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Solonina IA, Rodnikova MN, Kiselev MR, Khoroshilov AV, Makaev SV. Phase diagram of the monoethanolamine–dioxane system. MENDELEEV COMMUNICATIONS 2019. [DOI: 10.1016/j.mencom.2019.11.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Den T, Menzi S, Frey HM, Leutwyler S. Accurate gas-phase structure of para-dioxane by fs Raman rotational coherence spectroscopy and ab initio calculations. J Chem Phys 2017; 147:074306. [PMID: 28830173 DOI: 10.1063/1.4997633] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
p-Dioxane is non-polar, hence its rotational constants cannot be determined by microwave rotational coherence spectroscopy (RCS). We perform high-resolution gas-phase rotational spectroscopy of para-dioxane-h8 and -d8 using femtosecond time-resolved Raman RCS in a gas cell at T = 293 K and in a pulsed supersonic jet at T∼130 K. The inertial tensor of p-dioxane-h8 is strongly asymmetric, leading to a large number of asymmetry transients in its RCS spectrum. In contrast, the d8-isotopomer is a near-oblate symmetric top that exhibits a much more regular RCS spectrum with few asymmetry transients. Fitting the fs Raman RCS transients of p-dioxane-h8 to an asymmetric-top model yields the ground-state rotational constants A0 = 5084.4(5) MHz, B0 = 4684(1) MHz, C0 = 2744.7(8) MHz, and (A0 + B0)/2 = 4884.5(7) MHz (±1σ). The analogous values for p-dioxane-d8 are A0 = 4083(2) MHz, B0 = 3925(4) MHz, C0 = 2347.1(6) MHz, and (A0 + B0)/2 = 4002.4(6) MHz. We determine the molecular structure with a semi-experimental approach involving the highly correlated coupled-cluster singles, doubles and iterated triples method and the cc-pCVXZ basis set series from double- to quadruple-zeta (X = D, T, Q). Combining the calculated vibrationally averaged rotational constants A0calc(X),B0calc(X),C0calc(X) for increasing basis-set size X with non-linear extrapolation to the experimental constants A0exp,B0exp,C0exp allows to determine the equilibrium ground state structure of p-dioxane. For instance, the equilibrium C-C and C-O bond lengths are re(CC) = 1.5135(3) Å and re(CO) = 1.4168(4) Å, and the four axial C-H bond lengths are 0.008 Å longer than the four equatorial ones. The latter is ascribed to the trans-effect (anomeric effect), i.e., the partial delocalization of the electron lone-pairs on the O atoms that are oriented trans, relative to the axial CH bonds.
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Affiliation(s)
- Takuya Den
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3000 Bern 9, Switzerland
| | - Samuel Menzi
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3000 Bern 9, Switzerland
| | - Hans-Martin Frey
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3000 Bern 9, Switzerland
| | - Samuel Leutwyler
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3000 Bern 9, Switzerland
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Fargher M, Hedberg L, Hedberg K. The molecular structure of gaseous 1,4-dioxane: An electron-diffraction reinvestigation aided by theoretical calculations. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.04.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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4
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Stickel M, Maichle-Moessmer C, Mayer HA. Trimeric Cage Complexes of Platinum Group and Coin Metals. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201301325] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Rodnikova MN, Breslavskaya NN, Solonina IA, Dolin SP, Val’kovskaya TM. Comparative quantum chemical study of cyclic ether-water complexes. RUSS J INORG CHEM+ 2013. [DOI: 10.1134/s0036023613020204] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Breslavskaya NN, Rodnikova MN, Solonina IA, Dolin SP, Val’kovskaya TM. Comparative quantum-chemical study of complexes of cyclic ether with ethylene glycol. RUSS J INORG CHEM+ 2012. [DOI: 10.1134/s0036023612120042] [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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Brügger G, Frey HM, Steinegger P, Balmer F, Leutwyler S. Accurate determination of the structure of cyclohexane by femtosecond rotational coherence spectroscopy and ab initio calculations. J Phys Chem A 2011; 115:9567-78. [PMID: 21557553 DOI: 10.1021/jp2001546] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We combine femtosecond time-resolved rotational coherence spectroscopy with high-level ab initio theory to obtain accurate structural information for the nonpolar molecules cyclohexane (C(6)H(12)) and cyclohexane-d(12) (C(6)D(12)). We measured the rotational B(0) and centrifugal distortion constants D(J), D(JK) of the v = 0 states of C(6)H(12) and C(6)D(12) to high accuracy, for example, B(0)(C(6)H(12)) = 4306.08(5) MHz, as well as B(v) for the vibrationally excited states ν(32), ν(6), ν(16) and ν(24) of C(6)H(12) and additionally ν(15) for C(6)D(12). To successfully reproduce the experimental RCS transient, the overtone and combination levels 2ν(32), 3ν(32), ν(32) + ν(6), and ν(32) + ν(16) had to be included in the RCS model calculations. The experimental rotational constants are compared to those obtained at the second-order Møller-Plesset (MP2) level. Combining the experimental and calculated rotational constants with the calculated equilibrium bond lengths and angles allows determination of accurate semiexperimental equilibrium structure parameters, for example, r(e)(C-C) = 1.526 ± 0.001 Å, r(e)(C-H(axial)) = 1.098 ± 0.001 Å, and r(e)(C-H(equatorial)) = 1.093 ± 0.001 Å. The equilibrium C-C bond length of C(6)H(12) is only 0.004 Å longer than that of ethane. The effect of ring strain due to the unfavorable gauche interactions is mainly manifested as small deviations from the C-C-C, C-C-H(axial), and C-C-H(equatorial) angles from the tetrahedral value.
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Affiliation(s)
- Georges Brügger
- Departement für Chemie und Biochemie, Universität Bern, Freiestrasse 3, CH-3000 Bern 9, Switzerland
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Durant F, Gobillon Y, Piret P, van Meerssche M. Étude par Diffraction de Rayons X de Complexes D'Halogénures Alcalins et de Molécules Organiques. V. Structure du Complexe Chlorure du Lithium. Dioxanne-1,4. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/bscb.19660750106] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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9
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de Kok AJ, Romers C. The conformation of non-aromatic ring compounds. Part 60. The crystal structure of 2-p
-Chlorophenyl-1,3-dioxane. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19700890312] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Buys HR. Conformation of non-aromatic ring compounds-LIV: The calculation of dihedral angles from vicinal proton coupling constants in six-membered ring compounds. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19690880814] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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Remerie K, van Gunsteren WF, Engberts JBFN. Molecular dynamics computer simulation as a tool for the analysis of solvation: A study of dilute aqueous solutions of 1,4-dioxane and 1,3-dioxane. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19851040306] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Koning RE, Visser GJ, Vos A. The structure of the reduction product of the head-to-head photodimer of isophorone. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19700890906] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Buys HR, Leeuwestein CH, Havinga E. Conformation of non-aromatic ring compounds: Part 55. Dipole moments, NMR spectra and conformation of trans
-2,3-dihalogenotetralins. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19690881010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Romers C, van Heykoop E, Hesper B, Geise HJVH. The conformation of non-aromatic ring compounds XV: The crystal structure of 4-bromo-9β,10α-pregna-4,6-diene-3,20-dione A preliminary communication. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19650840709] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Mann G. Die Struktur alicyclischer Moleküle mit gesättigten sechsgliedrigen Ringen; Zum 100. Jahrestag der Aufstellung der Strukturformel des Cyclohexans durch Hermann Sachse. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/zfch.19900300102] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Arunachalampillai A, Olsson D, Wendt OF. Synthesis and characterisation of PCsp3P phosphine and phosphinite iridium complexes. Cyclometallation and dehydrogenation of a cyclohexyl ring. Dalton Trans 2009:8626-30. [DOI: 10.1039/b910798c] [Citation(s) in RCA: 42] [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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18
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Bucourt R. The Torsion Angle Concept in Conformational Analysis. TOPICS IN STEREOCHEMISTRY 2007. [DOI: 10.1002/9780470147177.ch2] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Romers C, Altona C, Buys HR, Havinga E. Geometry and Conformational Properties of Some Five- and Six-Membered Heterocyclic Compounds Containing Oxygen or Sulfur. ACTA ACUST UNITED AC 2007. [DOI: 10.1002/9780470147139.ch2] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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20
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Olsson D, Arunachalampillai A, Wendt OF. Synthesis and characterisation of PCsp3P phosphine and phosphinite platinum(ii) complexes. Cyclometallation and simple coordination. Dalton Trans 2007:5427-33. [DOI: 10.1039/b712660c] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Esteban AL, Galache MP. Proton and carbon-13 NMR study of partially oriented 1,4-dioxane Determination of therαstructure and of bond contributions to the orientation. Mol Phys 2006. [DOI: 10.1080/00268979400100224] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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22
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Cinacchi G, Ingrosso F, Tani A. Solvation Dynamics by Computer Simulation: Coumarin C153 in 1,4-Dioxane. J Phys Chem B 2006; 110:13633-41. [PMID: 16821891 DOI: 10.1021/jp0616765] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Computer simulation results are presented for an atomistic pair potential model of 1,4-dioxane which takes into account molecular flexibility. The model has been conceived to be applied to the study of solvatochromism and solvation dynamics in the presence of the polar probe coumarin C153. Computer simulations on the pure liquid have produced thermodynamical, structural, and dynamical data in good agreement with available experimental measures. This constitutes a valuable test of the 1,4-dioxane all-atom model employed. The study of solute-solvent interactions for C153 in 1,4-dioxane has been motivated by the aim of casting light, through simulations, on the interesting experimental findings according to which such a solvent behaves as a "polar" solvent with respect to dynamic solvation properties. Molecular dynamics is particularly suitable to model the process and provides an interpretation of the so-called "dioxane anomaly". An investigation of the structure of the solvation shell and of the dynamics of solvation is presented and discussed. In particular, the satisfactory accordance between simulated and experimental solvation response implies that the simulations give a reliable description of both solute and solvent at a molecular level and reinforces the idea that the explicit inclusion of discrete solvent molecules is needed for a realistic treatment of solvation phenomena in which the local structure of the liquid plays a key role.
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Affiliation(s)
- Giorgio Cinacchi
- Dipartimento di Chimica, Università di Pisa, Via Risorgimento 35, I-56126, Italy.
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23
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Ottaviani P, Caminati W, Millemaggi A. Equatorial and axial hydrogens in heterocyclic six-membered rings: the rotational spectrum of piperazine. J Mol Struct 2006. [DOI: 10.1016/j.molstruc.2005.02.039] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Favero LB, Giuliano BM, Melandri S, Maris A, Ottaviani P, Velino B, Caminati W. CH···O and CH···F Links Form the Cage Structure of Dioxane−Trifluoromethane. J Phys Chem A 2005; 109:7402-4. [PMID: 16834107 DOI: 10.1021/jp0527599] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The molecular beam Fourier transform microwave spectrum of 1,4-dioxane-trifluoromethane has been assigned and measured. The two subunits form a cage stabilized by one C-H...O and two C-H...F weak hydrogen bonds. The C-H...O link involves the axial lone pair of one of the two equivalent ring oxygens, while the two C-H...F bridges connect trifluoromethane to the two axial hydrogens in positions 3 and 5. The dissociation energy has been estimated from the D(J) centrifugal distortion parameter to be approximately 6.8 kJ/mol.
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Affiliation(s)
- Laura B Favero
- Istituto per lo Studio dei Materiali Nanostrutturati (ISMN, Sezione di Bologna), CNR, Via Gobetti 101, I-40129 Bologna, Italy
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Iratçabal P, Liotard D. Conformational Dynamics of 9,9-Dimethyl-1,5-Dihetero-Spiro [5.5] Undecanes by Molecular Mechanics Calculations: A Three-Dimensional Topological Approach. J Comput Chem 2004. [DOI: 10.1002/jcc.540070411] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Riehn C, Matylitsky VV, Jarzeba W, Brutschy B, Tarakeshwar P, Kim KS. Insights into the Structure of Cyclohexane from Femtosecond Degenerate Four-Wave Mixing Spectroscopy and Ab Initio Calculations. J Am Chem Soc 2003; 125:16455-62. [PMID: 14692789 DOI: 10.1021/ja036615o] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
In this paper, we report the use of femtosecond time-resolved degenerate four-wave mixing rotationally resolved spectroscopy to obtain very accurate structural information on the symmetric top cyclohexane. Apart from highlighting the versatility of this method in determining accurate structures of large and complex molecules without dipole moment, the present study also details the comparison of the experimentally determined rotational constant B(0) with that obtained from high-level ab initio calculations. The theoretical calculations, which were carried out at both the second-order Møller-Plesset (MP2) and coupled-cluster with single, double, and perturbative triple substitutions [CCSD(T)] levels of theory, also take into account vibrational averaging effects. A detailed investigation of the vibrational averaging effects reveals that the corrections emerge from only the six highly symmetric A(1g) modes, a justification of which is provided by an analysis of these modes.
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Affiliation(s)
- Christoph Riehn
- Wolfgang Goethe-Universität Frankfurt/M., Institut für Physikalische und Theoretische Chemie, Marie-Curie-Str. 11, D-60439 Frankfurt/M., Germany.
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Güllüoğlu M, Yurdakul Ş. An infrared and Raman spectroscopic study of the Hofmann-type complexes and clathrates: M(piperidine)2Ni(CN)4; M(piperidine)2Ni(CN)4·1.5G (M=Cd, Co, Ni or Cu; G=benzene). J Mol Struct 2002. [DOI: 10.1016/s0022-2860(02)00335-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Arnason I, Oberhammer H. Conformations of silicon-containing rings. Part 4. Gas-phase structure of 1,3,5-trisilacyclohexane and comparison with cyclohexane and cyclohexasilane. J Mol Struct 2001. [DOI: 10.1016/s0022-2860(01)00632-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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30
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Freeman F, Kasner ML, Hehre WJ. An ab Initio Theory and Density Functional Theory (DFT) Study of Conformers of Tetrahydro-2H-pyran. J Phys Chem A 2001. [DOI: 10.1021/jp012342c] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fillmore Freeman
- Department of Chemistry, University of California, Irvine, California 92697-2025, Department of Chemistry and Biochemistry, Montclair State University, Upper Montclair, New Jersey 07043-1699, and Wavefunction, Inc., Irvine, California 92612
| | - Marc L. Kasner
- Department of Chemistry, University of California, Irvine, California 92697-2025, Department of Chemistry and Biochemistry, Montclair State University, Upper Montclair, New Jersey 07043-1699, and Wavefunction, Inc., Irvine, California 92612
| | - Warren J. Hehre
- Department of Chemistry, University of California, Irvine, California 92697-2025, Department of Chemistry and Biochemistry, Montclair State University, Upper Montclair, New Jersey 07043-1699, and Wavefunction, Inc., Irvine, California 92612
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Ciccarese A, Clemente D, Fanizzi F, Marzotto A, Valle G. Synthesis and molecular structure of N-methylpiperazinium(+1) and N,N′-dimethylpiperazinium(+2) platinum(II) and platinum(IV) complexes Part II. Inorganica Chim Acta 1998. [DOI: 10.1016/s0020-1693(98)00067-x] [Citation(s) in RCA: 13] [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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32
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Caminati W, Dell'Erba A, Melandri S, Favero PG. Conformation and Stability of Ether−Water Adducts: Free Jet Absorption Millimeter Wave Spectrum of 1,4-Dioxane−Water. J Am Chem Soc 1998. [DOI: 10.1021/ja973958b] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Walther Caminati
- Contribution from the Dipartimento di Chimica “G. Ciamician”, Università degli Studi di Bologna, Via Selmi 2, I-40126 Bologna, Italy
| | - Adele Dell'Erba
- Contribution from the Dipartimento di Chimica “G. Ciamician”, Università degli Studi di Bologna, Via Selmi 2, I-40126 Bologna, Italy
| | - Sonia Melandri
- Contribution from the Dipartimento di Chimica “G. Ciamician”, Università degli Studi di Bologna, Via Selmi 2, I-40126 Bologna, Italy
| | - Paolo G. Favero
- Contribution from the Dipartimento di Chimica “G. Ciamician”, Università degli Studi di Bologna, Via Selmi 2, I-40126 Bologna, Italy
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Affiliation(s)
- Brian J. Smith
- Biomolecular Research Institute, Parkville, VIC 3052, Australia
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Laska JE, Kaszynski P, Jacobs SJ. Synthesis, Strain, Conformational Analysis, and Molecular and Crystal Structures of 1,1,4,4-Tetraphenyl-1,4-disilacyclohexane and 1,1,4,4-Tetraphenyl-1,4-disilacyclohexa-2,5-diene. Organometallics 1998. [DOI: 10.1021/om9707883] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jadwiga E. Laska
- Organic Materials Research Group, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235
| | - Piotr Kaszynski
- Organic Materials Research Group, Department of Chemistry, Vanderbilt University, Nashville, Tennessee 37235
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35
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Cyvin S, Cyvin B, Brunvoll J, Wang J. Enumeration of staggered conformers of alkanes and monocyclic cycloalkanes. J Mol Struct 1998. [DOI: 10.1016/s0022-2860(97)00419-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Affiliation(s)
- Darren M. Chapman
- Department of Chemistry, University of York, Heslington, York YO1 5DD, England
| | - Ronald E. Hester
- Department of Chemistry, University of York, Heslington, York YO1 5DD, England
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Stössel P, Mayer HA, Maichle-Mössmer C, Fawzi R, Steimann M. The Mo(CO)3 Fragment as an Organometallic Protection Group in the Synthesis of Functionalized Tripodal Phosphine Ligands. Inorg Chem 1996. [DOI: 10.1021/ic9602512] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Philipp Stössel
- Institut für Anorganische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Hermann A. Mayer
- Institut für Anorganische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Cäcilia Maichle-Mössmer
- Institut für Anorganische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Riad Fawzi
- Institut für Anorganische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Manfred Steimann
- Institut für Anorganische Chemie, Eberhard-Karls-Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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Moring J, Duclos RI, Zhang JH, Herbette LG, Xie X, Makriyannis A. Single crystal X-ray structures of the two 4-heptadecyl derivatives of (1R,5S)-3,6,8-trioxabicyclo[3.2.1]octane. Chem Phys Lipids 1995; 77:99-112. [PMID: 7586096 DOI: 10.1016/0009-3084(95)02458-u] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The single crystal structures of the two diastereomeric 4-heptadecyl derivatives of (1R,5S)-3,6,8-trioxabicyclo[3.2.1]octane have been determined by X-ray diffraction to be (1R,4R,5S)-heptadecyl-3,6,8-trioxabicyclo[3.2.1]octane (I) and (1R,4S,5S)-4-heptadecyl[3,6,8-trioxabicyclo[3.2.1]octane (II), respectively, which have an exo or axial 4-heptadecyl group, and an endo or equatorial 4-heptadecyl group, respectively. The structures of I and II had been suggested by their phase-sensitive 2D NOESY 1H-NMR spectra, but are now established unambiguously. These optically pure non-ionic lipid-like amphipathic molecules (I and II) represent the first 3,6,8-trioxabicyclo[3.2.1]octanes for which single crystal structures have been solved. Crystals of both isomer I and isomer II were orthorhombic with space group P2(1)2(1)2(1), and had unit cell dimensions of a = 9.586, b = 43.14, c = 5.289 A, and a = 7.34, b = 51.8, c = 5.636 A, respectively. The structures of I and II were both solved by using direct methods to R = 0.045 and R = 0.086, respectively. Both I and II pack in stacked bilayers with interdigitating and tilting hydrocarbon chains. The molecular and hydrocarbon cross sections are I: S = 50.70 A2, sigma = 19.00 A2; and II: S = 41.37 A2, sigma = 18.26 A2.
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Affiliation(s)
- J Moring
- Department of Radiology, University of Connecticut Health Center, Farmington 06030, USA
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Mayer HA, Stößel P, Fawzi R, Steimann M. Synthesis and Complexation Behavior of the Functionalized Tripodal Phosphanecis,cis-1,3,5-Tris(cyano)-1,3,5-tris(diphenylphosphanyl)-cyclohexane (tdppcycn). ACTA ACUST UNITED AC 1995. [DOI: 10.1002/cber.19951280710] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Synthesis and X-ray molecular structure of cis, cis-1,3,5-Tris(diphenylphosphino)- 1,3,5-tris(methoxycarbonyl) cyclohexane. J Organomet Chem 1995. [DOI: 10.1016/0022-328x(94)05316-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Vajda E, Nefedov OM, Hargittai I. Molecular structure of 1,1-dimethylsilacyclopentene-3,4-oxide from gas-phase electron diffraction. Struct Chem 1995. [DOI: 10.1007/bf02263523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Borecka B, Cameron TS, Malik MA, Smith BC. Stereospecific reactions of aryltellurium(IV) trichlorides with 3-cyclohexene-1-methanol and 3-cyclohexene-1,1-dimethanol: the X-ray crystal structure of 2′,4′-dimethoxyphenyl(trans-6-oxabicyclo[3.2.1]oct-4-yl)tellurium(IV) dichloride. CAN J CHEM 1995. [DOI: 10.1139/v95-035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aryltellurium(IV) trichlorides react with 3-cyclohexene-1-methanol and 3-cyclohexene-1,1-dimethanol to give aryl(trans-6-oxabicyclo[3.2.1]oct-4-yl)tellurium(IV) dichlorides and aryl(cis-1-hydroxymethyl-trans-6-oxabicyclo[3.2.1]oct-4-yl)tellurium(IV) dichlorides. The structure of 2′,4′-dimethoxyphenyl(trans-6-oxabicyclo[3.2.1]oct-4-yl)tellurium(IV) dichloride has been determined by single crystal X-ray analysis. The compound C15H20Cl2O3Te, Mr = 446.8, crystallizes in the monoclinic space group P21/c with a = 9.626(2) Å, b = 15.768(5) Å, c = 11.176(3) Å, β = 92.08(1)°, V = 1695.2(5) Å3 and D(calc) = 1.751 for Z = 4. Tellurium is bonded axially to two chlorines and equatorially to aryl carbon and carbon from the cyclohexyl portion of oxabicyclo[3.2.1]oct-4-yl in a pseudo-trigonal-bipyramidal arrangement having an equatorial lone pair of electrons. Bond lengths are Te—Cl(1) = 2.492(3) Å, Te—Cl(2) = 2.539(3) Å, Te—C(4) = 2.175(10) Å, and Te—C(9) = 2.090(10) Å. Keywords: organotellurium(IV), 3-cyclohexene-1-methanol, 3-cyclohexene-1, 1-dimethanol.
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Mayer HA, Otto H, Kühbauch H, Fawzi R, Steimann M. cis,cis-1,3,5-Tris(diphenylphosphino)cyclohexane (tdppcy). A new tripodal phosphine that forms metal complexes with adamantane-type structures. rystal structure of Ir(tdppcy)Cl3. J Organomet Chem 1994. [DOI: 10.1016/0022-328x(94)80221-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mayer HA, Fawzi R, Steimann M. Synthesis, X-Ray Structure and Complexation Behavior of the New Tripodal Phosphane Ligandcis, cis-1,3,5-Tris[(diphenylphosphanyl)methyl]1-1,3,5-trimethylcyclohexane (tdppmtmcy). Crystal Structure of Ir(tdppmtmcy)(CO)Cl. ACTA ACUST UNITED AC 1993. [DOI: 10.1002/cber.19931260612] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Almond MJ, Beer MP, Drew MG, Rice DA. The adduct formed between dimethylcadmium and 1,4-dioxane, 1,4-dioxanedimethylcadmium(II): a crystallographic and spectroscopic study. J Organomet Chem 1991. [DOI: 10.1016/0022-328x(91)86396-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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X-ray, NMR and theoretical studies of the structure and conformation of the nootropic agent tenilsetam. Eur J Med Chem 1991. [DOI: 10.1016/0223-5234(91)90105-v] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Bessard Y, Schlosser M. Catalytic hydrogenolysis of cyclopropanes: Metal insertion into a saturated carbon—carbon bond as the key step. Tetrahedron 1991. [DOI: 10.1016/s0040-4020(01)86379-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jauch J, Schurig V, Walz L. Structure of the dimer of racemic exo-3-hydroxy-bicyclo[2.2.1]heptan-2-one. ACTA ACUST UNITED AC 1991. [DOI: 10.1524/zkri.1991.196.1-4.255] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Esseffar M, Mouhtadi M, Smeyers Y. Protonation and dicoordination deformation in polyethers: dioxane and dimethoxyethane. ACTA ACUST UNITED AC 1990. [DOI: 10.1016/0166-1280(90)80004-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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