Preparation of novel alkylated ruthenium {alpha}-diimine complexes: Reactivity toward carbon monoxide and phosphines
- Universitelt van Amsterdam (Netherlands)
- Rijks Universltelt Utrecht, (Netherlands)
Ru{sub 2}(CO){sub 5}({sup i}Pr-DAB) (1) reacts with MeI at room temperature to give Ru{sub 2}(Me)(I)(CO){sub 4}({sup i}Pr-DAB) (2a), and a single-crystal X-ray structure determination of 2a has been obtained. Treatment of 2a with CO leads to substitution of the iodide bridge and the two coordinated imine bonds with the formation of Ru(Me)(I)(CO{sub 2})({sup i}Pr-DAB) (3a) and Ru(CO){sub 5}. This reaction, which is reversible, provides a new synthetic route for the preparation of monomeric methylated {alpha}-diimine complexes. Several other reaction routes for the formation of the complexes Ru(X)(Y)(CO){sub 2}({alpha}-diimine) (X = Me, Y = I, {alpha}-diimine Y = I, {alpha}-diimine = {sup i}Pr-Pyca (3b); X = Y = I, {alpha}-diimine = {sup i}Pr-DAB (3c); X = Y = I, {alpha}-diimine = {sup i}Pr-pyca (3d); X = Cl, Y = benzyl, {alpha}-diimine = {sup i}Pr-DAB (3e)) are presented. Treatment of 2a with phosphines leads to substitution of only one coordinated imine bond, with the formation of Ru{sub 2}(Me)(I)(CO){sub 4}(PR{sub 3})({sup i}Pr-DAB) (PR{sub 3} = PPh{sub 3} (4a), PMe{sub 2}Ph (4b), P(OMe){sub 3} (4c)). 62 refs., 4 figs., 13 tabs.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 412005
- Journal Information:
- Organometallics, Journal Name: Organometallics Journal Issue: 11 Vol. 11; ISSN 0276-7333; ISSN ORGND7
- Country of Publication:
- United States
- Language:
- English
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