric Induction of a Catalytic Dendrimer. J Am Chem Soc 2008; 130:7845-7. [PMID: 18507460 DOI: 10.1021/ja802308a] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jianfeng Yu
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
| | - T. V. RajanBabu
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
| | - Jon R. Parquette
- Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210
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Soloshonok VA, Ueki H, Moore JL, Ellis TK. Design and Synthesis of Molecules with Switchable Chirality via Formation and Cleavage of Metal−Ligand Coordination Bonds. J Am Chem Soc 2007; 129:3512-3. [PMID: 17338523 DOI: 10.1021/ja067995r] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vadim A Soloshonok
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA.
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Preston AJ, Gallucci JC, Parquette JR. Folded Metallodendrons: Shell-Selective Metal Coordination and Conformational Properties. Org Lett 2006; 8:5885-8. [PMID: 17134297 DOI: 10.1021/ol062544x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis, structure, and conformational properties of folded metallodendrons are described. The enhanced coordination ability of oxazoline-functionalized pyridyl-2,6-dicarboxamides, compared with pyridyl-2.6-diarylamides, permits unique metals to be installed at the peripheral and focal shells of the dendron. Circular dichroism (CD) studies and X-ray crystallography indicate that the intrinsic helical preference of the parent dendron is not perturbed by coordination. However, the CD spectra become insensitive to temperature due to an increase in structural rigidity that occurs upon metal coordination. [structure: see text]
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Affiliation(s)
- Adam J Preston
- Department of Chemistry, The Ohio State University, Columbus, OH 43210, USA
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Preston AJ, Gallucci JC, Parquette JR. Structural Impact of Coordinating a Helical 2,6-Pyridyl Diamide with Divalent Metals. Org Lett 2006; 8:5259-62. [PMID: 17078692 DOI: 10.1021/ol062086s] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[Structure: see text] The structural consequences of coordinating 2,6-bis[2-((4S)-4-methyl-4,5-dihydro-1,3-oxazol-2-yl)phenyl]carbamoylpyridines, 2, with divalent metals such as Cu(II), Ni(II), and Zn(II) are reported. Metal coordination occurs under mild conditions in a manner that preserves the helical bias of the parent ligand in the solid state and in solution. 1H NMR line-shape analysis indicates that metal coordination increases the helical interconversion barrier, thus rigidifying the dynamic helicity of 2.
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Affiliation(s)
- Adam J Preston
- Department of Chemistry, The Ohio State University, Columbus, Ohio 43210, USA
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Kumar N, Milton MD, Singh JD, Upreti S, Butcher RJ. Design, synthesis, and structural aspects of chalcogen-substituted pyridine dicarboxamide donors and their reactions. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2005.12.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tie C, Gallucci JC, Parquette JR. Helical Conformational Dynamics and Photoisomerism of Alternating Pyridinedicarboxamide/m-(Phenylazo)azobenzene Oligomers. J Am Chem Soc 2006; 128:1162-71. [PMID: 16433532 DOI: 10.1021/ja0547228] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Alternating sequences of pyridine-2,6-dicarboxamides and meta-(phenylazo)azobenzenes have been assembled into oligomers composed of four (8) and eight (9) azobenzene linkages. X-ray crystallography confirmed that oligomer 8 adopts a two-turn helical conformation with a helical pitch of approximately 3.4 Angstroms in the solid state. The presence of a two- and four-turn helical conformation of 8 and 9, respectively, in polar and nonpolar solvents was elucidated by the anisotropic upfield shifting of protons located within the helices, NOE enhancements between protons oriented toward the helix interior, and the diastereotopicity of the terminal benzyloxycarbonyl (CBz) methylene protons. (1)H NMR line shape analysis of the CBz methylene hydrogens at the chain ends revealed a dynamic equilibria interconverting M and P helical conformations with energetic barriers (DeltaG) of 11.1 (DeltaS = -19.4 +/- 1.6 cal mol(-1) K(-1); DeltaH = 6.5 +/- 0.4 kcal/mol) for 8 and 13.8 kcal/mol (DeltaS = -6.6 +/- 6.2 cal mol(-1) K(-1); DeltaH = 11.8 +/- 1.8 kcal/mol) for 9. Irradiation of the oligomers with 350 nm light induces an E --> Z isomerization of the azo linkages that decreases in efficacy at longer helix lengths. The suppression of E --> Z isomerization is a consequence of the contrasting behavior of the azo linkages located at the helix termini, which afford Z/E ratios similar to those of model compound 7d, and the internal azo groups, which undergo significantly lower Z/E conversion ratios compared with 7e.
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Affiliation(s)
- Chenyang Tie
- Department of Chemistry, The Ohio State University, Columbus, 43210, USA
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Minami T, Koyamoto S, Kobayashi M, Tanaka R, Hatanaka Y. Helical Stereocontrol of 2,6-Bis{(2-arylcarbamoylphenyl)carbamoyl}pyridine Derivatives by Use of Chiral Auxiliaries. CHEM LETT 2005. [DOI: 10.1246/cl.2005.434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Lockman JW, Paul NM, Parquette JR. The role of dynamically correlated conformational equilibria in the folding of macromolecular structures. A model for the design of folded dendrimers. Prog Polym Sci 2005. [DOI: 10.1016/j.progpolymsci.2005.01.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Chapter 5.7 Five-Membered ring systems with O & N Atoms. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0959-6380(05)80053-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Alcock NW, Clarkson G, Glover PB, Lawrance GA, Moore P, Napitupulu M. Complexes of 2,6-bis[N-(2′-pyridylmethyl)carbamyl]pyridine: formation of mononuclear complexes, and self-assembly of double helical dinuclear and tetranuclear copper(ii) and trinuclear nickel(ii) complexes. Dalton Trans 2005:518-27. [PMID: 15672196 DOI: 10.1039/b414251a] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potentially pentadentate ligand 2,6-bis[N-(2'-pyridylmethyl)carbamyl]pyridine (H2L1), readily prepared from reaction of a diester of pyridine-2,6-dicarboxylic acid (H2dipic) and 2-aminomethylpyridine (ampy), shows limited tendency to form 1:1 M:L complexes with labile metal ions, although [CuL1] and [NiL1] were observed as minor species, the latter characterized by a crystal structure analysis. A mononuclear complex formed with inert Co(III) was characterized by a crystal structure as the neutral 1:2 complex [Co(L1)(HL1)] with two ligands acting as tridentate ligands, one coordinated by the central pyridine and its two flanking deprotonated amido groups, and the other by the central pyridine, one amido and one terminal pyridine group, with the remaining poorly coordinating protonated amide remaining unbound along with other terminal pyridine groups. Fe(III) is known to form a symmetrical 1:2 complex, but that complex is anionic due to binding of all four deprotonated amido groups; the unsymmetrical neutral Co(III) complex converts into a symmetrical anionic species only on heating for hours in aqueous base in the presence of activated carbon. The most remarkable tendency of H2L1, however, is towards the formation of robust double helical complexes: a dinuclear Cu(II) complex [Cu2L1(2)] forms, as well as a trinuclear Ni(II) complex [Ni(3)(L1)2(OAc)2(MeOH)2]. Moreover, in the presence of added H2dipic, the tetranuclear complex [Cu4(L1)2(dipic)2(OH2)2] is obtained. All helical complexes have been characterized by X-ray crystal structure analyses, and all crystals feature a racemic mixture of left- and right-handed double helices stabilized by inter-ligand pi-stacking (inter-ring distances of 3.2-3.8 A) of ligands which each span several metal ions. Using the chelating ligand pentane-2,4-dione (acac), each of the two pairs of adjacent monodentate ligands in [Ni3(L1)2(OAc)2(OH2)2] have been shown to be available for substitution without destroying the helical structure, to form [Ni3(L1)2(acac)2], also characterized by a crystal structure.
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Miyake H, Yoshida K, Sugimoto H, Tsukube H. Dynamic Helicity Inversion by Achiral Anion Stimulus in Synthetic Labile Cobalt(II) Complex. J Am Chem Soc 2004; 126:6524-5. [PMID: 15161259 DOI: 10.1021/ja049130o] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The helical chirality of a Co(II) complex with a chiral tetradentate ligand is completely inverted from Lambda to Delta by the addition of achiral NO3- anion as an external stimulus.
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Affiliation(s)
- Hiroyuki Miyake
- Department of Chemistry, Graduate School of Science, Osaka City University, Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan.
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Huang B, Prantil MA, Gustafson TL, Parquette JR. The Effect of Global Compaction on the Local Secondary Structure of Folded Dendrimers. J Am Chem Soc 2003; 125:14518-30. [PMID: 14624601 DOI: 10.1021/ja037895a] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The effect of nonlocal interactions on the local structural propensities of folded dendrimers was evaluated in this work by comparing, under identical conditions, the conformational properties of isomeric dendrimers differing in their global packing efficiency. Accordingly, a modular synthesis of two series of dendrimers up to the third generation was developed to provide efficient access to isomeric dendrimers displaying different levels of overall compaction. Dendrimer compaction levels were adjusted by connecting the folded dendrons to 1,3,5-benzenetricarbonyl chloride, as the central core, via either a 2- or a 4-aminobenzamide linkage to induce relatively "compacted" or "expanded" conformations, respectively. The hydrodynamic volumes of the dendrimers were measured by time-resolved fluorescence anisotropy (TRFA) measurements as a function of the dendrimer series, generation level, and solvent. Packing efficiencies (compaction levels) were estimated by the ratio (V(h)/V(vw)) of the experimental hydrodynamic volume (V(h)) to the calculated van der Waals volume (V(vw)). The extent and stability of local helical bias was measured using circular dichroism and correlated with the packing efficiency (V(h)/V(vw)). These studies suggested that compaction plays an extremely important role in determining the secondary structural preferences of the dendrimers; however, the nature of compaction was more important than the extent of compaction.
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Affiliation(s)
- Baohua Huang
- Department of Chemistry, The Ohio State University, Columbus, OH 43210, USA
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Coordination-Driven Assembly of Molecular Clefts. B KOREAN CHEM SOC 2003. [DOI: 10.5012/bkcs.2003.24.7.889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Karaböcek S, Degirmencioglu I, Karaböcek N, Er M, Serbest K. The effect of intramolecular-hydrogen bonds in the synthesis of novel imidates from a 13-membered dioxadithia crown ether diester. J Heterocycl Chem 2003. [DOI: 10.1002/jhet.5570400412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Rauckhorst MR, Wilson PJ, Hatcher SA, Hadad CM, Parquette JR. ‘Locking’ dendrimer conformation through metal coordination. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00460-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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