Bibliographic Details
| Title: |
Dimerisation versus polymerisation: Affects of donor position in isomeric dilithium diamine-bis(phenolate) complexes |
| Authors: |
Kerton, Francesca M.1 fkerton@mun.ca, Kozak, Christopher M.2 ckozak@mun.ca, Lüttgen, Karsten1, Willans, Charlotte E.1, Webster, Robert J.1, Whitwood, Adrian C.1 |
| Source: |
Inorganica Chimica Acta. Jun2006, Vol. 359 Issue 9, p2819-2825. 7p. |
| Subjects: |
Lithium, Ethers, Organic compounds, Transition metals |
| Abstract: |
Abstract: The synthesis and structures of isomeric lithium diamine-bis(phenolate) complexes are reported. Deprotonation of the ligands, H2O2NN′ tBu [Me2NCH2CH2N(CH2ArOH)2, Ar=3,5-C6H2- t Bu2] and H2O2N2 tBu [HOArCH2NMeCH2CH2NMeCH2ArOH, Ar=3,5-C6H2- t Bu2], in diethyl ether affords base-free lithium complexes Li2O2NN′ tBu (1) and Li2O2N2 tBu (2) upon solvent removal. The dioxane adduct of (1) exhibits a polymeric structure in the solid-state, whereas the dioxane adduct of (2) possesses a dimeric structure. The syntheses of K2O2NN′ tBu (3), K2O2N2 tBu (4), Zr(O2NN′ tBu)Cl2 (5) and Y(O2NN′ tBu)Cl(THF), (6), are also reported. The transition metal complexes were isolated in good yields via salt metathesis reactions using 1 or 3. [Copyright &y& Elsevier] |
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| Database: |
Engineering Source |
