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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 871-876 
    ISSN: 0044-2313
    Keywords: 1,3,5-trimethyl-tetrahydro-1,3,5-triazinium-iodide ; 1,3,5-trimethyl-tetrahydro-1,3,5-triazinium-triiodide ; 1,3,5-trimethyl-tetrahydro-1,3,5-triazinium-pentaiodide ; iodine, polyiodide ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Formation of cyclic Amidiniumiodides and -polyiodides from 1,3,5-Trimethyl-hexahydro-1,3,5-triazine and IodineThe reaction of 1,3,5-trimethyl-hexahydro-1,3,5-triazine (CH3NCH2)3 with iodine in the molar ratio (CH3NCH2)3:I2 = 2:1 gives the new compound 1,3,5-trimethyl-tetrahydro-1,3,5-triazinium-iodide C6H14N3I. This iodide adds one mole I2 and forms 1,3,5-trimethyl-tetrahydro-1,3,5-triazinium-triiodide C6H14N3I3. The crystal structure analysis shows a cation, in which two methyl groups and five ring atoms are planar arranged. The third methyl group stands axial to the ring. 1,3,5-Trimethyl-tetrahydro-1,3,5-triazinium-pentaiodide is formed by adding a further mole I2.
    Notes: Die Umsetzung von 1,3,5-Trimethyl-hexahydro-1,3,5-triazin (CH3NCH2)3 mit Iod im Molverhältnis (CH3NCH2)3: I2 = 2:1 ergibt die bislang unbekannte Verbindung 1,3,5-Trimethyl-tetrahydro-1,3,5-triazinium-iodid C6H14N3I. Diese Verbindung lagert ein Mol I2 an und bildet 1,3,5-Trimethyl-tetrahydro-1,3,5-triazinium-triiodid C6H14N3I3. Die Kristallstrukturanalyse zeigt ein Kation, in dem zwei Alkylgruppen gemeinsam mit fünf Ringatomen planar angeordnet sind. Die dritte Alkylgruppe steht axial zum Ring. 1,3,5-Trimethyl-tetrahydro-1,3,5-triazinium-triiodid addiert ein weiteres Äquivalent I2 unter Bildung des entsprechenden Pentaiodids.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0044-2313
    Keywords: Crystal Structures ; Polyiodides ; Iodide ; Triiodide ; Pentaiodide ; Heptaiodide ; 1,3,5-Trialkyl-tetrahydro-1,3,5-triazinium Ions ; 1,3,5-Trimethyl-tetrahydro-1,3,5-triazinium Ion ; 1,3,5-Triethyl-tetrahydro-1,3,5-triazinium Ion ; 1,3,5-Tri-iso-propyl-tetrahydro-1,3,5-triazinium Ion ; 1,3,5-Tri-tertiarybutyl-tetrahydro-1,3,5-triazinium Ion ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Studies on Polyhalides. 28. Further Investigations on 1,3,5-Trialkyl-tetrahydro-1,3,5-triazinium Polyiodides RTazIx: Preparation and Crystal Structure Analysis of the Compounds EtTazI3, i-PrTazIx with x = 3 and 5 and t-BuTazIx with x = (1), 3, 5 and 7The salts RTazIx with R = Et, i-Pr and t-Bu and 3 ≤ x ≤ 7 are formed by the reaction of 1,3,5-trialkyl-tetrahydro-1,3,5-triazinium iodide RTazI with iodine I2 from ethanoleous solution. 1,3,5-Triethyl-tetrahydro-1,3,5-triazinium triiodide C9H20N3I3 crystallizes triclinically in P1 with a = 773.5(1) pm, b = 842.8(1) pm, c = 1370.4(3) pm, α = 94.16(1)°, β = 97.34(1)°, γ = 106.35(1)° and Z = 2. The crystal structure is stacked by layers of cations EtTaz+ and of linear symmetric triiodide ions I3- alternating along [0 0 1]. 1,3,5-Tri-iso-propyl-tetrahydro-1,3,5-triazinium triiodide C12H26N3I3 crystallizes triclinically in P1 with a = 822.0(1) pm, b = 832.1(2) pm, c = 1553.6(2) pm, α = 78.26(1)°, β = 76.21(1)°, γ = 77.23(1)° and Z = 2. The crystal structure is built up from layers of cations i-PrTaz+ and of linear symmetric triiodide ions I3- alternating along [0 0 1]. 1,3,5-Tri-iso-propyl-tetrahydro-1,3,5-triazinium pentaiodide C12H26N3I5 crystallizes monoclinically in P21/c with a = 1015.4(2) pm, b = 1278.9(1) pm, c = 1811.3(2) pm, β = 92.47(1)° and Z = 4. The cationic (i-PrTaz+) and anionic (isolated V-shaped I5-) double layers alternate along [0 0 1]. 1,3,5-Tri-tertiary-butyl-tetrahydro-1,3,5-triazinium iodide C15H32N3I crystallizes monoclinically in P21/n with a = 863.9(1) pm, b = 1655.9(2) pm, c = 1307.6(1) pm, β = 92.90(1)° and Z = 4. Mixed layers built up from cations t-BuTaz+ and anions I- follow along [0 1 0]. 1,3,5-Tri-tertiary-butyl-tetrahydro-1,3,5-triazinium triiodide C15H32N3I3 crystallizes orthorhombically in Fdd2 with a = 1772.0(4) pm, b = 2477.8(6) pm, c = 2273.4(5) pm and Z = 16. The crystal structure is stacked by mixed layers of cations t-BuTaz+ and linear symmetric anions I3-. 1,3,5-Tri-tertiary-butyl-tetrahydro-1,3,5-triazinium pentaiodide C15H32N3I5 crystallizes monoclinically in C2/m with a = 1219.5(3) pm, b = 1420.9(3) pm, c = 1539.5(3) pm, β = 94.54(2)° and Z = 4. The crystal structure is built up from alternating cationic (t-BuTaz+) and anionic (symmetry generated I5-) double layers along [1 0 0]. The triiodide parts of different anionic double layers are linked up by iodine bridges I2 to zickzack chains. 1,3,5-Tri-tertiary-butyl-tetrahydro-1,3,5-triazinium heptaiodide C15H32N3I7 crystallizes monoclinically in P21/c with a = 1036.0(2) pm, b = 1768.3(4) pm, c = 1699.5(4) pm, β = 103.11(2)° und Z = 4. The crystal structure shows a three-dimensional network made by the alternating linkage of trigonal-pyramidal and Z-shaped heptaiodide ions.
    Notes: Die Verbindungen EtTazI3, i-PrTazIx mit x = 3 und 5 und t-BuTazlx mit x = 3, 5 und 7 lassen sich durch Umsetzung der entsprechenden 1,3,5-Trialkyl-tetrahydro-1,3,5-triazinium-iodide RTazI mit lod aus ethanolischer Lösung gewinnen. 1,3,5-Triethyltetrahydro-1,3,5-triaziniumtriiodid C9H20N3I3 kristallisiert in der triklinen Raumgruppe P1 mit a = 773,5(1) pm, b = 842,8(1) pm, c = 1370,4(3) pm, α = 94,16(1)°, β = 97,34(1)°, γ = 106,35(1)° und Z = 2. In der Kristallstruktur wechseln sich Schichten aus Kationen EtTaz+ und isolierten zentrosymmetrischen Anionen I3- längs [0 0 1] ab. 1,3,5-Tri-iso-propyl-tetrahydro-1,3,5-triazinium-triiodid C12H26N3I3 kristallisiert in der triklinen Raumgruppe P1 mit a = 822,0(1) pm, b = 832,1(2) pm, c = 1553,6(2) pm, α = 78,26(1)°, β = 76,21(1)°, γ = 77,23(1)° und Z = 2. In der Kristallstruktur folgen entlang [0 0 1] im Wechsel Schichten aus Kationen i-PrTaz+ und aus isolierten zentrosymmetrischen Anionen I3-. 1,3,5-Tri-iso-propyl-tetrahydro-1,3,5-triazinium-pentaiodid C12H26N3I5 kristallisiert in der monoklinen Raumgruppe P21/c mit a = 1015,4(2) pm, b = 1278,9(1) pm, c = 1811,3(2) pm, β = 92,47(1)° und Z = 4. In der Kristallstruktur ordnen sich längs [0 0 1] abwechselnd Kationen i-PrTaz+ und isolierte stark verengte V-förmige Anionen I5- zu Doppelschichten an. 1,3,5-Tri-tertiär-butyl-tetrahydro-1,3,5-triazinium-iodid C15H32N3I kristallisiert in der monoklinen Raumgruppe P21/n mit a = 863,9(1) pm, b = 1655,9(2) pm, c = 1307,6(1) pm, β = 92,90(1)° und Z = 4. In der Kristallstruktur befinden sich längs [0 1 0] Kationen t-BuTaz+ und Anionen I- in gemischten Schichten. 1,3,5-Tritertiär-butyl-tetrahydro-1,3,5 triaziniunm-triiodid C15H32N3I3 kristallisiert in der orthorhombischen Raumgruppe Fdd2 mit a = 1772,0(4) pm, b = 2477,8(6) pm, c = 2273,4(5) pm und Z = 16. In der Kristallstruktur folgen entlang [1 0 0] gemischte Schichten von Kationen t-BuTaz+ und isolierten zentrosymmetrischen Anionen I3-. 1,3,5-Tri-tertiär-butyl-tetrahydro-1,3,5-triazinium-pentaiodid C15H32N3I5 kristallisiert in der monoklinen Raumgruppe C2/m mit a = 1219,5(3) pm, b = 1420,9(3) pm, c = 1539,5(3) pm, β = 94,54(2)° und Z = 4. In der Kristallstruktur wechseln sich längs [1 0 0] Doppelschichten von Kationen t-BuTaz+ und symmetrieerzeugten Anionen I5- ab, deren Triiodid-artige Schenkel entlang [0 1 0] über Iod-Brücken zu zickzackförmigen Ketten verknüpft werden. 1,3,5-Tri-tertiär-butyl-tetrahydro-1,3,5-triazinium-heptaiodid C15H32N3I7 kristallisiert in der monoklinen Raumgruppe P21/c mit a = 1036,0(2) pm, b = 1768,3(4) pm, c = 1699,5(4) pm, β = 103,11(2)° und Z = 4. Die Kristallstruktur baut sich längs [0 0 1] aus vernetzten stark gewellten Doppelketten von fehlgeordneten Anionen I7- auf, in deren Zwischenräumen sich die Kationen t-BuTaz+ befinden.
    Additional Material: 15 Ill.
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  • 3
    ISSN: 1042-7163
    Keywords: Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: N,N′-Dineopentyl-2,3-diaminonaph-thalene 1, obtained by reaction of 2,3-diaminonaph-thalene with pivaloyl chloride and subsequent re-duction, was dilithiated and cyclodisubstituted with SiCl4 to give dichloro-dineopentyl-naphtho[2,3-d]-1,3,2-diazasilole 2. Treatment of 2 with two equivalents of potassium in THF caused cleavage of the Si-N ring. A silylene could not be detected. The corresponding cyclic diaminogermylene 3 and diamino-stannylene 4 were obtained by direct ring closure of 1-Li2 with GeCl2·dioxane or SnCl2, respectively. The compounds are structurally characterized by NMR and MS. The properties of 3 and 4 are compared with those of related germylenes and stannylenes. © 1998 John Wiley & Sons, Inc. Heteroatom Chem 9:439-444, 1998
    Type of Medium: Electronic Resource
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