Exploiting σ/π Coordination Isomerism to Prepare Homologous Organoalkali Metal (Li, Na, K) Monomers with Identical Ligand Sets | Zendy

Davidson Matthew G. | Zendy; GarciaVivo Daniel | Zendy; Kennedy Alan R. | Zendy; Mulvey Robert E. | Zendy; Robertson Stuart D. | Zendy

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Exploiting σ/π Coordination Isomerism to Prepare Homologous Organoalkali Metal (Li, Na, K) Monomers with Identical Ligand Sets

Author(s) -

Davidson Matthew G.,

GarciaVivo Daniel,

Kennedy Alan R.,

Mulvey Robert E.,

Robertson Stuart D.

Publication year - 2011

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.201003493

Subject(s) - delocalized electron , chemistry , monomer , metal , lithium (medication) , ligand (biochemistry) , crystallography , ion , derivative (finance) , coordination complex , potassium , stereochemistry , sodium , inorganic chemistry , organic chemistry , medicine , biochemistry , receptor , financial economics , economics , endocrinology , polymer

Tetraamine Me 6 TREN has been used as a scaffold support to provide coordinative saturation in the complexes PhCH 2 M⋅Me 6 TREN (M=Li, Na, K). The Li derivative displays a LiC σ interaction with a pyramidalized CH 2 both in the solid state and in solution, and represents the first example of η 4 coordination of Me 6 TREN to lithium. In the sodium derivative, the metal cation slips slightly towards the delocalized π electrons whilst maintaining a partial σ interaction with the CH 2 group. For the potassium case, coordinative saturation successfully yields the first monomeric benzylpotassium complex, in which the anion binds to the metal cation exclusively through its delocalized π system resulting in a planar CH 2 group.

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