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Iodoplumbate mit vier- und fünffach koordinierten Pb2+-Ionen

✍ Scribed by Harald Krautscheid; Frieder Vielsack

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
114 KB
Volume
625
Category
Article
ISSN
0372-7874

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✦ Synopsis

Inhaltsu È bersicht. In den kettenfo È rmigen Iodoplumbaten (Pr 4 N)[PbI 3 ] (1) und [Mg(dmf) 6 ][PbI 3 ] 2 (2) sind die Pb-Atome quadratisch pyramidal koordiniert, wa È hrend in den diskreten Anionen von (Ph 4 P) 2 [Pb 2 I 6 ] (3) und [Bu 3 N±(CH 2 ) 3 ±NBu 3 ][PbI 4 ] (4) die Zentralatome nur an vier Iodoliganden gebunden sind. Damit unterscheiden sich 1±4 von den bisher bekannten Iodoplumbaten mit oktaedrisch koordinierten Pb 2+ -Ionen. (Pr 4 N)[PbI 3 ] (1): a = 910,86(6), b = 1221,46(7), c = 1907,7(1) pm, V = 2122,5(2) ´10 6 pm 3 , Raumgruppe P2 1 2 1 2 1 ; [Mg(dmf) 6 ][PbI 3 ] 2 (2): a = 891,24(9), b = 1025,34(7), c = 1234,82(9) pm, α = 92,938(8), b = 106,457(8), c = 98,100(7)°, V = 1066,4(2) ´10 6 pm 3 , Raumgruppe P 1; (Ph 4 P) 2 [Pb 2 I 6 ] (3): a = 1174,5(1), b = 722,29(7), c = 3104,8(4) pm, b = 100,50(1)°, V = 2589,8(5) ´10 6 pm 3 , Raumgruppe P2 1 /n; [Bu 3 N±(CH 2 ) 3 ±NBu 3 ][PbI 4 ] (4): a = 2178,3(1), b = 1008,63(5), c = 1888,3(1) pm, b = 110,003(5)°, V = 3898,6(4) ´10 6 pm 3 , Raumgruppe P2/c. Iodoplumbates with Tetra-and Penta-coordinated Pb 2+ Ions

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