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7739993 
Journal Article 
Synthesis and characterisation of [(eta(6)-cymene)Ru(L)X-2] compounds: single crystal X-ray structure of [(eta(6)-cymene)Ru(P{OPh}(3))Cl-2] at 203 K 
Hodson, E; Simpson, SJ 
2004 
1 
Polyhedron
ISSN: 02775387 
Elsevier Ltd 
23 
17 
2695-2707 
English 
WOS:000225603100014 
Treatment of the chloro bridged dimer {[(η6-cymene)RuCl] 2(μ-Cl)2} (1) with the donor molecules in hot hexane causes bridge splitting reactions that produce the monomeric compounds [(η6-cymene)Ru(L)Cl2]. Treatment of the chloro bridged dimer {[(η6-cymene)RuCl]2(μ-Cl)2} (1) with the donor molecules P(OPh)3, P(OMe)3, PPh 3, PMe3, CO, SMe2, CNtBu and CNTos in hot hexane causes bridge splitting reactions that produce the monomeric compounds [(η6-cymene)Ru(L)Cl2], (4)-(11), respectively. Use of the chiral isonitrile S(-)-α-methylbenzylisonitrile produced the corresponding complex 12. The diiodo analogues, 13-15, were prepared similarly from {[(η6-cymene)RuI]2(μ-I) 2} (3) for P(OPh)3, P(OMe)3 and PPh 3, respectively. Insertion of tin(II) chloride into both metal-chlorine bonds was observed for [(η6-cymene)Ru(P{OMe} 3)Cl2] (5), while only monosubstitution was observed for [(η6-cymene)Ru(PPh3)Cl2] (6). Halide abstraction in the presence of a substrate reaction has been used to prepare some selected cationic compounds which contain an asymmetric ligand environment. Reaction of {[(η6-cymene)RuCl]2(μ-Cl)2} with 1,2-bis(diphenylphosphino)-ethane under ionising conditions produced the cation [(η6-cymene)Ru(dppe)Cl]PF6 (20). Selected compounds have been examined by {13C-1H} heteronuclear correlation and {1H-1H} COSY and NOESY experiments. The structure of [(η6-cymene)Ru(P{OPh}3)Cl2] • CH2Cl2 (4) has been determined at -70°C. © 2004 Elsevier Ltd. All rights reserved. 
cymene; ruthenium; X-ray