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Synthesis of a series of ruthenium and rhodium complexes with tridentate pyridine-based ligands containing hydrogen bonding groups |
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| Authors: | Hayley A. Burkill Andrew J.P. White |
| Affiliation: | a Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, United Kingdom b Institute of Chemical Research of Catalonia (ICIQ), Avgda. Països Catalanas 16, 43007 Tarragona, Spain c Institution of Research and Advanced Studies of Catalonia (ICREA), Barcelona, Spain |
| Abstract: | A series of ruthenium and rhodium complexes with a urea-disubstituted pyridine ligand are reported. The X-ray crystal structures of three of these species, RuCl2(L1)(PPh3) (1), [Ru(MeCN)2(L1)(PPh3)][BF4]2 (3) and Rh(CH2Cl)Cl2(L1) (9) (where L1 = N,N′-(2,2′-(1E,1′E)-(1,1′-(pyridine-2,6-diyl)bis(ethan-1-yl-1-ylidene))bis(azan-1-yl-1-ylidene)bis(ethane-2,1-diyl))diacetamide) have shown that the disubstituted pyridine acts as a tridentate ligand and its urea substituents engage in hydrogen bonding interactions with species coordinated to the metal centres. The reactivity of the ruthenium complexes towards coordination of other anions such as NCS− has been investigated, as well as the oxidative-addition of alkyl chlorides to rhodium(I) centres (to yield species such as 9). |
| Keywords: | Rhodium compounds Ruthenium compounds Hydrogen bonding X-ray crystal structures |
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