• Keine Ergebnisse gefunden

Synthesis and Crystal Structures of the Polygermanide Ammoniates K4

N/A
N/A
Info
Herunterladen
Protected

Academic year: 2022

Aktie "Synthesis and Crystal Structures of the Polygermanide Ammoniates K4"

Copied!
1
0
0

Wird geladen.... (Jetzt Volltext ansehen)

Jetzt herunterladen ( 1 Seite )

Volltext

(1)

Synthesis and Crystal Structures of the Polygermanide Ammoniates K

4

Ge

9

· 9 NH

3

, Rb

4

Ge

9

· 5 NH

3

and Cs

6

Ge

18

· 4 NH

3

Christof Suchentrunkd, J¨org Danielsa, Mehmet Somerb, Wilder Carrillo-Cabrerac, and Nikolaus Korberd

aInstitut f¨ur Anorganische Chemie der Universit¨at Bonn, Gerhard-Domagk-Straße 1, D-53121 Bonn, Germany

bCollege of Arts and Sciences, Koc University, Rumelifeneri Yolu, 34450 Sariyer, Istanbul, Turkey

cMax-Planck-Institut f¨ur Chemische Physik fester Stoffe, N¨othnitzer Straße 40, D-01187 Dresden, Germany

dInstitut f¨ur Anorganische Chemie der Universit¨at Regensburg, D-93040 Regensburg, Germany Reprint requests to Prof. Dr. N. Korber. Fax: 0941/9431812.

E-mail: nikolaus.korber@chemie.uni-regensburg.de

Z. Naturforsch. 60b, 277 – 283 (2005); received October 26, 2004

The new compounds K4Ge9·9 NH3and Rb4Ge9·5 NH3were prepared by the extraction of K4Ge9

and Rb4Ge9 with liquid ammonia and characterized by low temperature X-ray structure analysis.

They both contain monocapped square antiprismatic Ge94−anions. Cs6Ge18·4 NH3was prepared by the extraction of K2Cs2Ge9with liquid ammonia in the presence of [(Bu)3MeN](Br2I) as an ox- idizing agent, and contains a [Ge9-Ge9]6−dimer in which two Ge94−anions are linked by a single Ge-Ge bond.

Key words: Zintl Anion, Germanide, Low-Temperature Crystal Structure Analysis, Liquid Ammonia, Solvate Crystal

Referenzen

Jetzt herunterladen ( PDF - 1 Seite - 5.59 KB )

ÄHNLICHE DOKUMENTE

Synthesis and Crystal Structure of K

Recently, we extended our investigations of Zintl ions of group 14 and 15 elements and related in- termetalloid clusters [27 – 30] to their reactions un- der solvothermal conditions

Synthesis and Crystal Structure of Nb0.84

The crystal structure refinement was performed by the Rietveld method using X-ray and neutron powder diffraction data.. The niobium atoms form a close packing with a layer sequence

Syntheses and Crystal Structures of Ca

We used E UTAX calculations (Madelung poten- tials and bond valence sums, Table 3) to verify the valid- ity of our structural results by comparing them to calcu- lated results of CaH

Crystal Structures and Properties of Eu

Europium selenogermanate(IV) and Europium selenogermanate(III) were synthesized by direct reactions of the elements at 1023 K and their crystal structures determined by single

Crystal Structures and Properties of Eu2

From the viewpoint of X-ray diffraction data, the coordination number of europium changes from 7 to 6(+2) during the transition (see Table 3), but this is a matter of a dynamic

Preparation and Crystal Structures of (Hg

The structures comprise of equilateral mercury triangles with mean distances d (Hg-Hg) = 2.659 ˚ A, which are bonded to halogen and oxygen atoms of nearly perfect PO 4 or AsO

Synthesis and Crystal Structures of ATi[Nb

The structures of the compounds ATi[Nb 6 Cl 18 ] (A = K, In, Tl) were found to be isotypic with RbTi[Nb 6 Cl 18 ], and their unit cell parameters were refined using X-ray

Crystal Structures of [Ph

Klap¨otke, Burkhard Krumm, Kurt Polborn, and Claudia M.. Rien¨acker Department Chemie,