FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2007158240> ?p ?o ?g. }

• W2007158240 endingPage "765" @default.
• W2007158240 startingPage "757" @default.
• W2007158240 abstract "[TMPA]4[Si8O20] · 34 H2O (1) and [DDBO]4[Si8O20] · 32 H2O (2) have been prepared by crystallization from aqueous solutions of the respective quaternary alkylammonium hydroxide and SiO2. The crystal structures have been determined by single-crystal X-ray diffraction. 1: Monoclinic, a = 16.056(2), b = 22.086(6), c = 22.701(2) Å, β = 90.57(1)° (T = 210 K), space group C2/c, Z = 4. 2: Monoclinic, a = 14.828(9), b = 20.201(7), c = 15.519(5) Å, β = 124.13(4)° (T = 255 K), space group P21/c, Z = 2. The polyhydrates are structurally related host-guest compounds with three-dimensional host frameworks composed of oligomeric [Si8O20]8− anions and H2O molecules which are linked via hydrogen bonds. The silicate anions possess a cube-shaped double four-ring structure and a characteristic local environment formed by 24 H2O molecules and six cations (TMPA, [C8H20N2]2+, or DDBO, [C8H18N2]2+). The cations themselves reside as guest species in large, irregular, cage-like voids. Studies employing 29Si NMR spectroscopy and the trimethylsilylation method have revealed that the saturated aqueous solutions of 1 and 2 contain high proportions of double four-ring silicate anions. Such anions are also abundant species in the saturated solution of the heteronetwork clathrate [DMPI]6[Si8O18(OH)2] · 48.5 H2O (3) with 1,1-dimethylpiperidinium (DMPI, [C7H16N]+) guest cations. [TMPA]4[Si8O20] · 34 H2O und [DDBO]4[Si8O20] · 32 H2O sind Heteronetzwerk-Clathrate mit 1,1,4,4-Tetramethylpiperazinium (TMPA) und 1,4-Dimethyl-1,4-Diazoniabicyclo[2.2.2]octan (DDBO) Gastkationen [TMPA]4[Si8O20] · 34 H2O (1) und [DDBO]4[Si8O20] · 32 H2O (2) wurden durch Kristallisation aus wäßrigen Lösungen der entsprechenden quartären Alkylammoniumhydroxide und SiO2 erhalten. Die Kristallstrukturen wurden mittels Einkristallröntgenbeugung bestimmt. 1: Monoklin, a = 16,056(2), b = 22,086(6), c = 22,701(2) Å, β = 90,57(1)° (T = 210 K), Raumgruppe C2/c, Z = 4. 2: Monoklin, a = 14,828(9), b = 20,201(7), c = 15,519(5) Å, β = 124,13(4)° (T = 255 K), Raumgruppe P21/c, Z = 2. Die Polyhydrate sind strukturverwandte Wirt–Gast-Verbindungen mit dreidimensionalen Wirtstrukturen aus über Wasserstoffbrücken verknüpften oligomeren Anionen [Si8O20]8− und H2O-Molekülen. Die Silicat-Anionen haben eine würfelförmige Doppelvierring-Struktur und eine lokale Umgebung, die von 24 H2O-Molekülen und sechs Kationen (TMPA, [C8H20N2]2+, oder DDBO, [C8H18N2]2+) gebildet wird. Die Kationen befinden sich als Gastspezies in großen, unregelmäßigen, käfigartigen Hohlräumen. Untersuchungen mittels der 29Si-NMR-Spektroskopie und der Trimethylsilylierungsmethode haben gezeigt, daß die gesättigten Lösungen von 1 und 2 hohe Anteile an Doppelvierring-Anionen enthalten. Derartige Anionen sind auch in der gesättigten Lösung des Heteronetzwerk-Clathrats [DMPI]6[Si8O18(OH)2] · 48,5 H2O (3) mit 1,1-Dimethylpiperidinium-Kationen (DMPI, [C7H16N]+) als Gastspezies enthalten." @default.
• W2007158240 created "2016-06-24" @default.
• W2007158240 creator A5019536570 @default.
• W2007158240 creator A5033827771 @default.
• W2007158240 creator A5034313875 @default.
• W2007158240 creator A5039601762 @default.
• W2007158240 creator A5076892747 @default.
• W2007158240 date "1994-04-01" @default.
• W2007158240 modified "2023-09-23" @default.
• W2007158240 title "[TMPA]4[Si8O20] � 34 H2O and [DDBO]4[Si8O20] � 32 H2O are heteronetwork clathrates with 1,1,4,4-tetramethylpiperazinium (TMPA) and 1,4-dimethyl-1,4-diazoniabicyclo[2.2.2]octane (DDBO) guest cations" @default.
• W2007158240 cites W1967956773 @default.
• W2007158240 cites W1971460349 @default.
• W2007158240 cites W1975299796 @default.
• W2007158240 cites W1975592963 @default.
• W2007158240 cites W1975912591 @default.
• W2007158240 cites W1978067019 @default.
• W2007158240 cites W2010101396 @default.
• W2007158240 cites W2012068802 @default.
• W2007158240 cites W2018669437 @default.
• W2007158240 cites W2033869281 @default.
• W2007158240 cites W2037575542 @default.
• W2007158240 cites W2038635850 @default.
• W2007158240 cites W2040936889 @default.
• W2007158240 cites W2042602209 @default.
• W2007158240 cites W2049043909 @default.
• W2007158240 cites W2051203257 @default.
• W2007158240 cites W2055944345 @default.
• W2007158240 cites W2073512708 @default.
• W2007158240 cites W2078809773 @default.
• W2007158240 cites W2092955240 @default.
• W2007158240 cites W2111277987 @default.
• W2007158240 cites W2118954009 @default.
• W2007158240 cites W2490244679 @default.
• W2007158240 cites W2949179899 @default.
• W2007158240 cites W2950087840 @default.
• W2007158240 cites W3197147952 @default.
• W2007158240 cites W4205726323 @default.
• W2007158240 cites W4237821540 @default.
• W2007158240 cites W4256558285 @default.
• W2007158240 cites W4300611374 @default.
• W2007158240 doi "https://doi.org/10.1002/zaac.19946200430" @default.
• W2007158240 hasPublicationYear "1994" @default.
• W2007158240 type Work @default.
• W2007158240 sameAs 2007158240 @default.
• W2007158240 citedByCount "13" @default.
• W2007158240 countsByYear W20071582402018 @default.
• W2007158240 countsByYear W20071582402022 @default.
• W2007158240 crossrefType "journal-article" @default.
• W2007158240 hasAuthorship W2007158240A5019536570 @default.
• W2007158240 hasAuthorship W2007158240A5033827771 @default.
• W2007158240 hasAuthorship W2007158240A5034313875 @default.
• W2007158240 hasAuthorship W2007158240A5039601762 @default.
• W2007158240 hasAuthorship W2007158240A5076892747 @default.
• W2007158240 hasBestOaLocation W20071582402 @default.
• W2007158240 hasConcept C100402318 @default.
• W2007158240 hasConcept C112887158 @default.
• W2007158240 hasConcept C115624301 @default.
• W2007158240 hasConcept C147789679 @default.
• W2007158240 hasConcept C178790620 @default.
• W2007158240 hasConcept C184651966 @default.
• W2007158240 hasConcept C185592680 @default.
• W2007158240 hasConcept C2776624427 @default.
• W2007158240 hasConcept C2781060337 @default.
• W2007158240 hasConcept C32909587 @default.
• W2007158240 hasConcept C61276311 @default.
• W2007158240 hasConcept C8010536 @default.
• W2007158240 hasConceptScore W2007158240C100402318 @default.
• W2007158240 hasConceptScore W2007158240C112887158 @default.
• W2007158240 hasConceptScore W2007158240C115624301 @default.
• W2007158240 hasConceptScore W2007158240C147789679 @default.
• W2007158240 hasConceptScore W2007158240C178790620 @default.
• W2007158240 hasConceptScore W2007158240C184651966 @default.
• W2007158240 hasConceptScore W2007158240C185592680 @default.
• W2007158240 hasConceptScore W2007158240C2776624427 @default.
• W2007158240 hasConceptScore W2007158240C2781060337 @default.
• W2007158240 hasConceptScore W2007158240C32909587 @default.
• W2007158240 hasConceptScore W2007158240C61276311 @default.
• W2007158240 hasConceptScore W2007158240C8010536 @default.
• W2007158240 hasIssue "4" @default.
• W2007158240 hasLocation W20071582401 @default.
• W2007158240 hasLocation W20071582402 @default.
• W2007158240 hasOpenAccess W2007158240 @default.
• W2007158240 hasPrimaryLocation W20071582401 @default.
• W2007158240 hasRelatedWork W1970405244 @default.
• W2007158240 hasRelatedWork W1991883810 @default.
• W2007158240 hasRelatedWork W2031538813 @default.
• W2007158240 hasRelatedWork W2034237503 @default.
• W2007158240 hasRelatedWork W2046677950 @default.
• W2007158240 hasRelatedWork W2067967944 @default.
• W2007158240 hasRelatedWork W2372854264 @default.
• W2007158240 hasRelatedWork W2463657710 @default.
• W2007158240 hasRelatedWork W646380683 @default.
• W2007158240 hasRelatedWork W3092351491 @default.
• W2007158240 hasVolume "620" @default.
• W2007158240 isParatext "false" @default.
• W2007158240 isRetracted "false" @default.
• W2007158240 magId "2007158240" @default.
• W2007158240 workType "article" @default.