Synthesis and Structure of Ruthenium Complexes $$\rm[{Ph_{3}PR]_2^+[RuCl_6]^{2-}}$$ [ P h 3 P R ] 2 + [ R u C l 6 ] 2 − (R = C2H5, CH=CHCH3, CH2CH=CHCH3, CH2OCH3), and $$\rm[{Ph_{3}PCH_2CH=CHCH_2{PPh_3}]_2^{2+}[Ru_2Cl_{10}O]^{4-}}$$ [ P h 3 P C H 2 C H = C H C H 2 P P h 3 ] 2 2 + [ R u 2 C l 10 O ] 4 − · 4H2O