Academic literature on the topic 'Pyridine adduct'

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Journal articles on the topic "Pyridine adduct"

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Strey, Mark, and Peter G. Jones. "Pyridine 1:1 adducts of urea (Z′ = 1) and thiourea (Z′ = 8)." Acta Crystallographica Section C Structural Chemistry 74, no. 4 (2018): 406–10. http://dx.doi.org/10.1107/s2053229618002632.

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During our studies of urea and thiourea adducts, we noticed that no adducts with unsubstituted pyridine had been structurally investigated. The 1:1 adduct of pyridine and urea, C5H5N·CH4N2O, crystallizes in the P21/c space group with Z = 4. The structure is of a standard type for urea adducts, whereby the urea molecules form a ribbon, parallel to the a axis, consisting of linked R 2 2(8) rings, and the pyridine molecules are attached to the periphery of the ribbon by bifurcated (N—H...)2N hydrogen bonds. The 1:1 adduct of pyridine and thiourea, C5H5N·CH4N2S, crystallizes in the P21/n space gro
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Suresh, T., S. Santosh Kumar, N. M. Kottureshawara, M. Revanasidappa, Syed Khasim, and Suresh. "Spectrophotometric Study of Nitrogen Base Adducts of Nickel(II)-4-methyl-8–quinolinate." E-Journal of Chemistry 5, no. 2 (2008): 404–8. http://dx.doi.org/10.1155/2008/989205.

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Adduct formation constants have been determined by spectrophotometric study of a few typical bases with nickel(II) chelate of 4-methyl-8-quinolinol in chloroform. Bathochromic and hypsochromic shifts were observed in the visible range due to the adduct formation. Monobasic bases like pyridine, methyl substituted anilines and such other bases exhibit 1: 2 stoichiometry giving hexa – coordinated adductds . The dibasic bases such as 1,10-phenanthroline and 2,9- neocuproine exhibit 1 : 1 stoichiometry giving hexacoordinated adducts . The experimental results are discussed in terms of the basicity
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Riedel, Sophie, Erica Brendler, Robert Gericke, Edwin Kroke, and Jörg Wagler. "Cyanopyridine adducts of SiF4 and SiCl4." Zeitschrift für Naturforschung B 79, no. 12 (2024): 675–85. https://doi.org/10.1515/znb-2024-0085.

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Abstract The formation of cyanopyridine (CN-py) adducts of silicon tetrahalides was investigated for 3- and 4-cyanopyridine in combination with SiF4 and SiCl4. Whereas bubbling of SiF4 through toluene solutions of 3-CN-py and 4-CN-py afforded white precipitates, which should possess the respective composition SiF4(CN-py)2, addition of SiCl4 did not cause any precipitation. Upon storage of the toluene solution of SiCl4 and 4-CN-py at 6 °C for several weeks, some crystals of the composition SiCl4(4-CN-py)2 ⋅ 2 (4-CN-py) ⋅ (toluene) were obtained. The use of SiCl4 as the solvent (i.e. SiCl4 in la
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Tuna, Ali, Anastassios Papageorgiou, Anssi Peuronen, Pekka Peljo, and Günther Knör. "mer-[InCl3(C5D5N)3]2·C5D5N: A New d5-pyridine Derivative of Indium(III) Chloride Complex." Journal of the Turkish Chemical Society Section A: Chemistry 12, no. 1 (2025): 15–22. https://doi.org/10.18596/jotcsa.1590991.

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In this study, we report the crystal structure of a meridional octahedral pyridine-indium(III) chloride adduct, mer-trichlorotris(d5-pyridine)indium(III)·0.5(d5-pyridine), InCl3(C5D5N)3·0.5(C5D5N), which exhibits an unreported molecule-to-solvent ratio compared to other substituted and unsubstituted pyridine-indium(III) chloride adducts described in earlier literature. The bonding characteristics of this d5-pyridine complex are compared to analogous complexes that have already been reported. Furthermore, the role of this metal complex in indium insertion into corrole ligands is discussed.
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Drebushchak, Tatiana N., Mikhail A. Mikhailenko, Elena V. Boldyreva, and Tatyana P. Shakhtshneider. "Tetragonal polymorph of the 1:1 adduct of sulfathiazole with pyridine." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): o2669—o2671. http://dx.doi.org/10.1107/s1600536806020101.

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The title tetragonal polymorph is one of the two sulfathiazole–pyridine adducts, C9H9N3O2S2·C5H5N, that can be formed either by crystallization from an n-propanol–pyridine solution, or by exposure of solid sulfathiazole to pyridine vapour. The asymmetric unit consists of a hydrogen-bonded sulfathiazole–pyridine pair. Hydrogen bonds of the form Naniline—H...Osulfonyl form a three-dimensional network. Pyridine molecules linked to sulfathiazole molecules by Namino—H...Npyridine hydrogen bonds are located in the channels of the sulfathiazole framework which extend along the 41 axis. The angle betw
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El-Abadelah, Mustafa M., Firas F. Awwadi, Ahmad H. Abdullah, and Wolfgang Voelter. "The reaction of imidazo[1,5-a]pyridines with ninhydrin revisited." Zeitschrift für Naturforschung B 75, no. 6-7 (2020): 559–65. http://dx.doi.org/10.1515/znb-2020-0027.

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AbstractThe synthesis of 2,2′-(Imidazo[1,5-a]pyridine-1,3-diyl)bis(2-hydroxy-1H-indene-1,3(2H)-dione) (11) is achieved by reaction of imidazo[1,5-a]pyridine (7) with two equivalents of ninhydrin (1) at room temperature. The structure of this new 1,3-bis-adduct 11 is evidenced from HRMS and NMR spectral data and confirmed by single-crystal X-ray crystallography. Employment of equimolar amounts of 1 and 7 gave a separable mixture of the respective 1- and 3-monomeric adducts (9, 10).
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K., C. MALHOTRA, BALA NEERAJ SHARMA BRIJ, S. BHATI S., and CHAUDHRY S.C. "Adducts of 4-t-Butylphenoxo Complexes of Oxovanadium(v) with 2-, 3- and 4-Cyanopyridines." Journal of Indian Chemical Society Vol. 75, Mar 1998 (1998): 137–39. https://doi.org/10.5281/zenodo.5915570.

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Department of Chemistry, Himachal Pradesh University, Summer Hill, Shimla-171 005 <em>Manuscript received 27 May 1996, revised 14 March 1997, accepted 16 May 1997</em> 4-t-Butylphenoxo-complexes of oxovanadium(v) of composition <strong>VOCl<sub>3-x</sub>(OC<sub>6</sub>H<sub>4</sub>Bu<sup>t</sup>-4)<sub>x</sub></strong>, where x = 1 &rarr; 3, react with 2-, 3- and 4- cyanopyridines to give adducts of varying composition. 2-Cyanopyridine forms adduct of 1 : 1 composition, coordinating simultaneously through pyridine as well as nitrile nitrogens of the ligand, while 3- and 4-cyanopyridines forms
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Wharf, Ivor, Ryszard Wojtowski, Carol Bowes, Anne-Marie Lebuis, and Mario Onyszchuk. "Spectroscopic studies of triphenyltin azide and of its adducts with O- and N-donor ligands; the crystal and molecular structures of triphenyltin azide and of azido(hexamethylphosphoramide)triphenyltin(IV)." Canadian Journal of Chemistry 76, no. 12 (1998): 1827–35. http://dx.doi.org/10.1139/v98-207.

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Complete far-IR and Raman data (&lt;400 cm-1) are reported for triphenyltin azide (1) as well as for adducts Ph3SnN3·L (L = hexamethylphosphoramide (HMPA), triphenylphosphine oxide, pyridine-N-oxide, 4-picoline-N-oxide, or pyridine). The small changes in v(Sn-N3) noted on going from (1) to the adducts, as well as solid-state 119Sn nmr data, indicate that (1), like the adducts, has five-coordinate tin atoms. X-ray analysis shows that (1) crystallizes with two different chains of five-coordinate Ph3Sn units joined by 1,3-azide bridges. In one unit, the geometry around tin is similar to that foun
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Mbarki, Mohammed, Marc Oettinghaus, and Gerhard Raabe. "Quantum-chemical Ab Initio Calculations on the Donor–Acceptor Complex Pyridine–Borabenzene (C5H5N–BC5H5)." Australian Journal of Chemistry 67, no. 2 (2014): 266. http://dx.doi.org/10.1071/ch13407.

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The adduct of borabenzene (C5H5B) and pyridine (C5H5N) was studied by means of quantum-chemical ab initio and time-dependent density functional theory calculations at different levels of theory. In the fully optimized structure (MP2/6-311++G**) of the free donor–acceptor complex (C2), the C–B–C angle amounts to 120.6°. The planes of the two aromatic rings enclose a torsion angle of ~40° with a barrier to rotation about the B–N bond of less than 3 kcal mol–1 (1 kcal mol–1 = 4.186 kJ mol–1). The highest computational level applied in this study (complete basis set limit, coupled cluster with sin
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Mbarki, M., M. Oettinghaus, and G. Raabe. "Corrigendum to: Quantum-chemical Ab Initio Calculations on the Donor–Acceptor Complex Pyridine–Borabenzene (C5H5N–BC5H5)." Australian Journal of Chemistry 69, no. 5 (2016): 583. http://dx.doi.org/10.1071/ch13407_co.

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The adduct of borabenzene (C5H5B) and pyridine (C5H5N) was studied by means of quantum-chemical ab initio and time-dependent density functional theory calculations at different levels of theory. In the fully optimized structure (MP2/6-311++G**) of the free donor–acceptor complex (C2), the C–B–C angle amounts to 120.6°. The planes of the two aromatic rings enclose a torsion angle of ~40° with a barrier to rotation about the B–N bond of less than 3kcalmol–1 (1kcalmol–1=4.186kJmol–1). The highest computational level applied in this study (complete basis set limit, coupled cluster with single and
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Dissertations / Theses on the topic "Pyridine adduct"

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Pecaut, Jacques. "Ingénierie cristalline de matériaux organo-minéraux pour l'optique non linéaire quadratique." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0037.

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Des chromophores non lineaires, derives de la pyridine, sont ancres dans des matrices minerales par un reseau de liaisons hydrogene courtes. Les sels remarquables que nous avons isole sont les dihydrogenoarseniate, chlorure et bromure de 2-amino-5-nitropyridinium dont les signaux de second harmonique sont equivalents ou superieurs a ceux du 3-methyl-4-nitropyridine-n-oxyde (pom). Les composes d'addition, chlorure de cadmium de la bis (4-nitropyridine-n-oxyde) et le bis (bromure mercurique) de la 4-nitropyridine-n-oxyde possedent des structures polaires dont la cohesion de l'entite non lineaire
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Fester, Gerrit. "Höherkoordinierte Pyridin-Addukte von Hydridochlorsilanen." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2010. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-27080.

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Die vorliegende Arbeit befasst sich mit der Synthese, Stabilität und Reaktivität von Hydridochlorosilan-Pyridin-Addukten (RHSiCl2, RSiCl3, SiCl4; mit R=H, Me und Ph). Hydridochlorosilane, die zu den wichtigsten industriell verwendeten Siliciumverbindungen gehören, bilden in unpolaren Lösungsmitteln durch Umsetzung mit Pyridinbasen stabile Hydridochlorosilan-Pyridin-Addukte in sehr hohen Reinheiten und Ausbeuten. Neben diesen Komplexierungsreaktionen werden auch Dismutations-, Dissoziations- und Hydrosilylierungsreaktionen genauer untersucht. Die Charakterisierung der Produkte erfolgte durch Lö
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Fester, Gerrit. "Höherkoordinierte Pyridin-Addukte von Hydridochlorsilanen: Synthesen und Anwendungen." Doctoral thesis, TU Bergakademie Freiberg, 2009. https://tubaf.qucosa.de/id/qucosa%3A22703.

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Die vorliegende Arbeit befasst sich mit der Synthese, Stabilität und Reaktivität von Hydridochlorosilan-Pyridin-Addukten (RHSiCl2, RSiCl3, SiCl4; mit R=H, Me und Ph). Hydridochlorosilane, die zu den wichtigsten industriell verwendeten Siliciumverbindungen gehören, bilden in unpolaren Lösungsmitteln durch Umsetzung mit Pyridinbasen stabile Hydridochlorosilan-Pyridin-Addukte in sehr hohen Reinheiten und Ausbeuten. Neben diesen Komplexierungsreaktionen werden auch Dismutations-, Dissoziations- und Hydrosilylierungsreaktionen genauer untersucht. Die Charakterisierung der Produkte erfolgte durch Lö
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Liéby-Muller, Frédéric. "Nouvelles réactions domino multicomposés : synthèse de polyhétérocycles azotés." Aix-Marseille 3, 2006. http://www.theses.fr/2006AIX30049.

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Au cours de ce travail, nous nous sommes intéressés au développement de nouvelles réactions domino multicomposés initiées par une addition de Michael induite par les tamis moléculaires, à partir de dérivés 1,3-dicarbonylés, d'accepteurs de Michael et d'amines primaires diversement fonctionnalisées. Les tamis moléculaires jouent le double rôle de catalyseur hétérogène de l'addition de Michael et de desséchant. L'objectif de notre travail est d'accéder sélectivement à de nouvelles molécules hétérocycliques polyfonctionnalisées utilisables comme échafaudages moléculaires dans l'industrie pharmace
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Fester, Gerrit [Verfasser]. "Höherkoordinierte Pyridin-Addukte von Hydridochlorsilanen : Synthesen und Anwendungen / vorgelegt von Gerrit Fester." 2009. http://d-nb.info/100866829X/34.

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Zeits, Paul. "Olefin Metatheses in Metal Coordination Spheres: Development of Gyroscope-like trans-Spanning Bis(pyridine) Complexes and Organometallic pi-Adducts of Conjugated Polymers." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10265.

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The olefin metathesis reaction has become one of the most powerful carbon-carbon bond forming reaction in synthetic chemistry. This work has expanded the utility of olefin metathesis in metal coordination spheres in three major directions (1) the synthesis and characterization of trans-spanning bis(pyridine)PtCl2 complexes, (2) the developme-adducts of polyacetylene (PA), and (3) the development of regioregular -adducts of poly(phenylene-vinylene) (PPV). Chapter I gives a brief overview of olefin metathesis and previous applications to organometallic substrates. Chapter II details the synt
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Book chapters on the topic "Pyridine adduct"

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of chromium(II) hydroborate pyridine adduct." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2015. http://dx.doi.org/10.1007/978-3-662-45972-0_125.

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Pardasani, R. T., and P. Pardasani. "Molar magnetic moment of pyridine adduct of dichlorobromoacetatoiron(III)." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 2. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62466-1_26.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of pyridine adduct with alkyl(trimethylsilyl)chromium complex." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54228-6_203.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of monomeric pyridine adduct of chromium(II) aryl." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-49202-4_430.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of pyridine adduct of copper(II) bromoacetate complex." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 4. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62474-6_426.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of copper(II) 2-methylthionicotinate adduct with pyridine." In Magnetic Properties of Paramagnetic Compounds, Magnetic Susceptibility Data, Volume 4. Springer Berlin Heidelberg, 2021. http://dx.doi.org/10.1007/978-3-662-62474-6_191.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of pyridine adduct of bis(triazen-1-olato)cobalt(II)." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54231-6_446.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of pyridine adduct of bis(triazen-1-olato)cobalt(II)." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54231-6_447.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of pyridine adduct of bis(triazen-1-olato)cobalt(II)." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54231-6_452.

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Pardasani, R. T., and P. Pardasani. "Magnetic properties of bis(pyridine) adduct of bis(triazen-1-olato)-cobalt(II)." In Magnetic Properties of Paramagnetic Compounds. Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-54231-6_445.

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Conference papers on the topic "Pyridine adduct"

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Lopez, Juan, Ibon Alkorta та Susana Blanco. "EXPLORING THE n→π* INTERACTION BETWEEN PYRIDINE AND KETONES: THE ROTATIONAL SPECTRUM OF PYRIDINE-ACETONE ADDUCT." У 2020 International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2020. http://dx.doi.org/10.15278/isms.2020.ml01.

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Gou, Qian, Walther Caminati, Emilio Cocinero, Alberto Lesarri, Montserrat Vallejo-López, and Lorenzo Spada. "ROTATIONAL SPECTRA OF ADDUCTS OF PYRIDINE WITH METHANE AND ITS HALIDES." In 69th International Symposium on Molecular Spectroscopy. University of Illinois at Urbana-Champaign, 2014. http://dx.doi.org/10.15278/isms.2014.rb05.

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Sucman, Natalia. "Nucleophilic addition of pyridine amines to the double bond of in situ generated morita-baylis-hillman adducts from indole-2,3-dione." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab19.

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This report will present the results of addition reactions of indole-2,3-dione to methyl or nitryl acrylate and amino-methyl-pyridine. The addition of an activated alkene like methyl acrylate and nitryl acrylate to a carbon electrophile in the presence of a nucleophilic catalyst is named Morita-Bailys Hillman (MBH) addition. Such adducts are very popular in organic chemistry [1-3]. As a result of screening various substances in search of new catalysts in MBH reactions, substances were discovered that not only catalyzed the addition of olefin to a carbonyl compound but also acted as a reagent t
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Marczak, Renata. "Self-assembling of C60-imidazole and C60-pyridine adducts in the Langmuir and Langmuir-Blodgett films via complex formation with water-soluble zinc porphyrins." In MOLECULAR NANOSTRUCTURES: XVII International Winterschool Euroconference on Electronic Properties of Novel Materials. AIP, 2003. http://dx.doi.org/10.1063/1.1627974.

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