English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Oligomere Tetraeder-Anionen in Borophosphaten: Darstellung und Kristallstrukturen von NaFe[BP2O7(OH)3] und K2Fe2[B2P4O16(OH)2]

MPS-Authors
There are no MPG-Authors available
Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Boy, I., Cordier, G., Eisenmann, B., & Kniep, R. (1998). Oligomere Tetraeder-Anionen in Borophosphaten: Darstellung und Kristallstrukturen von NaFe[BP2O7(OH)3] und K2Fe2[B2P4O16(OH)2]. Zeitschrift für Naturforschung Section B-A Journal of Chemical Sciences, 53(2), 165-170.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-BE38-A
Abstract
Crystals of the title compounds were grown under hydrothermal conditions. The crystal structures were determined by single crystal data. NaFe[BP2O7(OH)(3)] (monoclinic, C 2/c, a = 1042.0(2), b = 821.5(1), c = 9217(1) pm, beta = 116.60(1)degrees, Z=4): The crystal structure contains isolated anions [BP2O7(OH)(3)](4-), which correspond to trinuclear units PO1/2O3-BO2/2(OH)(2)-PO1/2O2(OH) of corner sharing tetrahedra. Fe3+ is coordinated octahedrally by oxygen, Na+ is 8-fold coordinated by oxygen forming cubes. K2Fe2[B2P4O16(OH)(2)] (triclinic, P (1) over bar, a = 516.7(1), b = 808.9(1), c = 834.0(1) pm, alpha = 87.06(1), beta = 80.21(1), gamma = 86.59(1)degrees, Z = 1): The crystal structure contains isolated anions [B2P4O16(OH)(2)](8-). Four-membered rings of tetrahedra with two additional terminal phosphate groups are formed by condensation of two trinuclear units PO1/2O3-BO3/2(OH)-PO2/2O2. Fe3+ is in an octahedral and K+ in an irregularly 10-fold coordination by oxygen.