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  • Articles: DFG German National Licenses  (2)
  • Caesium iron hydrogen phosphate  (1)
  • organylfluorophosphonates  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Herstellung von Fluorophosphaten, Difluorophosphaten, Fluorophsophonaten und Fluorophosphiten in fluoridhaltigen HarnstoffschmelzenProfessor Helmut Köhler in memoriam (1991)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 600 (1991), S. 221-226 
    Details
    ISSN: 0044-2313
    Keywords: Fluorophosphates ; difluorophosphates ; fluorophosphites ; organylfluorophosphonates ; organylpolyfluorophosphonates ; phosphonoorganylfluorophosphosphonates ; n.m.r. data ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation of Fluorophosphates, Difluorophosphates, Fluorophosphonates, and Fluorophosphites in Fluoride-containing Urea MeltsPhosphoric acid, phosphonic acid, and organylphosphonic acid react on heating in fluoride-containing urea melts in high yields to fluorophosphates, M12PHO2F, organylfluorophosphonates, M1RPO2F, organylpolyfluorophosphonates, M12R1CX(PO2F)2, M13N(CH2PO2F)3, and phosphonoorganylfluorophosphonates, M13R1CX(PO3)PO2F (M1 = K, NH4; R = organic substituent; R1 = H, organic substituent; X = OH, NH2, NR2). The reaction mechanism of the formation of fluorophosphate ions in fluoride containing urea melts is discussed.
    Notes: Phosphorsäure, Phosphonsäure und Organylphosphonsären reagieren beim Erhitzen in fluoridhaltigen Harnstoffschmelzen in hohen Ausbeuten zu Fluorophosphaten, M12PO3F, Difluorophosphaten, M1PO2F2, Fluorophosphiten, M1PHO2F, Organylfluorophosphonaten, M1RPO2F, Organylpolyfluorophosphonaten, M12R1CX(PO2F)2, M13N(CH2PO2F)3 und Phosphonoorganylfluorophosphonaten, M13R1CX(PO3)PO2F (M1 = K, NH4; R = organ. Rest; R1 = H, organ. Rest; X = OH, NH2, NR2). Der Mechanismus der Fluorophosphatbildung in fluoridhaltigen Harnstoffschmelzen werden diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19916000130
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Preparation and crystal structure of a new acentric caesium iron hydrogen phosphate, Cs3Fe3H15(PO4)9 (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1920-1926 
    Details
    ISSN: 0044-2313
    Keywords: Caesium iron hydrogen phosphate ; acentric crystal structure ; preparation ; CHARDI ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Herstellung und Kristallstruktur eines neuen azentrischen Caesiumeisenhydrogenphosphats, Cs3Fe3H15(PO4)9Einkristalle von Caesiumeisenhydrogenphosphat, Cs3Fe3H15(PO4)9, 2, wurden hydrothermal durch Erhitzen von Caesiumeisendihydrogenphosphat, CsFe(H2PO4)4, 1, mit einer geringen Menge Wasser hergestellt. 2 kristallisiert orthorhombisch, Raumgrupe Pna21 (Nr. 33 Int. Tab.) mit Z = 4 und a = 2718(1), b = 908,1(3), c = 1280,8(4) pm.Die Kristallstruktur wurde unter Verwendung von 4734 unabhängigen Reflexen I 7gt; 2σ(I) mit einem wR2 Wert von 0,0801 (SHELXL-93) gelöst. Das charakteristische Strukturelement der Kristallstruktur sind Kanäle in Richtung [001], die aus einem Gerüst von O verbrückten PO4-Tetraedern und FeO6-Oktaedern gebildet werden. Cs+ besetzt Positionen innerhalb der Kanäle.Die Mittleren Fiktiven Ionenradien (MEFIR), die Effektiven Koordinationszahlen (ECoN), die Ladungsverteilung nach dem CHARDI-Konzept sowie der Madelunganteil der Gitterenergie (MAPLE) werden berechnet und diskutiert.
    Notes: Single crystals of caesium iron hydrogen phosphate, Cs3Fe3H15(PO4)9, 2, were prepared hydrothermally by heating caesium iron dihydrogenphosphate, CsFe(H2PO4)4, 1, with a small amount of water. 2 crystallizes orthorhombic, space group Pna21 (No. 33 Int. Tab.) with Z = 4 and a = 2718(1), b = 908.1(3), c = 1280.8(4) pm.The crystal structure was solved by using 4734 unique reflections I 〉 2σ(I) with a final wR2 value of 0.0801 (SHELXL-93).The main feature of the crystal structure are channels formed by combined PO4-tetrahedra and FeO6-octahedra along the [001] direction. Cs+ is placed inside of the channels. Effective Coordination Numbers (ECoN), Mean Fictive Ionic Radii (MEFIR), Charge Distribution (CHARDI) and the Madelung Part of Lattice Energy (MAPLE) are calculated for the title compound.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966221118
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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