Cover Feature: The First Organosilver(III) Fluoride, [PPh 4 ][(CF 3 ) 3 AgF] (Chem. Eur. J. 20/2020)

New class of ruthenium sulfide clusters: Ru(4)S(6)(PPh(3))(4), Ru(5)S(6)(PPh(3))(5), and Ru(6)S(8)(PPh(3))(6).

Reaction of RuCl(2)(PPh(3))(3) with S(2)(-) sources yields a family of phosphine-containing Ru-S clusters which have been characterized crystallographically and by MALDI-MS. Ru(4)S(6)(PPh(3))(4) (Ru-Ru(av) = 2.94 A) has idealized T(d)() symmetry whereas Ru(6)S(8)(PPh(3))(6) (Ru-Ru(av) = 2.82 A) adopts the idealized O(h)() symmetry characteristic of Chevrel clusters. Ru(5)S(6)(PPh(3))(5) is form...

- 4 ’ ” EFFECT OF CF 3 H AND CF 3 Br ON LAMINAR DIFFUSION FLAMES IN NORMAL

Chemical inhibdion of dtiusion flames through addition of halogenatkd “inhibitors is a problem of significant practical and scientific interest. Extensive studies on diffusion flames in microgravity have shown that these flames have significantly different characteristics than those under normal gravity [1,2]. However, the mechanisms through which inhibitors reach the reaction zone to suppress ...

Cover vol.7, no.3

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The First Ammoniates of Alkali Metal Fluorides: Cesium Fluoride Ammonia (3/4) [Cs3F3(NH3)4] and Ammonium Cesium Difluoride [NH4CsF2]

Two new compounds containing cesium fluoride have been obtained as side-products from the reactions of Cs2CuF6 and Cs2KDyF6 with liquid ammonia. Cs2CuF6 reacts with the solvent forming a still unknown blue substance and the colorless ammoniate Cs3F3(NH3)4 which crystallizes in the cubic space group I4̄3d (no. 220) with a = 10.273(1) Å and V = 1084.3(2) Å3 at 123 K with Z = 4. Its crystal structu...