Dagobert Thiery - Academia.edu (original) (raw)
Papers by Dagobert Thiery
ChemInform, 2010
ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
![Research paper thumbnail of Kristallstrukturen von [P(C6H5)4]2[B6Cl6](CH3CN)2 und [P(C6H5)4]2[B6Br6](CH3CN)2 sowie Schwingungsspektren und Normalkoordinatenanalyse der isotopomeren closo-Hexahalogenohexaborate [11Bn 10B6-nX6]2-, Χ = Cl, Br; n = 0-6 / Crystal Structures of [P(C6H5)4]2[B6Cl6](CH3CN)2 and [P(C6H5)4]2[B6Br6](CH...](https://attachments.academia-assets.com/119228253/thumbnails/1.jpg)
](Zeitschrift für Naturforschung B, 1991
The crystal structures of (TPP)2[B6Cl6](CH3CN)2 and (TPP)2[B6Br6](CH3CN)2 were determined from si... more The crystal structures of (TPP)2[B6Cl6](CH3CN)2 and (TPP)2[B6Br6](CH3CN)2 were determined from single crystal X-ray diffraction analyses at 147 K. They are triclinic, space group P1̅, and contain nearly regular octahedral anions with bond lengths d(B-B) 1.716, d(B-Cl) 1.818 for [B6Cl6]2- and d̅(B-B) 1.684, d̅(B-Br) 1.993 Å for [B6Br6]2-. Using these molecular data, normal coordinate analyses for the ten isotopomers [11Bn 10B6-nX6]2-, n = 0-6, X = Cl, Br, including the pairs of geometric isomers for n = 2, 3, 4 have been performed, based on a general valence force field. With a set of 8 force constants for Cs2[B6Br6] (e.g. fd(BB) = 1.39, fd(BBr) = 3.18 mdyn/Å) and 10 for Cs2[B6Cl16] (e. g. fd(BB) = 1.30, fd(BCl) = 4.01 mdyn/Å) the calculated frequencies are in good agreement with observed IR (10 K) and Raman bands (80 K) in natural abundance as well as for 11B- and 10B-enriched derivatives. For the series [B6X6]2-, X = Cl, Br, I the correlation of decreasing bond lengths d(B-B) and i...
![Research paper thumbnail of [Al2P4]6-, [Al2As4]6-, [Ga2P4]6- und [Ga2As4]6-, Zintl-Anionen mit 1,3-Dimethylencyclobutan-Struktur / [Al2P4]6-, [Al2As4]6-, [Ga2P4]6- and [Ga2As4]6-, Zintl Anions with 1.3-Dimethylene-cyclobutane Structure](https://attachments.academia-assets.com/119228252/thumbnails/1.jpg)
](Zeitschrift für Naturforschung B, 1991
The compounds Cs6M2X4 (M = Al, Ga; X = P, As) were synthesized from stoichiometric mixtures of Cs... more The compounds Cs6M2X4 (M = Al, Ga; X = P, As) were synthesized from stoichiometric mixtures of Cs, M and Cs4X6 in sealed Nb ampoules at 950 K. They are isotypic and crystallize in the monoclinic space group P21/c (No. 14) with Z = 4 formula units per unit cell. The anion partial structure is characterized by isolated [M2X4]6- units with relatively short distances for the terminal d(M–X) bonds corresponding to a Pauling Bond Order PBO = 1.5. The distances d(M–X) of the four-membered M2X2 rings correspond to single bonds. The FIR spectra have been interpreted on the basis of the [M2X4]6- units with 2/m 2/m 2/m-D2h, symmetry by considering a factor group splitting. The assignment of the observed frequencies is supported by a normal coordinate analysis.
Zeitschrift für Naturforschung B, 1990
Dimeric 1,2-Dioxyphenylene-dichloride (1) crystallizes dimorphically. The already known monoclini... more Dimeric 1,2-Dioxyphenylene-dichloride (1) crystallizes dimorphically. The already known monoclinic m-form (space group P21/α) is the thermodynamically stable modification and can be obtained by sublimation. The novel triclinic α-form (space group P1̄) is a metastable modification and can be obtained from CH2Cl2 solution. The α-form crystallizes with a = 591.7(5) pm; b = 1457.0(8) pm; c = 991.7(6) pm; α = 96.68(3)°; β = 106.29(3)°; γ = 91.48(3)° and Z = 4 formula units (2 dimers). The molecules of the a- and the m-form are identical with respect to bond distances, bond angles and their conformations, but they are different in their spatial arrangement. The melting point of the α-form is 126.5 °C, of the m-form 140.0 °C. The melt of 1 solidifies as a glass from which the α-form recrystallizes.
Zeitschrift für anorganische und allgemeine Chemie, 1994
Derivate des para‐substituierten N‐(Tri‐t‐butoxysilyl)anilins (t‐BuO)3SiNRC6H4X‐p, R = H, CH3 mit... more Derivate des para‐substituierten N‐(Tri‐t‐butoxysilyl)anilins (t‐BuO)3SiNRC6H4X‐p, R = H, CH3 mit Substituenten hoher Elektronenaffinität (X = CN, NO2) wurden nach einem neuen Eintopfverfahren aus Tri‐t‐butoxychlorsilan, Kalium‐t‐butanolat und dem entsprechend substituierten Anilin dargestellt. Für Substituenten niederer Elektronenaffinität (X = OMe, H) wird die Methode der Metallierung von Anilinen mit Natriumamid bevorzugt. Vier Kristallstrukturen wurden bestimmt. N‐(Tri‐t‐butoxysilyl)‐p‐nitroanilin, N‐Methyl‐(N‐tri‐t‐butoxysilyl)‐p‐nitroanilin und N‐(Tri‐t‐butoxysilyl)‐p‐cyanoanilin kristallisieren bei 298 K monoklin, N‐(Tri‐t‐butoxysilyl)anilin kristallisiert orthorhombisch.
Polyhedron, 1992
The reaction of Si(OMe)4 with catechol (1,2-(H0)2C6H4) in toluene at 70°C yields a colourless com... more The reaction of Si(OMe)4 with catechol (1,2-(H0)2C6H4) in toluene at 70°C yields a colourless compound, which we believe to be Si(02C6H4)2(MeOH)2 (1). Compound 1 reacts with excess OPR3 (R = Ph, NCSH,,J in CH2C12 yielding the penta-coordinate complexes Si(02C6H4)2(0PPh3) (2) and Si(02C6H4)2{0P(NC5H1,,)3} * CH2C12 (3). Crystal structure investigations of 2 and 3 reveal a distorted trigonal bipyramidal environment for the silicon atom in 2, while 3 shows a nearly square pyramidal coordination. In the mass spectrum, 1,2 and 3 exhibit ion peaks for monomeric Si(02C6H4)2 and the donor ligand at temperatures above the melting points.
Zeitschrift für Kristallographie, 1991
Source of material: The compound may be prepared from KP, GaP and Rb (1:1:3) in a sealed steel am... more Source of material: The compound may be prepared from KP, GaP and Rb (1:1:3) in a sealed steel ampoule at 950 K. The excess of alkali metal (Rb and K) is removed by high vacuum distillation at 525 K. The compound (isotypic to Rb3GaP2, see ref. 1 and ref. 2) contains slightly bent dimeric anions [Ga2P4]6~w ith the average bond lengths d(Ga-P)exo = 2.236(4) A and d(Ga-P)endo = 2.361(4) A (see ref. 3).
Zeitschrift für Kristallographie, 1991
Source of material: The compound may be prepared from KAs, GaAs and Cs (1:1:3) in a sealed Nb-amp... more Source of material: The compound may be prepared from KAs, GaAs and Cs (1:1:3) in a sealed Nb-ampoule at 950 K. The excess of alkali metals (Cs and K) is removed by high vacuum distillation at 525 K. The anionic partial structure of the compound is characterized by the slightly bent dimeric anions [Ga2As4]6~(see ref. 1 and ref. 2) with the average bond lengths (Ga-As)exo = 2.336(3) A and d(Ga-As)endo = 2.462(3) A (see ref. 3). Orthorhombic, Pbca (no 61), a = 15.033(4), b = 26.162(5), c = 9.691(3) A
Zeitschrift für Kristallographie, 1992
Zeitschrift für Kristallographie, 1990
Zeitschrift für Kristallographie, 1993
The crystal structure of Gel4 was refined using 100 K and 297 K X-ray data. Gel4 crystallizes in ... more The crystal structure of Gel4 was refined using 100 K and 297 K X-ray data. Gel4 crystallizes in the cubic space group P2x\c(l (No 205) with a = 11.861(1) A at 100 K and 12.0303(6) Â at 297 K. Analysis of the displacement parameters gives no hint for rigid body motion.
Zeitschrift für Kristallographie, 1991
The reaction of Si(02C6H4)2(Me0H)x (x = 1 2 ) with Ph4PCl yields besides other products crystals ... more The reaction of Si(02C6H4)2(Me0H)x (x = 1 2 ) with Ph4PCl yields besides other products crystals of [PPI14] [(μ-Cl) {l,2-(HO)2C6H4}] (/), in which the anion consists of a chloride ion solvated by the catechol molecule via the hydrogen atoms. No anion-cation interactions are observed. 1 crystallises in the monoclinic space group FIJn (No. 14) (T= 295 K) with a = 13.661(4), b = 16.059(5), c = 12.640(4) Â, β = 112.68(5)°, V = 2558.5 Â and Ζ = 4. The refinement gives the final R values R = 0.078 and Rw = 0.053 for 1940 observed symmetry-independent reflections.
Zeitschrift für Kristallographie, 1991
Source of material: The compound may be prepared from KP, GaP and Cs (1:1:3) in a sealed steel am... more Source of material: The compound may be prepared from KP, GaP and Cs (1:1:3) in a sealed steel ampoule at 950 K. The excess of alkaline metals (Cs and K) is removed by high vacuum distillation at 525 K. The compound (isotypic to Rb3GaP2, see ref. 1) contains sligthly bent dimeric anions [Ga2P4]6~w ith the average bond lengths d(Ga-P)exo = 2.232(7) Ä and d(Ga-P)endo = 2.363(6) Ä. Orthorhombic, Pbca (no 61), a = 14.856(4), b = 25.467(6), c = 9.490(2) Ä, V = 3590.3 Ä3, Z = 8, R = 0.078.
Zeitschrift f�r Physik B Condensed Matter, 1990
Zeitschrift für Kristallographie - Crystalline Materials, 1993
The crystal structure of Gel 4 was refined using 100 Κ and 297 Κ X-ray data. Gel 4 crystallizes i... more The crystal structure of Gel 4 was refined using 100 Κ and 297 Κ X-ray data. Gel 4 crystallizes in the cubic space group P2i/a3 (No 205) with a = 11.861(1) A at 100 Κ and 12.0303(6) Ä at 297 K. Analysis of the displacement parameters gives no hint for rigid body motion.
Zeitschrift für Kristallographie, 1990
ChemInform, 2010
ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance t... more ABSTRACT ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Zeitschrift für Naturforschung B, 1991
The crystal structures of (TPP)2[B6Cl6](CH3CN)2 and (TPP)2[B6Br6](CH3CN)2 were determined from si... more The crystal structures of (TPP)2[B6Cl6](CH3CN)2 and (TPP)2[B6Br6](CH3CN)2 were determined from single crystal X-ray diffraction analyses at 147 K. They are triclinic, space group P1̅, and contain nearly regular octahedral anions with bond lengths d(B-B) 1.716, d(B-Cl) 1.818 for [B6Cl6]2- and d̅(B-B) 1.684, d̅(B-Br) 1.993 Å for [B6Br6]2-. Using these molecular data, normal coordinate analyses for the ten isotopomers [11Bn 10B6-nX6]2-, n = 0-6, X = Cl, Br, including the pairs of geometric isomers for n = 2, 3, 4 have been performed, based on a general valence force field. With a set of 8 force constants for Cs2[B6Br6] (e.g. fd(BB) = 1.39, fd(BBr) = 3.18 mdyn/Å) and 10 for Cs2[B6Cl16] (e. g. fd(BB) = 1.30, fd(BCl) = 4.01 mdyn/Å) the calculated frequencies are in good agreement with observed IR (10 K) and Raman bands (80 K) in natural abundance as well as for 11B- and 10B-enriched derivatives. For the series [B6X6]2-, X = Cl, Br, I the correlation of decreasing bond lengths d(B-B) and i...
Zeitschrift für Naturforschung B, 1991
The compounds Cs6M2X4 (M = Al, Ga; X = P, As) were synthesized from stoichiometric mixtures of Cs... more The compounds Cs6M2X4 (M = Al, Ga; X = P, As) were synthesized from stoichiometric mixtures of Cs, M and Cs4X6 in sealed Nb ampoules at 950 K. They are isotypic and crystallize in the monoclinic space group P21/c (No. 14) with Z = 4 formula units per unit cell. The anion partial structure is characterized by isolated [M2X4]6- units with relatively short distances for the terminal d(M–X) bonds corresponding to a Pauling Bond Order PBO = 1.5. The distances d(M–X) of the four-membered M2X2 rings correspond to single bonds. The FIR spectra have been interpreted on the basis of the [M2X4]6- units with 2/m 2/m 2/m-D2h, symmetry by considering a factor group splitting. The assignment of the observed frequencies is supported by a normal coordinate analysis.
Zeitschrift für Naturforschung B, 1990
Dimeric 1,2-Dioxyphenylene-dichloride (1) crystallizes dimorphically. The already known monoclini... more Dimeric 1,2-Dioxyphenylene-dichloride (1) crystallizes dimorphically. The already known monoclinic m-form (space group P21/α) is the thermodynamically stable modification and can be obtained by sublimation. The novel triclinic α-form (space group P1̄) is a metastable modification and can be obtained from CH2Cl2 solution. The α-form crystallizes with a = 591.7(5) pm; b = 1457.0(8) pm; c = 991.7(6) pm; α = 96.68(3)°; β = 106.29(3)°; γ = 91.48(3)° and Z = 4 formula units (2 dimers). The molecules of the a- and the m-form are identical with respect to bond distances, bond angles and their conformations, but they are different in their spatial arrangement. The melting point of the α-form is 126.5 °C, of the m-form 140.0 °C. The melt of 1 solidifies as a glass from which the α-form recrystallizes.
Zeitschrift für anorganische und allgemeine Chemie, 1994
Derivate des para‐substituierten N‐(Tri‐t‐butoxysilyl)anilins (t‐BuO)3SiNRC6H4X‐p, R = H, CH3 mit... more Derivate des para‐substituierten N‐(Tri‐t‐butoxysilyl)anilins (t‐BuO)3SiNRC6H4X‐p, R = H, CH3 mit Substituenten hoher Elektronenaffinität (X = CN, NO2) wurden nach einem neuen Eintopfverfahren aus Tri‐t‐butoxychlorsilan, Kalium‐t‐butanolat und dem entsprechend substituierten Anilin dargestellt. Für Substituenten niederer Elektronenaffinität (X = OMe, H) wird die Methode der Metallierung von Anilinen mit Natriumamid bevorzugt. Vier Kristallstrukturen wurden bestimmt. N‐(Tri‐t‐butoxysilyl)‐p‐nitroanilin, N‐Methyl‐(N‐tri‐t‐butoxysilyl)‐p‐nitroanilin und N‐(Tri‐t‐butoxysilyl)‐p‐cyanoanilin kristallisieren bei 298 K monoklin, N‐(Tri‐t‐butoxysilyl)anilin kristallisiert orthorhombisch.
Polyhedron, 1992
The reaction of Si(OMe)4 with catechol (1,2-(H0)2C6H4) in toluene at 70°C yields a colourless com... more The reaction of Si(OMe)4 with catechol (1,2-(H0)2C6H4) in toluene at 70°C yields a colourless compound, which we believe to be Si(02C6H4)2(MeOH)2 (1). Compound 1 reacts with excess OPR3 (R = Ph, NCSH,,J in CH2C12 yielding the penta-coordinate complexes Si(02C6H4)2(0PPh3) (2) and Si(02C6H4)2{0P(NC5H1,,)3} * CH2C12 (3). Crystal structure investigations of 2 and 3 reveal a distorted trigonal bipyramidal environment for the silicon atom in 2, while 3 shows a nearly square pyramidal coordination. In the mass spectrum, 1,2 and 3 exhibit ion peaks for monomeric Si(02C6H4)2 and the donor ligand at temperatures above the melting points.
Zeitschrift für Kristallographie, 1991
Source of material: The compound may be prepared from KP, GaP and Rb (1:1:3) in a sealed steel am... more Source of material: The compound may be prepared from KP, GaP and Rb (1:1:3) in a sealed steel ampoule at 950 K. The excess of alkali metal (Rb and K) is removed by high vacuum distillation at 525 K. The compound (isotypic to Rb3GaP2, see ref. 1 and ref. 2) contains slightly bent dimeric anions [Ga2P4]6~w ith the average bond lengths d(Ga-P)exo = 2.236(4) A and d(Ga-P)endo = 2.361(4) A (see ref. 3).
Zeitschrift für Kristallographie, 1991
Source of material: The compound may be prepared from KAs, GaAs and Cs (1:1:3) in a sealed Nb-amp... more Source of material: The compound may be prepared from KAs, GaAs and Cs (1:1:3) in a sealed Nb-ampoule at 950 K. The excess of alkali metals (Cs and K) is removed by high vacuum distillation at 525 K. The anionic partial structure of the compound is characterized by the slightly bent dimeric anions [Ga2As4]6~(see ref. 1 and ref. 2) with the average bond lengths (Ga-As)exo = 2.336(3) A and d(Ga-As)endo = 2.462(3) A (see ref. 3). Orthorhombic, Pbca (no 61), a = 15.033(4), b = 26.162(5), c = 9.691(3) A
Zeitschrift für Kristallographie, 1992
Zeitschrift für Kristallographie, 1990
Zeitschrift für Kristallographie, 1993
The crystal structure of Gel4 was refined using 100 K and 297 K X-ray data. Gel4 crystallizes in ... more The crystal structure of Gel4 was refined using 100 K and 297 K X-ray data. Gel4 crystallizes in the cubic space group P2x\c(l (No 205) with a = 11.861(1) A at 100 K and 12.0303(6) Â at 297 K. Analysis of the displacement parameters gives no hint for rigid body motion.
Zeitschrift für Kristallographie, 1991
The reaction of Si(02C6H4)2(Me0H)x (x = 1 2 ) with Ph4PCl yields besides other products crystals ... more The reaction of Si(02C6H4)2(Me0H)x (x = 1 2 ) with Ph4PCl yields besides other products crystals of [PPI14] [(μ-Cl) {l,2-(HO)2C6H4}] (/), in which the anion consists of a chloride ion solvated by the catechol molecule via the hydrogen atoms. No anion-cation interactions are observed. 1 crystallises in the monoclinic space group FIJn (No. 14) (T= 295 K) with a = 13.661(4), b = 16.059(5), c = 12.640(4) Â, β = 112.68(5)°, V = 2558.5 Â and Ζ = 4. The refinement gives the final R values R = 0.078 and Rw = 0.053 for 1940 observed symmetry-independent reflections.
Zeitschrift für Kristallographie, 1991
Source of material: The compound may be prepared from KP, GaP and Cs (1:1:3) in a sealed steel am... more Source of material: The compound may be prepared from KP, GaP and Cs (1:1:3) in a sealed steel ampoule at 950 K. The excess of alkaline metals (Cs and K) is removed by high vacuum distillation at 525 K. The compound (isotypic to Rb3GaP2, see ref. 1) contains sligthly bent dimeric anions [Ga2P4]6~w ith the average bond lengths d(Ga-P)exo = 2.232(7) Ä and d(Ga-P)endo = 2.363(6) Ä. Orthorhombic, Pbca (no 61), a = 14.856(4), b = 25.467(6), c = 9.490(2) Ä, V = 3590.3 Ä3, Z = 8, R = 0.078.
Zeitschrift f�r Physik B Condensed Matter, 1990
Zeitschrift für Kristallographie - Crystalline Materials, 1993
The crystal structure of Gel 4 was refined using 100 Κ and 297 Κ X-ray data. Gel 4 crystallizes i... more The crystal structure of Gel 4 was refined using 100 Κ and 297 Κ X-ray data. Gel 4 crystallizes in the cubic space group P2i/a3 (No 205) with a = 11.861(1) A at 100 Κ and 12.0303(6) Ä at 297 K. Analysis of the displacement parameters gives no hint for rigid body motion.
Zeitschrift für Kristallographie, 1990