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Synthesis and Structure of a Phenylsodium Solvate, Bis[μ‐phenyl(pentamethyldiethylenetriamine)sodium]
Author(s) -
Schümann Uwe,
Behrens Ulrich,
Weiss Erwin
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198904761
Subject(s) - dimer , chemistry , ionic radius , crystallography , monomer , atom (system on chip) , lone pair , ligand (biochemistry) , sodium , ionic bonding , stereochemistry , coordination number , ion , molecule , organic chemistry , polymer , biochemistry , receptor , computer science , embedded system
A higher coordination number at Na ⊕ than at Li ⊕ —due to the larger ionic radius of Na–is the reason why NaPh crystallizes with pentamethyldiethylenetriamine as the dimer 1 instead of as the monomer. Compound 1 is the first phenylsodium compound whose structure could be elucidated. The middle N atom of the ligand is bound markedly more weakly than the terminal atom, since the lone pair cannot be optimally directed toward the Na ⊕ ion (○ = Na ⊕ , • = N).
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