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Abstract
A series of heteroleptic β-diketiminate-stabilised calcium amides of the form [{ArNC(Me)CHC(Me)NAr}Ca{NR1R2}(THF)] (Ar = 2,6-diisopropylphenyl; R1 = H, R2 = Ar; R1 = H, R2 = CH2CH2OMe; R1 = R2 = Ph) react with 1,3-dialkylcarbodiimides, R3N=C=NR3 (R3 = Cy, iPr), to yield the corresponding insertion products [{ArNC(Me)CHC(Me)NAr}Ca{(R3N)2CNR 1R2}(THF)] at room temperature in hydrocarbon solutions. These latter compounds contain both β-diketiminate and guanidinate ligands bound to calcium. Solid-state data are consistent with the guanidinate ligands adopting a number of binding modes including κ2 through κ3 coordination, with varying degrees of delocalisation of the non-bound guanidinate nitrogen lone-pair across the π-framework of the ligand. DFT computational studies have been conducted to address these variations in coordination behaviour.
Original language | English |
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Pages (from-to) | 4474-4481 |
Number of pages | 8 |
Journal | Dalton Transactions |
Issue number | 33 |
DOIs | |
Publication status | Published - 20 Aug 2008 |
ASJC Scopus subject areas
- Inorganic Chemistry
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Dive into the research topics of 'Insertion reactions of β-diketiminate-stabilised calcium amides with 1,3-dialkylcarbodiimides'. Together they form a unique fingerprint.Projects
- 1 Finished
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Hydroamination of Alkenes and Alkynes with Group 2 Centred Catalysts
Hill, M. (PI)
Engineering and Physical Sciences Research Council
29/10/07 → 28/10/10
Project: Research council