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Rationally Functionalized Deltahedral Zintl Ions: Synthesis and Characterization of [Ge 9 ER 3 ] 3− , [R 3 EGe 9 ER 3 ] 2− , and [R 3 EGe 9 Ge 9 ER 3 ] 4− (E=Ge, Sn; R=Me, Ph)
Author(s) -
Ugrinov Angel,
Sevov Slavi C.
Publication year - 2004
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200400130
Subject(s) - chemistry , tin , germanium , ion , derivatization , crystallography , crown ether , nucleophile , halide , nuclear magnetic resonance spectroscopy , characterization (materials science) , inorganic chemistry , mass spectrometry , stereochemistry , materials science , silicon , nanotechnology , organic chemistry , catalysis , chromatography
Six new derivatized deltahedral Zintl ions have been synthesized by reactions between the known Zintl ions Ge 9 n − with the halides R 3 EX and/or the corresponding anions R 3 E − for E=Ge or Sn. This rational approach is based on our previous discovery that these derivatization reactions are based on nucleophilic addition to the clusters. All species were structurally characterized as their salts with potassium countercations sequestered in 2,2,2‐crypt or [18]crown‐6 ether. The tin‐containing anions were characterized also in solutions by 119 Sn NMR spectroscopy. The reaction types for such substitutions and the structures of the new anions are discussed.