| Autor: |
Searls CE; Department of Chemistry, Haverford College, 370 Lancaster Avenue, Haverford, Pennsylvania 19041, United States., Kleespies ST, Eppright ML, Schwartz SC, Yap GP, Scarrow RC |
| Jazyk: |
angličtina |
| Zdroj: |
Inorganic chemistry [Inorg Chem] 2010 Dec 20; Vol. 49 (24), pp. 11261-3. Date of Electronic Publication: 2010 Nov 23. |
| DOI: |
10.1021/ic101612f |
| Abstrakt: |
The novel ligand DIG(3)tren has three N',N''-diisopropylguanidinyl (DIG) moieties. We report on the structures of two cobalt complexes that show how an isopropylamino group from each DIG acts as a flap that can either close over the metal or rotate away from the metal to open up a site for auxiliary ligand binding. Two of the -NH(iPr) flaps are open in pink [Co(DIG(3)tren)(OAc)]OAc (1), and each of these flaps provides a hydrogen bond to stabilize acetate binding to trigonal bipyrimidal cobalt. The flaps are closed in blue [Co(DIG(3)tren)][BPh(4)](2) (2), yielding a rare example of a trigonal (mono)pyramidal [ML](2+) ion. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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