Готові списки джерел за темами / Butatrienone

Добірка наукової літератури з теми "Butatrienone"

Автор: Grafiati

Опубліковано: 10 грудня 2022

Оновлено: 29 січня 2023

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Статті в журналах з теми "Butatrienone"

Brown, RFC, KJ Coulston, FW Eastwood, ADE Pullin, and AC Staffa. "Argon Matrix Study of the Infrared Spectrum of Butatrienone." Australian Journal of Chemistry 43, no. 3 (1990): 561. http://dx.doi.org/10.1071/ch9900561.

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Butatrienone, H2C=C=C=C=O, was generated by pyrolysis of each of six different precursors in a stream of argon at temperatures in the range 710-880°C, and the pyrolysate-argon mixture was condensed on a Csl plate at c. 10 K. Infrared spectra were obtained between 4000 and 250 cm-1. Two precursors, buta-2,3-dienoic trifluoracetic anhydride (1) and buta-2,3-dienoyl chloride (2), gave pyrolysates showing a spectrum consisting of six strong bands and five weak bands. Four precursors, bicyclo [2.2.1]hept-5′-en-2′-ylideneacetic trifluoracetic anhydride (3), 5-( bicyclo [2.2.1]hept-5′-en-2′-ylidene)-2,2-dimethyl-1,3-dioxan-4,6- dione (4),2,2-dimethyl-5-(7?-oxabicyclo[2.2.1]hept-5?-en-2?-ylidene)- 1,3-dioxan-4,6-dione (5) and 3,4-diazatricyclo[5.2.1.02,6]deca-3,8-diene-endo-cis-2,6-dicarboxylic anhydride (6) gave pyrolysates showing spectra consisting principally of the six strong bands. The observed bands assigned to matrix-isolated butatrienone were at 3105w, 3035s, 3010w, 2964w, 2242s, 1996w, 1495s, 1456s, 728s, 404w cm-1. Calculated frequencies, using various models, for butatrienone are reported and are used to make plausible assignments. The strongest band (v2) attributed to butatrienone was at 2242 cm-1 which was shifted to 2200 cm-1 in (1-13C) butatrienone.

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Brown, Ronald D., Peter D. Godfrey, Martin J. Ball, Stephen Godfrey, Donald McNaughton, Martin Rodler, Burkhard Kleiboemer, and Robert Champion. "Is butatrienone (H2C:C:C:C:O) kinked?" Journal of the American Chemical Society 108, no. 21 (October 1986): 6534–38. http://dx.doi.org/10.1021/ja00281a015.

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Anderson, MR, RFC Brown, NR Browne, FW Eastwood, GD Fallon, DPC Gan, ADE Pullin, and AC Staffa. "The Pyrolysis of Butatrienone Precursors: 3,4-Diazatricyclo[5.2.1.02,6]deca-3,8-diene-endo-cis-2,6-dicarboxylic anhydride and Its 5,5-Diphenyl Derivative." Australian Journal of Chemistry 43, no. 3 (1990): 549. http://dx.doi.org/10.1071/ch9900549.

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Flash vacuum pyrolysis of the title anhydride (4) gave a poor yield of butatrienone , detected by argon matrix isolation infrared spectroscopy. Similar pyrolysis of the 5,5-diphenyl derivative (8) failed to give diphenylbutatrienone ; the red product (16) is considered to have been formed by dimerization of an intermediate 2H-indenylidenemethanone (15). The crystal structure of (16) has been determined.

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Şahin, Sevgi, Erdi A. Bleda, Zikri Altun, and Carl Trindle. "Computational characterization of isomeric C4 H2 O systems: Thermochemistry, vibrational frequencies, and optical spectra for butatrienone, ethynyl ketene, butadiynol, and triafulvenone." International Journal of Quantum Chemistry 116, no. 6 (December 29, 2015): 444–51. http://dx.doi.org/10.1002/qua.25063.

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KATAGIRI, HIDEKI, YUKIHIRO SHIMOI, and SHUJI ABE. "A THEORETICAL STUDY OF BISTABILITY OF POLYDIACETYLENE: TCDU(poly(5,7-dodecadiyne-1,12-diyl-bis-phenylurethane)." International Journal of Modern Physics B 15, no. 28n30 (December 10, 2001): 3821–24. http://dx.doi.org/10.1142/s0217979201008755.

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We performed a first-principles calculation of typical polydiacetylene (PDA), TCDU (poly(5,7-dodecadiyne-1,12-diyl-bis-phenylurethane)). Potential energy curves (PEC's) as a function of two bond lengths of the backbone chain are presented. The present PEC's show that TCDU has only an acetylene-type stable structure and a butatriene-type structure is unstable, consistent with our previous calculations with a geometry optimization procedure. This result is in contrast to the case of a hypothetical hydrogen-substituted PDA where a butatriene-type structure is obtained as a meta-stable structure.

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Herges, Rainer, and Christoph Hoock. "A Novel Butatriene Synthesis." Synthesis 1991, no. 12 (1991): 1151–52. http://dx.doi.org/10.1055/s-1991-28408.

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Märkl, Gottfried, Hans Sejpka, S. Dietl, Bernd Nuber, and Manfred L. Ziegler. "1-Phospha-1,2,3-butatriene." Angewandte Chemie 98, no. 11 (November 1986): 1020–21. http://dx.doi.org/10.1002/ange.19860981124.

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Märkl, Gottfried, Hans Sejpka, Stefan Dietl, Bernd Nuber, and Manfred L. Ziegler. "1-Phospha-1,2,3-butatriene." Angewandte Chemie International Edition in English 25, no. 11 (November 1986): 1003–4. http://dx.doi.org/10.1002/anie.198610031.

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Ibis, Cemil, Cigdem Sayil, and N. Gulsah Deniz. "Crystal Structures of Tetrakis‐(4‐chlorophenylthio)‐butatriene and Tetrakis‐(tert‐butylthio)‐butatriene." Spectroscopy Letters 39, no. 4 (August 1, 2006): 299–309. http://dx.doi.org/10.1080/00387010600779146.

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Herges, Rainer, and Christoph Hoock. "Butatriene durch Desulfurierung cyclischer Trithiocarbonate." Angewandte Chemie 104, no. 12 (December 1992): 1652–54. http://dx.doi.org/10.1002/ange.19921041223.

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Більше джерел

Дисертації з теми "Butatrienone"

"Cycloheptatriene, cyclopentadiene and butatriene: from unconventional building blocks to organic semiconductors." 2013. http://library.cuhk.edu.hk/record=b5884285.

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Xia, Hai.
Thesis (Ph.D.)--Chinese University of Hong Kong, 2013.
Includes bibliographical references.
Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.
Abstract also in Chinese.

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Saliu, Kuburat Olubanke. "Synthesis, structures and reactions of hydrotris(pyrazolyl)borate complexes of divalent and trivalent lanthanides." Phd thesis, 2009. http://hdl.handle.net/10048/610.

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The synthesis and reactions of hydrotris(pyrazolyl)borate, (TpR,R) supported ytterbium(II) borohydride and lanthanide(III) dialkyl (Ln = Yb, Lu) complexes were investigated. The lanthanide(III) dialkyl complexes were found to undergo both hydrogenolysis reaction and protonolysis reaction with terminal alkynes. Reaction of [(TptBu,Me)YbH]2 (1) with NH3BH3 and (TptBu,Me)YbI(THF) (2) with NaBH4 afforded the corresponding mono-ligand complexes, (TptBu,Me)Yb(BH4) (3) and (TptBu,Me)Yb(BH4)(THF) (4), respectively. Compounds 3 and 4 represent rare examples of lanthanide(II) tetrahydroborate complexes. IR spectroscopy data, in the B-H stretching region are consistent with the 3-BH4 bonding mode found in the solid state of compound 4 and the corresponding deuterium labelled BD4 analogue of 4 shows the expected IR isotope shifts. Mono-ligand lanthanide dialkyl complexes, (TpR,R)Ln(CH2SiMe2R)2(THF)0/1 (5-9) were synthesized from the homoleptic Ln(CH2SiMe2R)3(THF)2 (Ln = Yb, Lu; R = Me, Ph) complexes by two alternative and complementary methods: alkyl abstraction with the thallium salts of the ligands, TlTpR,R and protonolysis using the acid form of the ligands, HTpR,R. Hydrogenolysis of the dialkyl complexes (TpMe2)Ln(CH2SiMe3)2(THF) (7a, Yb; 8a, Lu) afforded the corresponding tetranuclear hydride complexes, [(TpMe2)LnH2]4 (11, Yb; 12, Lu). Similarly, hydrogenolysis of (Tp)Yb(CH2SiMe3)2(THF) (9) afforded the hexanuclear hydride [(Tp)YbH2]6 (13). When treated with a variety of terminal alkynes, the dialkyl complexes, (TpR,Me)Ln(CH2SiMe3)2(THF) (14a, Y; 8a, Lu), gave the corresponding bis-alkynide complexes, (TpR,Me)Ln(CCR)2 (15-27). The structures of the complexes depend on the steric size of both the alkyne substituents and the substituent on position 3 of the pyrazolyl ring. Except for the bulkiest substituents, the compounds are dimeric with two asymmetric 2-alkynide bridging groups and a coupled alkynide unit bridging the two lanthanide centers via an unusual enyne bonding motif. The synthesis of Lu(CH2Ph-4-R)3(THF)3 (R = H, 28a; R = Me, 28b) was achieved by salt metathesis reactions between KCH2Ph-4-R and LuCl3. Variable temperature NMR studies in THF shows that the formation of these complexes is accompanied by a small amount of the anionic ate K[Lu(CH2PH-4-R)4(THF)n] (30) complexes, which can be prepared independently by reaction of pure Lu(CH2Ph-4-R)3(THF)3 with one equiv. of KCH2Ph-4-R. One of the coordinated THF of 28a could be removed by trituration with toluene to give Lu(CH2Ph-4-R)3(THF)2 (29a). Protonolysis reaction with HTpR,R afforded the corresponding dibenzyl complexes, (TpR,R)Ln(CH2Ph-4-R)2(THF)n (31-33). X-ray crystal structures of complex 4, the dialkyl complexes 5b, 6b, 7 and 8; dihydride complexes 11, 12 and 13; bis-alkynide complexes 15, 16, 17, 21, 22 and 24 as well as the tribenzyl compounds 28a and 29a and dibenzyl complexes 31-33 were determined. The solution behaviour, solid state structures and structural diversity of these complexes are discussed.

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Частини книг з теми "Butatrienone"

Ogasawara, M. "Photorearrangement of Vinylidenecyclopropanes to Butatriene Derivatives." In Cumulenes and Allenes, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-044-00087.

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Ogasawara, M. "Formation of a Butatriene from 2-Nitro-1,1-diphenylethene." In Cumulenes and Allenes, 1. Georg Thieme Verlag KG, 2008. http://dx.doi.org/10.1055/sos-sd-044-00092.

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"b) Donor-substituierte Butatriene: β) 1-Dialkylamino-l,2,3-alkatriene." In Ene-X and Yne-X Compounds, edited by Heinz Kropf and Ernst Schaumann. Stuttgart: Georg Thieme Verlag, 1993. http://dx.doi.org/10.1055/b-0035-117354.

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"b) Donor-substituierte Butatriene: δ) 1,1-Bis-[organothio]-1,2,3-alkatriene." In Ene-X and Yne-X Compounds, edited by Heinz Kropf and Ernst Schaumann. Stuttgart: Georg Thieme Verlag, 1993. http://dx.doi.org/10.1055/b-0035-117356.

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"b) Donor-substituierte Butatriene: ε) 1,1-Bis-[dialkylamino]-1,2,3-alkatriene." In Ene-X and Yne-X Compounds, edited by Heinz Kropf and Ernst Schaumann. Stuttgart: Georg Thieme Verlag, 1993. http://dx.doi.org/10.1055/b-0035-117357.

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"b) Donor-substituierte Butatriene: α) 1-Alkoxy-l,2,3-alkatriene (I)." In Ene-X and Yne-X Compounds, edited by Heinz Kropf and Ernst Schaumann. Stuttgart: Georg Thieme Verlag, 1993. http://dx.doi.org/10.1055/b-0035-117353.

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"b) Donor-substituierte Butatriene: γ) 1,1- und 1,4-Dialkoxy-l,2,3-alkatriene." In Ene-X and Yne-X Compounds, edited by Heinz Kropf and Ernst Schaumann. Stuttgart: Georg Thieme Verlag, 1993. http://dx.doi.org/10.1055/b-0035-117355.

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Звіти організацій з теми "Butatrienone"

Pearson, John. Applications of modified Wittig reaction to butatriene synthesis. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.495.

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