151
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152
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Krause MR, Kubik S. Toward Engineering Intra-Receptor Interactions into Bis(crown ethers). Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A synthetic receptor was designed in which cooperative binding of two crown ether moieties to an alkali metal ion simultaneously causes two hydrophobic substituents not involved in direct host-guest interactions to converge. Hydrophobic interactions between these substituents can be expected to contribute to the overall complex stability. Independent binding studies involving two diastereoisomers of this bis(crown ether), one in which intra-receptor interactions between the substituents are potentially possible and one in which they are not, using isothermal titration calorimetry showed that both isomers bind potassium ions in different solvent mixtures with the same overall affinity. Profound differences were observed for each isomer, however, in the enthalpies and entropies of binding, which are consistent with intra-receptor interactions in one compound. These interactions are counteracted by enthalpy-entropy compensation so that no overall improvement in cation affinity could be observed.
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Affiliation(s)
- Martin R. Krause
- Fachbereich Chemie-Organische Chemie, Erwin-Schrödinger-Straße, Technische Universität Kaiserslautern, D-67663 Kaiserslautern, Germany
| | - Stefan Kubik
- Fachbereich Chemie-Organische Chemie, Erwin-Schrödinger-Straße, Technische Universität Kaiserslautern, D-67663 Kaiserslautern, Germany
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153
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Sonnenberg C, Hartmann A, Mazik M. Molecular Recognition of Carbohydrates: Evaluation of the Binding Properties of Pyrazole-based receptors and their Comparison with Imidazole- and Indole-based Systems. Nat Prod Commun 2012. [DOI: 10.1177/1934578x1200700311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The aim of the study was to evaluate the potential of pyrazole-based receptors in the complexation of carbohydrates. Representatives of a new series of acyclic pyrazole-based receptors were prepared and their binding properties toward selected mono- and disaccharides evaluated. The results of the binding studies were compared with those obtained for acyclic imidazole- and indole-based receptors. The first binding studies revealed di- vs monosaccharide binding preferences of the new receptors and showed that pyrazole units are useful building blocks for the construction of receptors with interesting binding preferences.
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Affiliation(s)
- Claudia Sonnenberg
- Institut für Organische Chemie, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - André Hartmann
- Institut für Organische Chemie, Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Monika Mazik
- Institut für Organische Chemie, Technische Universität Braunschweig, 38106 Braunschweig, Germany
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154
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Abstract
Binding of alkaloids by different hosts (native and modified cyclodextrins, cucurbiturils, calixarenes, and metal complexes of porphyrin and Salphen-type ligands), as well as receptor properties of alkaloid based hosts are reviewed. With alkaloids as guests, the largest binding constants and most significant spectral changes, in particular strong fluorescence enhancements induced by complexation with isoquinoline alkaloids, are observed with cucurbituril hosts. Cyclodextrins are successfully employed for improvement of solubility and for chiral separation of alkaloids of different types. Receptor properties of native and modified cinchona and bisbenzylisoquinoline alkaloids have attracted considerable attention for development of chiral selectors for analysis and separation.
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155
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Biedermann F, Scherman OA. Cucurbit[8]uril mediated donor-acceptor ternary complexes: a model system for studying charge-transfer interactions. J Phys Chem B 2012; 116:2842-9. [PMID: 22309573 DOI: 10.1021/jp2110067] [Citation(s) in RCA: 110] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A supramolecular self-assembly approach is described which allows for the convenient preparation of a wide range of charge-transfer (CT) donor-acceptor complexes in aqueous solutions. When one equiv of the macrocyclic host cucurbit[8]uril (CB[8]) is added to an aqueous donor and acceptor solution, a heteroternary complex forms inside the host's cavity with a well-defined face-to-face π-π-stacking geometry of the donor and acceptor. This heteroternary, CB[8]-mediated complex offers the opportunity to study the CT phenomena at low concentrations and free from complications arising from any donor-donor and acceptor-acceptor interactions as a result of the large binding affinities and the very high selectivity over the formation of these homoternary complexes. Thus, this supramolocular self-assembly strategy is a practical donor-acceptor mix-and-match approach with synthetic advantages over much more cumbersome tethering schemes. While the characteristic UV/vis features of a few CB[8] ternary systems had been described as a CT band, we present for the first time systematic evidence for the existence of CT interactions between several donor-acceptor pairs that are mediated by the host CB[8]. Correlation of the experimentally obtained CT λ(max) to computed HOMO-LUMO energies demonstrated that the CT process in the host's cavity can be described by the Mulliken model. Furthermore, the literature claim of a "CT driving force" for the formation of CB[8] ternary complexes was scrutinized and evaluated by calorimetric (ITC) and ESI-MS measurements. The findings indicated that neither in the aqueous medium nor in the "gas-phase" is CT of energetic relevance to the Gibbs free binding energy. In contrast, electrostatic considerations combined with solvation effects are much better suited to rationalize the observed trends in binding affinities. Additionally, the CT λ(max) was found to be much more red-shifted (≥75 nm) inside the CB[8] cavity than in any polar organic solvents or water, indicating a significant stabilization of the CT excited state within the host cavity, further demonstrating the unique electrostatic, polar properties of the host cavity.
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Affiliation(s)
- Frank Biedermann
- Melville Laboratory for Polymer Synthesis, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdon
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156
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Qin L, Yao LY, Yu SY. Self-Assembly of [M8L4] and [M4L2] Fluorescent Metallomacrocycles with Carbazole-Based Dipyrazole Ligands. Inorg Chem 2012; 51:2443-53. [DOI: 10.1021/ic202407b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lin Qin
- Laboratory
for Self-Assembly Chemistry, Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of
China
| | - Liao-Yuan Yao
- Laboratory
for Self-Assembly Chemistry, Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of
China
| | - Shu-Yan Yu
- Laboratory
for Self-Assembly Chemistry, Department of Chemistry, Renmin University of China, Beijing 100872, People’s Republic of
China
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157
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Cacciarini M, Nielsen MB, de Castro EM, Marinescu L, Bols M. β-Cyclodextrin as a mimetic of the natural GFP-chromophore environment. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.12.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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158
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Do-Thanh CL, Khanal N, Lu Z, Cramer SA, Jenkins DM, Best MD. Chloride binding by a polyimidazolium macrocycle detected via fluorescence, NMR, and X-ray crystallography. Tetrahedron 2012. [DOI: 10.1016/j.tet.2011.12.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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159
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Ovens JS, Truong KN, Leznoff DB. Structural organization and dimensionality at the hands of weak intermolecular Au⋯Au, Au⋯X and X⋯X (X = Cl, Br, I) interactions. Dalton Trans 2012; 41:1345-51. [DOI: 10.1039/c1dt11741f] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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160
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Mazik M. Recent developments in the molecular recognition of carbohydrates by artificial receptors. RSC Adv 2012. [DOI: 10.1039/c2ra01138g] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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161
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Mukhopadhyay C, Ghosh S, Schmiedekamp AM. Unraveling the molecular recognition of “three methylene spacer” bis(benzimidazolium) moiety by dibenzo-24-crown-8: pseudorotaxanes under study. Org Biomol Chem 2012; 10:1434-9. [DOI: 10.1039/c1ob06311a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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162
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Solid state and solution structures of alkaline-earth complexes with lariat ethers containing aniline and benzimidazole pendants. Polyhedron 2012. [DOI: 10.1016/j.poly.2011.09.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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163
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Wagner BD. Hydrogen bonding of excited states in supramolecular host–guest inclusion complexes. Phys Chem Chem Phys 2012; 14:8825-35. [DOI: 10.1039/c2cp40310b] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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164
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Aboshyan-Sorgho L, Cantuel M, Bernardinelli G, Piguet C. Looking for the origin of the switch between coordination-captured helicates and catenates. Dalton Trans 2012; 41:7218-26. [DOI: 10.1039/c2dt30414g] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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165
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Niu Z, Slebodnick C, Huang F, Azurmendi H, Gibson HW. An acid–base adjustable pseudocryptand-type [2]pseudorotaxane based on a bis(meta-phenylene)-32-crown-10 derivative and paraquat. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.09.054] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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166
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Frontera A, Gamez P, Mascal M, Mooibroek TJ, Reedijk J. Anion-π-Wechselwirkungen ins rechte Licht gerückt. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100208] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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167
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Frontera A, Gamez P, Mascal M, Mooibroek TJ, Reedijk J. Putting anion-π interactions into perspective. Angew Chem Int Ed Engl 2011; 50:9564-83. [PMID: 21928463 DOI: 10.1002/anie.201100208] [Citation(s) in RCA: 520] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 03/16/2011] [Indexed: 01/20/2023]
Abstract
Supramolecular chemistry is a field of scientific exploration that probes the relationship between molecular structure and function. It is the chemistry of the noncovalent bond, which forms the basis of highly specific recognition, transport, and regulation events that actuate biological processes. The classic design principles of supramolecular chemistry include strong, directional interactions like hydrogen bonding, halogen bonding, and cation-π complexation, as well as less directional forces like ion pairing, π-π, solvophobic, and van der Waals potentials. In recent years, the anion-π interaction (an attractive force between an electron-deficient aromatic π system and an anion) has been recognized as a hitherto unexplored noncovalent bond, the nature of which has been interpreted through both experimental and theoretical investigations. The design of selective anion receptors and channels based on this interaction represent important advances in the field of supramolecular chemistry. The objectives of this Review are 1) to discuss current thinking on the nature of this interaction, 2) to survey key experimental work in which anion-π bonding is demonstrated, and 3) to provide insights into the directional nature of anion-π contact in X-ray crystal structures.
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Affiliation(s)
- Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain.
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168
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Christensen HS, Sigurskjold BW, Frihed TG, Marinescu LG, Pedersen CM, Bols M. Recognition of Peptides by Cyclodextrin Trimers. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100671] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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169
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Estarellas C, Frontera A, Quiñonero D, Deyà PM. Unexpected Nonadditivity Effects in Anion−π Complexes. J Phys Chem A 2011; 115:7849-57. [DOI: 10.1021/jp2038416] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Carolina Estarellas
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
| | - Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
| | - David Quiñonero
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
| | - Pere M. Deyà
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain
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170
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Shape-persistent macrocycles: efficient extraction towards lanthanide and actinide elements. J INCL PHENOM MACRO 2011. [DOI: 10.1007/s10847-011-9991-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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171
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Carreira-Barral I, Rodríguez-Rodríguez A, Regueiro-Figueroa M, Esteban-Gómez D, Platas-Iglesias C, Blas AD, Rodríguez-Blas T. A merged experimental and theoretical conformational study on alkaline-earth complexes with lariat ethers derived from 4,13-diaza-18-crown-6. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.01.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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172
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173
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Frontera A, Quiñonero D, Deyà PM. Cation-π and anion-π interactions. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2011. [DOI: 10.1002/wcms.14] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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174
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Neelakandan PP, Nandajan PC, Subymol B, Ramaiah D. Study of cavity size and nature of bridging units on recognition of nucleotides by cyclophanes. Org Biomol Chem 2011; 9:1021-9. [PMID: 21210036 DOI: 10.1039/c0ob00673d] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We synthesized a few novel cyclophanes CP-1 to CP-4 containing anthracene units linked together through different bridging and spacer groups and have investigated their interactions with various nucleosides and nucleotides. Of these systems, CP-1 and CP-3 showed selectivity for 5'-GTP and 5'-ATP as compared to other nucleotides and nucleosides, whereas negligible selectivity was observed with CP-2 and CP-4. Interestingly, CP-1, CP-2 and CP-3 exhibited significant binding interactions with the fluorescent indicator, 8-hydroxy-1,3,6-pyrene trisulfonate (HPTS), resulting in the formation of non-fluorescent complexes. Titration of these complexes with nucleosides and nucleotides resulted in the displacement of HPTS, leading to the revival of its fluorescence intensity. It was observed that 5'-GTP induced the maximum displacement of HPTS from the complex [CP-1·HPTS] with an overall fluorescence enhancement of ca. 150-fold, while 5'-ATP induced ca. 45-fold. Although the displacement of HPTS from the complexes [CP-2·HPTS] and [CP-3·HPTS] was found to be similar to that of [CP-1·HPTS], these complexes showed lesser selectivity and sensitivity. In contrast, negligible displacement of HPTS was observed from the complex [CP-4·HPTS] under similar conditions. These results indicate that CP-1, having a well-defined cavity and good electron acceptor (viologen), is capable of forming selective and stable complexes. Though CP-2 and CP-3 retain the good electron acceptor (viologen), their reduced aromatic surface and larger cavity, respectively, resulted in lesser sensitivity. In contrast, CP-4 having a large cavity and a poor acceptor (1,2-bis(pyridin-4-yl)ethene) showed negligible selectivity, thereby indicating the importance of cavity size, bridging unit and aromatic surface on biomolecular recognition properties of cyclophanes.
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Affiliation(s)
- Prakash P Neelakandan
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum, 695019, India
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175
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Dey SK, Ojha B, Das G. A subtle interplay of C–H hydrogen bonds in complexation of anions of varied dimensionality by a nitro functionalized tripodal podand. CrystEngComm 2011. [DOI: 10.1039/c0ce00316f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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176
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Nowicka K, Bujacz A, Paluch P, Sobczuk A, Jeziorna A, Ciesielski W, Bujacz GD, Jurczak J, Potrzebowski MJ. Study of host–guest interactions in benzodiazacoronands by means of solid state NMR spectroscopy, X-ray diffraction and quantum mechanical computations. Phys Chem Chem Phys 2011; 13:6423-33. [DOI: 10.1039/c0cp02401e] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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177
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Niu Z, Gibson HW. Contrasting biscryptand/dimethyl paraquat [3]pseudorotaxanes: statistical vs. anticooperative complexation behavior. Org Biomol Chem 2011; 9:6909-12. [DOI: 10.1039/c1ob06299a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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178
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Arranz-Mascarós P, Bazzicalupi C, Bianchi A, Giorgi C, Godino-Salido ML, Gutiérrez-Valero MD, Lopez-Garzón R, Valtancoli B. Binding and recognition of AMP, ADP, ATP and related inorganic phosphate anions by a tren-based ligand containing a pyrimidine functionality. NEW J CHEM 2011. [DOI: 10.1039/c1nj20393b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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179
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Mazik M, Geffert C. 8-Hydroxyquinoline as a building block for artificial receptors: binding preferences in the recognition of glycopyranosides. Org Biomol Chem 2011; 9:2319-26. [DOI: 10.1039/c0ob00960a] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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180
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Evaluation of the binding ability of a macrobicyclic receptor for anions by potentiometry and molecular dynamics simulations in solution. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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181
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Arranz P, Bianchi A, Cuesta R, Giorgi C, Godino ML, Gutiérrez MD, López R, Santiago A. Binding and Removal of Sulfate, Phosphate, Arsenate, Tetrachloromercurate, and Chromate in Aqueous Solution by Means of an Activated Carbon Functionalized with a Pyrimidine-Based Anion Receptor (HL). Crystal Structures of [H3L(HgCl4)]·H2O and [H3L(HgBr4)]·H2O Showing Anion−π Interactions. Inorg Chem 2010; 49:9321-32. [DOI: 10.1021/ic100929f] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Paloma Arranz
- Departament of Inorganic and Organic Chemistry, University of Jaén, 23071, Jaén, Spain
| | - Antonio Bianchi
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - Rafael Cuesta
- Departament of Inorganic and Organic Chemistry, University of Jaén, 23071, Jaén, Spain
| | - Claudia Giorgi
- Department of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy
| | - M. Luz Godino
- Departament of Inorganic and Organic Chemistry, University of Jaén, 23071, Jaén, Spain
| | - M. D. Gutiérrez
- Departament of Inorganic and Organic Chemistry, University of Jaén, 23071, Jaén, Spain
| | - Rafael López
- Departament of Inorganic and Organic Chemistry, University of Jaén, 23071, Jaén, Spain
| | - Antonio Santiago
- Departament of Inorganic and Organic Chemistry, University of Jaén, 23071, Jaén, Spain
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182
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Mazik M, Sonnenberg C. Isopropylamino and Isobutylamino Groups as Recognition Sites for Carbohydrates: Acyclic Receptors with Enhanced Binding Affinity toward β-Galactosides. J Org Chem 2010; 75:6416-23. [DOI: 10.1021/jo100982x] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Monika Mazik
- Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Claudia Sonnenberg
- Institut für Organische Chemie der Technischen Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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183
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Ramaiah D, Neelakandan PP, Nair AK, Avirah RR. Functional cyclophanes: promising hosts for optical biomolecular recognition. Chem Soc Rev 2010; 39:4158-68. [PMID: 20730143 DOI: 10.1039/b920032k] [Citation(s) in RCA: 133] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Cyclophanes possess a defined cavity size and are efficient in encapsulating and stabilising guest molecules inside the cavity through various non-covalent interactions. This unique property of the cyclophanes has been widely exploited for the development of selective probes for a variety of guest molecules. The present tutorial review highlights the use of various interesting functionalised cyclophane architectures for the sensitive and selective optical recognition of important biomolecules.
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Affiliation(s)
- Danaboyina Ramaiah
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum 695 019, India.
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184
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Custelcean R, Bock A, Moyer BA. Selectivity principles in anion separation by crystallization of hydrogen-bonding capsules. J Am Chem Soc 2010; 132:7177-85. [PMID: 20438074 DOI: 10.1021/ja101354r] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The fundamental factors controlling anion selectivity in the crystallization of hydrogen-bonding capsules [Mg(H2O)6][X [symbol: see text] L2] (X = SO4(2-), 1a; SeO4(2-), 1b; SO3(2-), 1c; CO3(2-), 1d; L = tris[2-(3-pyridylurea)ethyl]-amine) from water have been investigated by solution and solid-state thermodynamic measurements, anion competition experiments, and X-ray structural analysis. The crystal structures of 1a-d are isomorphous, thereby simplifying the interpretation of the observed selectivities based on differences in anion coordination geometries. The solubilities of 1a-d in water follow the order: 1a < 1b < 1c < 1d, which is consistent with the selectivity for the tetrahedral sulfate and selenate anions observed in competitive crystallization experiments. Crystallization of the capsules is highly exothermic, with the most favorable DeltaH(cryst)(o) of -99.1 and -108.5 kJ/mol corresponding to SO4(2-) and SeO4(2-), respectively, in agreement with the X-ray structural data showing shape complementarity between these tetrahedral anions and the urea-lined cavities of the capsules. Sulfite, on the other hand, has a significantly less negative DeltaH(cryst)(o) of -64.6 kJ/mol, which may be attributed to its poor fit inside the capsules, involving repulsive interactions. The more favorable entropy of crystallization for this anion, however, partly offsets the enthalpic disadvantage, resulting in a solubility product very similar to that of the selenate complex. Because of their very similar shape and size, SO4(2-) and SeO4(2-) have a propensity to form solid solutions, which limits the selectivity between these two anions in competitive crystallizations. In the end, a comprehensive picture of contributing factors to anion selectivity in crystalline hydrogen-bonding capsules emerges.
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Affiliation(s)
- Radu Custelcean
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.
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185
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Structures of urea/thiourea 1,3-disubstituted thia[4]calixarenes and corresponding monofunctional receptors and their anion recognition properties. J INCL PHENOM MACRO 2010. [DOI: 10.1007/s10847-010-9798-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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186
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Askerov RK, Roznyatovsky VV, Katayev EA, Maharramov AM, Khrustalev VN. N, N′-Bis(2-aminophenyl)-3,4-diphenylthiophene-2,5-dicarboxamide acetonitrile solvate. Acta Crystallogr Sect E Struct Rep Online 2010; 66:o793. [PMID: 21580632 PMCID: PMC2983892 DOI: 10.1107/s1600536810008780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2010] [Accepted: 03/08/2010] [Indexed: 11/11/2022]
Abstract
In the title solvate, C30H24N4O2S·CH3CN, the substituted thiophene possesses approximate Cs(m) intrinsic symmetry, with the mirror plane passing through the S atom and the mid-point of the (Ph)C—C(Ph) bond. Despite the main backbone of the molecule being a long chain of conjugated bonds, it adopts a non-planar conformation due to the presence of various intra- and intermolecular hydrogen bonds. The hydrogen bonds result in twist configurations for both the amido and aminophenyl fragments relative to the central thiophene ring. There are two intramolecular Namine—H⋯O hydrogen bonds within the thiophene-2,5-dicarboxamide molecule that form seven-membered rings. In the crystal, the thiophene-2,5-dicarboxamide molecules form inversion dimers by four amide–amine N—H⋯N hydrogen bonds. The dimers are further linked into layers propagating in (100) both directly (via Namine—H⋯O hydrogen bonds) and through the acetonitrile solvate molecules (via amine–cyano N—H⋯N and CMe—H⋯O interactions).
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187
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Jisha VS, Arun KT, Hariharan M, Ramaiah D. Site-Selective Interactions: Squaraine Dye−Serum Albumin Complexes with Enhanced Fluorescence and Triplet Yields. J Phys Chem B 2010; 114:5912-9. [DOI: 10.1021/jp100369x] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vadakkancheril S. Jisha
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum 695019, India
| | - Kalliat T. Arun
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum 695019, India
| | - Mahesh Hariharan
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum 695019, India
| | - Danaboyina Ramaiah
- Photosciences and Photonics, Chemical Sciences and Technology Division, National Institute for Interdisciplinary Science and Technology (NIIST), CSIR, Trivandrum 695019, India
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188
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González J, Llinares JM, Belda R, Pitarch J, Soriano C, Tejero R, Verdejo B, García-España E. Tritopic phenanthroline and pyridine tail-tied aza-scorpiands. Org Biomol Chem 2010; 8:2367-76. [PMID: 20448894 DOI: 10.1039/b927418a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of two new tritopic double-scorpiand receptors in which two equivalent 5-(2-aminoethyl)-2,5,8-triaza[9]-(2,6)-pyridinophane moieties have been linked with 2,6-dimethylpyridine (L1) or 2,9-dimethylphenanthroline (L2) units is reported for the first time. Their acid-base behaviour and Zn(2+) coordination chemistry have been studied by pH-metric titrations, molecular dynamic calculations, NMR, UV-Vis and steady-state fluorescence techniques. L1 and L2 behave, respectively, as hexaprotic and heptaprotic bases in the experimental conditions used (298.1 +/- 0.1 K, 0.15 mol dm(-3) NaCl, pH range under study 2.0-11.0). These ligands are able to form mono-, bi- and trinuclear Zn(2+) complexes depending on the Zn(2+)-receptor molar ratio. Interaction of L1 and L2 with pyrophosphate (PPi), tripolyphosphate (TPP) and adenosine 5'-triphosphate (ATP) has been followed by pH-metric titrations, (1)H and (31)P NMR techniques and molecular dynamic analysis. Finally, formation of mixed complexes Zn(2+)-L-PPi, Zn(2+)-L-TPP and Zn(2+)-L-ATP has been studied for both receptors by potentiometric titrations.
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Affiliation(s)
- Jorge González
- Instituto de Ciencia Molecular (ICMOL), Departamento de Química Inorgánica, Universidad de Valencia, Edificio de Institutos de Paterna, Apartado de Correos 22085, 46071, Valencia, Spain
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189
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Dorazco-González A, Höpfl H, Medrano F, Yatsimirsky AK. Recognition of Anions and Neutral Guests by Dicationic Pyridine-2,6-dicarboxamide Receptors. J Org Chem 2010; 75:2259-73. [DOI: 10.1021/jo100037m] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Herbert Höpfl
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, México
| | - Felipe Medrano
- Centro de Investigaciones Químicas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, C.P. 62209 Cuernavaca, México
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190
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Amendola V, Bergamaschi G, Buttafava A, Fabbrizzi L, Monzani E. Recognition and sensing of nucleoside monophosphates by a dicopper(II) cryptate. J Am Chem Soc 2010; 132:147-56. [PMID: 19958001 DOI: 10.1021/ja9046262] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The dimetallic cryptate [Cu(2)(II)(1)](4+) selectively recognizes guanosine monophosphate with respect to other nucleoside monophosphates (NMPs) in a MeOH/water solution at pH 7. Recognition is efficiently signaled through the displacement of the indicator 6-carboxyfluorescein bound to the receptor, monitoring its yellow fluorescent emission. Titration experiments evidenced the occurrence of several simultaneous equilibria involving 1:1 and 2:1 receptor/NMP and receptor/indicator complexes. It was demonstrated that the added NMP displaces the indicator from the 2:1 receptor/indicator complex, forming the 1:1 receptor/analyte inclusion complex. Recognition selectivity is thus ascribed to the nature of nucleotide donor atoms involved in the coordination and their ability to encompass the Cu(II)-Cu(II) distance within the cryptate.
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Affiliation(s)
- Valeria Amendola
- Dipartimento di Chimica Generale, Università di Pavia, via Taramelli 12, 27100 Pavia, Italy
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191
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Neelakandan PP, Sanju KS, Ramaiah D. Effect of Bridging Units on Photophysical and DNA Binding Properties of a Few Cyclophanes. Photochem Photobiol 2010; 86:282-9. [DOI: 10.1111/j.1751-1097.2009.00660.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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192
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Hodyl JAZ, Lincoln SF, Wainwright KP. Solvent induced selectivity switching in aromatic-anion binding molecular receptors. J INCL PHENOM MACRO 2010. [DOI: 10.1007/s10847-009-9725-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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193
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Shul'pin GB. Selectivity enhancement in functionalization of C–H bonds: A review. Org Biomol Chem 2010; 8:4217-28. [DOI: 10.1039/c004223d] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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194
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Piguet C, Bünzli JCG. Chapter 247 Self-Assembled Lanthanide Helicates. HANDBOOK ON THE PHYSICS AND CHEMISTRY OF RARE EARTHS VOLUME 40 2010. [DOI: 10.1016/s0168-1273(10)40007-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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195
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Piguet C. Five thermodynamic describers for addressing serendipity in the self-assembly of polynuclear complexes in solution. Chem Commun (Camb) 2010; 46:6209-31. [DOI: 10.1039/c0cc00811g] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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196
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Lisowski CE, Hutchison JE. Malonamide-Functionalized Gold Nanoparticles for Selective, Colorimetric Sensing of Trivalent Lanthanide Ions. Anal Chem 2009; 81:10246-53. [DOI: 10.1021/ac902271t] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carmen E. Lisowski
- Department of Chemistry and Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
| | - James E. Hutchison
- Department of Chemistry and Materials Science Institute, University of Oregon, Eugene, Oregon 97403-1253
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197
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Boiocchi M, Fabbrizzi L, Garolfi M, Licchelli M, Mosca L, Zanini C. Templated Synthesis of Copper(II) Azacyclam Complexes Using Urea as a Locking Fragment and Their Metal-Enhanced Binding Tendencies towards Anions. Chemistry 2009; 15:11288-97. [DOI: 10.1002/chem.200901364] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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198
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Orienti I, Zuccari G, Carosio R, G. Montaldo P. Improvement of aqueous solubility of fenretinide and other hydrophobic anti-tumor drugs by complexation with amphiphilic dextrins. Drug Deliv 2009; 16:389-98. [DOI: 10.1080/10717540903101655] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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199
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Abstract
Supramolecular chemistry has expanded dramatically in recent years both in terms of potential applications and in its relevance to analogous biological systems. The formation and function of supramolecular complexes occur through a multiplicity of often difficult to differentiate noncovalent forces. The aim of this Review is to describe the crucial interaction mechanisms in context, and thus classify the entire subject. In most cases, organic host-guest complexes have been selected as examples, but biologically relevant problems are also considered. An understanding and quantification of intermolecular interactions is of importance both for the rational planning of new supramolecular systems, including intelligent materials, as well as for developing new biologically active agents.
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Affiliation(s)
- Hans-Jörg Schneider
- Organische Chemie, Universität des Saarlandes, 66041 Saarbrücken, Deutschland.
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200
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Wu KY, Hsieh CC, Horng YC. Mononuclear zinc(II) and mercury(II) complexes of Schiff bases derived from pyrrolealdehyde and cysteamine containing intramolecular NH⋯S hydrogen bonds. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.02.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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