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Cooperative Noncovalent Interactions Induce Ion Pair Separation in Diphenylsilanides
Author(s) -
Marro Eric A.,
Press Eric M.,
Purkait Tapas K.,
Jimenez Daniel,
Siegler Maxime A.,
Klausen Rebekka S.
Publication year - 2017
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.201704217
Subject(s) - potassium , crown ether , non covalent interactions , molecule , chemistry , ion , ring (chemistry) , crystallography , silicon , chemical physics , computational chemistry , hydrogen bond , organic chemistry
This crystallographic and computational study describes an unusual potassium silanide structure. A contact ion pair is expected in the solid state between potassium and silicon, yet the potassium cation binds an aromatic ring and the anionic silanide interacts with CH bonds on neighboring crown ether molecules. These structure‐bonding phenomena are attributed to strong soft–soft interactions.