caa a22 4500 477085598 CHVBK 20180405111503.0 cr unu---uuuuu 170330e19961201xx s 000 0 eng 10.1007/BF01165802 doi (NATIONALLICENCE)springer-10.1007/BF01165802 The structures of europium(III)- and uranium(IV) derivatives of [P5w3oo110]15-: Evidence for "cryptohydration” [Elektronische Daten] [Michael Dickman, Gennaro Gama, Kee-Chan Kim, Michael Pope] The crystal structures of (Nh4)11.5K0.5[ Eu(OH2)P5W30O110] ·24 H2O, K5H5 [Eu(OH2)P5W30O110] ·31 H2O, and (NH4)11[U(OH2)P5Wn30O110 ·12 H2O have been determined. In each case, the anion has the overall virtual C5v symmetry previously observed for the sodium derivative, [NaP5W30 110]14- The encrypted Eu3+ and U4+cations lie on the C5 axis, but are displaced further than the Na+ from the equatorial plane defined by the five phosphorus atoms. Only minor differences are observed between the structures of the two salts of the europium derivative, although solutions of these display31P NMR spectra with chemical shifts differing by 10 ppm, provisionally attributed to the effects of protonation of the anion, The most significant feature of the three new structures is the presence of a water molecule within the central cavity and coor-dinated to the Eu3+ or U4+ cation.The coordination spheres of the central cations can therefore be described as monocapped pentagonal antiprisms. Plenum Publishing Corporation, 1996 Polyoxometalate nationallicence preyssler nationallicence europium nationallicence uranium nationallicence phosphotungstates nationallicence tungstophosphates nationallicence Dickman Michael Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C. aut Gama Gennaro Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C. aut Kim Kee-Chan Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C. aut Pope Michael Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C. aut Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 7/4(1996-12-01), 567-583 1040-7278 7:4<567 1996 7 10876 https://doi.org/10.1007/BF01165802 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01165802 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dickman Michael Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C aut NATIONALLICENCE 700 1- Gama Gennaro Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C aut NATIONALLICENCE 700 1- Kim Kee-Chan Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C aut NATIONALLICENCE 700 1- Pope Michael Department of Chemistry, Georgetown University, Box 1227, 20057-1227, Washington,D.C aut NATIONALLICENCE 773 0- Journal of Cluster Science Kluwer Academic Publishers-Plenum Publishers 7/4(1996-12-01), 567-583 1040-7278 7:4<567 1996 7 10876 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer