Premium
The New λ 6 Si ‐Silicate Dianion [Si(NCO) 6 ] 2− : Synthesis and Structural Characterization of [K(18‐crown‐6)] 2 [Si(NCO) 6 ]
Author(s) -
Seiler Oliver,
Burschka Christian,
Götz Kathrin,
Kaupp Martin,
Metz Stefan,
Tacke Reinhold
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200700189
Subject(s) - silicate , acetonitrile , crystallography , chemistry , nuclear magnetic resonance spectroscopy , x ray crystallography , crystal structure , silicon , spectroscopy , characterization (materials science) , diffraction , stereochemistry , materials science , physics , organic chemistry , nanotechnology , quantum mechanics , optics
The λ 6 Si ‐silicate [K(18‐crown‐6)] 2 [Si(NCO) 6 ] ( 10 ) was synthesized by treatment of Si(NCO) 4 with KNCO in the presence of 18‐crown‐6. Compound 10 ( Si N 6 skeleton) is the first example of a hexa(cyanato‐ N )silicate. It was characterized by solid‐state and solution NMR spectroscopy, and the acetonitrile solvate 10· 2CH 3 CN was studied by single‐crystal X‐ray diffraction. To differentiate between the two isomeric [Si(NCO) 6 ] 2− and [Si(OCN) 6 ] 2− dianions, computational studies were performed.