Ûber (n-Bu 4 N) 2 [(W 6 Cl i 8 )F a 6 ] ´2 CH 2 Cl 2 und 19 F-NMR-Nachweis gemischter Clusteranionen [(W 6 Cl i 8 )F a n Cl a 6Àn ], n = 1±6
The DMSO Solvated octahedro-[W6Cl3.0.CO;2-0/asset/equation/tex2gif-stack-1.gif?v=1&t=h5l3l1fz&s=0a8b8c96fa1c30a6a724917a462f51567c2644ad" class="inlineGraphic">]Cl3.0.CO;2-0/asset/equation/tex2gif-stack-2.gif?v=1&t=h5l3l1g0&s=e056d52eeac3aa2158cbb71b75b76e458a149df2" class="inlineGraphic"> Cluster Molecule
✍ Scribed by Yue-Qing Zheng; Ekaterina Jonas; Jürgen Nuss; Hans Georg von Schnering
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- German
- Weight
- 147 KB
- Volume
- 624
- Category
- Article
- ISSN
- 0372-7874
No coin nor oath required. For personal study only.
✦ Synopsis
Octahedro-hexatungsten octadecachloride, W 6 Cl 18 , is soluble in dimethyl sulfoxide (DMSO). Brownish black crystals of W 6 Cl 18 (DMSO) 4 are formed from the brown solution by evaporation of DMSO under dynamic vacuum. The compound crystallizes monoclinically in the space group P2 1 /n (no. 14) with a = 10.420 A Ê , b = 9.271 A Ê , c = 20.828 A Ê , b = 91.10°and Z = 2. The crystal structure is formed by isolated cluster molecules [W 6 Cl i 12 ]Cl a 6 of the hexameric tungsten trichloride and DMSO molecules. It is the first hierarchical variant of the tetragonal BaAl 4 type of structure where all atoms of the intermetallic phase are sub-stituted by neutral molecules. The mean bond lengths are d(W±W) = 2.878 A Ê , d(W±Cl i ) = 2.391 A Ê and d(W±Cl a ) = 2.447 A Ê . They will be discussed in relation to analogous clusters. The two crystallographically independent DMSO molecules (d(S±O) = 1.53±1.55 A Ê , d(S±C) = 1.65±1.78 A Ê ) form a 3 D net of condensed < 4 8 6 4 > dodecahedra which envelopes the clusters.
📜 SIMILAR VOLUMES
Professor Hartmut Ba Èrnighausen zum 65. Geburtstag gewidmet Inhaltsu È bersicht. Bei der Umsetzung von [(Mo 6 X i 8 )Y a 6 ] 2± , X i = Y a = Cl, Br mit AgNO 3 und mit AgNO 2 unter striktem Sauerstoffausschluû in Aceton entstehen die Hexanitratobzw. Hexanitrito-Clusteranionen [(Mo 6 X i 8 )Y a 6 ]
Inhaltsu È bersicht. Silberfarbene, spro È de Einkristalle von K 3 Au 5 Pb wurden durch Umsetzung von Kaliumazid mit Goldschwamm und Bleipulver bei T = 920 K synthetisiert. Die Struktur der Verbindung (Raumgruppe Imma, Z = 4, a = 5,646(1) A Ê , b = 19,500(4) A Ê , c = 8,412(1) A Ê ) wurde aus Ro È n
Inhaltsu È bersicht. Bei der Umsetzung von [(Mo 6 I i 8 )I a 6 ] 2± mit (SCN) 2 in Dichlormethan bei ±20 °C entsteht das Hexaisothiocyanato-Clusteranion [(Mo 6 I i 8 )(NCS) a 6 ] 2± . Die Ro È ntgenstrukturanalyse an einem Einkristall von (n-Bu 4 N) 2 [(Mo 6 I i 8 )(NCS) a 6 ] ´2 Me 2 CO (monoklin,