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Thevenet, Damien

Nom
Thevenet, Damien
Affiliation principale
Fonction
Ancien.ne collaborateur.trice
Identifiants
https://libra.unine.ch/handle/123456789/823
_
0000-0001-7114-1597

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  • Publication
    Métadonnées seulement
    1,4-Bis(hex-yloxy)-2,5-diiodo-benzene
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Sereda, Olha
    ;
    Neels, Antonia
    ;
    Stoeckli-Evans, Helen 
    The centrosymmetric title compound, C(18)H(28)I(2)O(2), crystallized in the monoclinic space group P2(1)/c with the alkyl chains having extended all-trans conformations, similar to those in the centrosymmetric bromo analogue [Li et al. (2008 (black right triangle)). Acta Cryst. E64, o1930] that crystallized in the triclinic space group P. The difference between the two structures lies in the orientation of the two alkyl chains with respect to the C(aromatic)-O bond. In the title compound, the O-C(alk-yl)-C(alk-yl)-C(alk-yl) torsion angle is 55.8 (5)°, while in the bromo analogue this angle is -179.1 (2)°. In the title compound, the C-atoms of the alkyl chain are almost coplanar [maximum deviation of 0.052 (5) Å] and this mean plane is inclined to the benzene ring by 50.3 (3)°. In the bromo-analogue, these two mean planes are almost coplanar, making a dihedral angle of 4.1 (2)°. Another difference between the crystal structures of the two compounds is that in the title compound there are no halide(midline ellipsis)halide inter-actions. Instead, symmetry-related mol-ecules are linked via C-H(midline ellipsis)? contacts, forming a two-dimensional network.
  • Publication
    Métadonnées seulement
    2-(2-Naphthyl)-1,3-dioxane
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Stoeckli-Evans, Helen 
    The title compd., C14H14O2, crystallizes in the chiral monoclinic space group P21. Crystallog. data and at. coordinates are given. This acetal is composed of a planar naphthalene ring with a 1,3-dioxane ring substituent, which has a chair conformation. In the crystal structure, symmetry-related mols. are connected via a weak C-H...O interaction to form a helical chain propagating in [010]. While there are no ?-? stacking interactions present, there are weak C-H...? interactions involving the naphthalene arom. rings, which link the helical chains to form a two-dimensional network in the (011) plane. [on SciFinder(R)]
  • Publication
    Métadonnées seulement
    1,4-Bis(hexyloxy)-2,5-diiodobenzene
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Sereda, Olha
    ;
    Neels, Antonia
    ;
    Stoeckli-Evans, Helen 
    The centrosym. title compd., C18H28I2O2, crystd. in the monoclinic space group P21/c with the alkyl chains having extended all-trans conformations, similar to those in the centrosym. bromo analog that crystd. in the triclinic space group P?1. The difference between the 2 structures lies in the orientation of the 2 alkyl chains with respect to the C(arom.)-O bond. In the title compd., the O-Calkyl-Calkyl-Calkyl torsion angle is 55.8(5)°, while in the bromo analog this angle is -179.1(2)°. In the title compd., the C-atoms of the alkyl chain are almost coplanar [max. deviation of 0.052(5) Å] and this mean plane is inclined to the benzene ring by 50.3(3)°. In the bromo-analog, these 2 mean planes are almost coplanar, making a dihedral angle of 4.1(2)°. Another difference between the crystal structures of the 2 compds. is that in the title compd. there are no halide...halide interactions. Instead, symmetry-related mols. are linked via C-H...? contacts, forming a 2D network. Crystal data: monoclinic, P21/n, a = 9.441(9), b = 7.8455(6), c = 13.457(2) Å, ? = 92.148(12)°, Z = 2, 1216 obsd. reflections with I > 2(I), 101 refined parameters, R[F2 > 2?(F2)] = 0.029, wR(F2) = 0.055. [on SciFinder(R)]
  • Publication
    Métadonnées seulement
    1,4-Bis[4-(tert-butyldiphenylsilyl)buta-1,3-diynyl]benzene
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Stoeckli-Evans, Helen 
    The title centrosym. mol., C46H42Si2, is composed of a central benzene ring with buta-1,3-diynyl chains at positions 1 and 4. These chains are terminated by tert-butyldiphenylsilyl groups, hence the mol. is dumbbell in shape. The mols. are connected via C-H...? interactions in the structure, so forming an undulating 2D network in the bc plane. There is also a weak ?-? interaction involving centrosym. related Ph rings with a centroid-centroid distance of 3.8359(11) Å. Crystal data: monoclinic, P21/c, a = 8.535(1), b = 17.2060(14), c = 13.4923(14) Å, ? = 104.064(9)°, Z = 2, 3260 obsd. reflections with I > 2(I), 220 refined parameters, R[F2 > 2?(F2)] = 0.044, wR(F2) = 0.104. [on SciFinder(R)]
  • Publication
    Métadonnées seulement
    2-(2-Naphth-yl)-1,3-dioxane
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Stoeckli-Evans, Helen 
    The title compound, C(14)H(14)O(2), crystallizes in the chiral monoclinic space group P2(1). This acetal is composed of a planar naphthalene ring with a 1,3-dioxane ring substituent, which has a chair conformation. In the crystal structure, symmetry-related mol-ecules are connected via a weak C-H(midline ellipsis)O inter-action to form a helical chain propagating in [010]. While there are no ?-? stacking inter-actions present, there are weak C-H(midline ellipsis)? inter-actions involving the naphthalene aromatic rings, which link the helical chains to form a two-dimensional network in the (011) plane.
  • Publication
    Métadonnées seulement
    1,4-Bis[4-(tert-butyl-diphenyl-silyl)buta-1,3-diyn-yl]benzene
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Stoeckli-Evans, Helen 
    The title centrosymmetric mol-ecule, C(46)H(42)Si(2), is composed of a central benzene ring with buta-1,3-diynyl chains at positions 1 and 4. These chains are terminated by tert-butyl-diphenyl-silyl groups, hence the molecule is dumbbell in shape. The mol-ecules are connected via C-H(midline ellipsis)? inter-actions in the structure, so forming an undulating two-dimensional network in the bc plane. There is also a weak ?-? inter-action involving centrosymmetrically related phenyl rings with a centroid-centroid distance of 3.8359 (11) Ã….
  • Publication
    Accès libre
    2-(2-Naphthyl)-1,3-dioxane
    (2010)
    Thevenet, Damien 
    ;
    Neier, Reinhard 
    ;
    Stoeckli-Evans, Helen 
    The title compound, C14H14O2, crystallizes in the chiral monoclinic space group P21. This acetal is composed of a planar naphthalene ring with a 1,3-dioxane ring substituent, which has a chair conformation. In the crystal structure, symmetry-related molecules are connected via a weak C-H ··· O interaction to form a helical chain propagating in [010]. While there are no - stacking interactions present, there are weak C-H ··· π interactions involving the naphthalene aromatic rings, which link the helical chains to form a two-dimensional network in the (011) plane.