Germanium anionic cluster

Germanes hydride, 2 76 reactivity of, 2 87 Germanium anionic cluster, 24 227 azides, preparation, 9 138 properties, 9 135-136, 139, 141 binary carbide not reported, 11 211 carbides, preparation of, 11 163 chalcogenide halides, 23 390 chlorides, mass spectra of, 18 248, 249 complexes, xenon fluoride reactions, 46 85 compounds, see also Organogermanium compounds... 

The area of germanium sulfide cluster anions has been enriched by the publication of a number of new compounds. The structure of the quaternary germanium sulfide AgLasGeSg has been elucidated and shown to comprise La3GeS4 cubes linked through Ge—S bonds to form a three dimensional arrayIn contrast, the anion [CuGe2S5] comprises [Ge4Sio]" units. ... 

In the report that described the synthesis of 108 (777), Whitmire also observed that the reaction between NaBi03 and methanolic [Fe(CO)s] in the presence of hydroxide afforded the trianionic species [Bi Fe(CO)4 4]3, 110, which was subsequently characterized by X-ray crystallography (775). Cluster 110 contains a central bismuth atom tetrahedrally coordinated by four Fe(CO)4 fragments and is isoelectronic with the anionic tetracobalt-indium complex, 27, and the neutral tetracobalt-germanium, - tin, and -lead complexes, 68, 71, and 72. Oxidation of 110 affords 108 (777), while acidification (772) yields the hydride-containing cluster [BiFe3(CO)9(/i-H)3], 111, which also contains a tetrahedral BiFe3 core. Johnson and Lewis (114) have... 

There is a variety of compounds that have Si bound to transition metals in relatively simple molecules such as Si[Re(CO)5]4 or in clusters such as [Co9(/x8-Si)(CO)21]2 . Germanium, tin, and lead also form clusters such as [Co5Ge(CO)16], Co4Pb(CO)16(PR3)4, and [Fe4Pb(CO)16]2 metallated Zintl ions are found in anions such as [Sn4Cr(CO)5 6]2- and [Ge9(/a1o-Ge)Ni(PPh3)]2. 17 ... 

Anion photoelectron spectra of small germanium clusters (n = 2 -15) have been nsed to determine electronic properties and the most stable geometric configuration for Ge anions. ... 

In solvate crystals obtained from liquid ammonia and ethylenediamine germanium, nido- Ge9] clusters were found together with naked K or Rb and Rb or Cs cations, respectively [37, 38], in which all cations were coordinated to the cluster anions in numerous contacts, resulting in a three-dimensional (3-D) network very similar to that in the binary intermetaDic phases. The solvent molecules in the lattice are attached to the alkaU metal atoms, but the compounds A+Geg(en) (A = Rb, Cs) lose their ethylenediamine easily upon heating, thereby leaving A+Geg [38]. 

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