Organometallic polymorphism. Synthesis and structural characterization of two forms of (Ru(#eta#~6-C_6H_6)(#eta#~6-C_6H_4(CH_3)COOCH_3)) (BF_4)_2 and the phase transition in (Ru(#eta#~5-C_5H_5)(#eta#~6-C_6H_5OH))(PF_6)

摘要

The synthesis and structural characterization of the complex (Ru(#eta#~6-C_6H_6)(#eta#~6-C_6H_4(CH_3)COOCH_3)) (BF_4)_2 (2) and of its precursor (Ru(#eta#~6-C_6H_4(CH_3)COOCH_3)Cl_2)_2(1) are reported. Compound (2) has been characterized in two polymorphic modifications (2a and 2b) and the molecular organization in the solid state has been investigated. The complex (Ru(#eta#~5-C_5H_5)(#eta#~6-C_6H_5OH))(PF_6) (3) has also been investigated; it has been shown to possess a disorder similar to that observed in the high temperature phase of related systems such as(Ru(#eta#~5-C_5H_5)(#eta#~6-C_6H_6)(PF_6)