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Abstract:
Single crystals of Fe[B2P2O7(OH)(5)] were grown under hydrothermal
conditions at 170 degrees C. The crystal structure (monoclinic, C 2/c
(Nr. 15), a = 1774.7(5), b = 672.0(2), c = 705.9(2) pm, beta =
109.01(2)degrees, Z = 4, D-x = 2.808 g/cm(3)) contains vierereinfach
tetrahedral chains (1)(infinity)[B2P2O7(OH)(5)](3-), which are formed by
alternating berate and phosphate groups connected via common corners:
(1)(infinity)[BO2/2(OH)(OH0.5)-PO2/2O(OH)-BO2/2(OH)-(OH0.5)-PO2/2O(OH)].
Fe3+ is in an octahedral coordination (Fe(O)(2)(OH)(4)).
