(Acetonitrile-N)(o-benzoquinone diimine-N,N′)chloro-trans-bis(tri-phenylphosphine-P)ruthenium(II) hexafluorophosphate 0.25-hydrate

© 2000 International Union of Crystallography.The Ru atom in the title compound, [RuCl(CH3CN)-{P(C6H5)3}2{C6H4(NH)2}]PF6·0.25H2O, has a six-coordinate octahedral geometry, with a trans arrangement of the triphenylphosphine groups. The asymmetric unit contains two complex molecules and a partially occupied water site. Principal dimensions include Ru-N 1.958 (4)-2.044 (5), Ru-P 2.3897 (16)-2.4092 (15), and Ru-Cl 2.4280 (15) and 2.4295 (16) Å

Bis(acetonitrile-N)(o-benzoquinone diimine-N,N′)-trans-bis(triphenyl-phosphine-P)ruthenium(II) bis(hexa-fluorophosphate) methanol solvate

© 2000 International Union of Crystallography.The title complex, [Ru(C2H3N)2(C6H6N2)(C18H15P)2](PF6)2.-CH4O, is the third of a series of ruthenium complexes containing two triphenylphosphine groups in a trans arrangement, o-benzoquinone diimine and two other non-redox active ligands to been characterized. The effect of electron donor-acceptor properties of the two non-redox active ligands does not change the quinone arrangement for the o-benzoquinone diimine ligand, as can be seen from the bond distances of the quinone ring. The asymmetric unit contains half a molecule of complex cation (on a twofold rotation axis), one hexafluorophosphate anion and half a molecule of methanol in a general position close to a twofold rotation axis

A family of ruthenium complexes containing the non-innocent ligand o-benzoquinonediimine. An infrared structural interpretation

It has been shown that innocent ligands always contribute with a similar electron density to a metal centre in a complex regardless of which other innocent ligands are bonded to the same centre, while non-innocent ligands are capable of tuning electron density on the metal centre depending on the nature of the other ligands. The present work reports the IR spectral characterisation of four ruthenium complexes containing the non-innocent ligand o-benzoquinonediimine and different innocent ligands (Ru(C6H 4{NH}2)(Cl)2(PPh3)2; [Ru(CH3CN)(C6H4{NH}2)(Cl)(PPh 3)2][BF4]; [Ru(CH3CN) 2(C6H4{NH}2)(PPh3) 2[BF4]2, and [Ru(C6H 4{NH}2)({C2H5}2NCS 2) (PPh3)2][Cl]. The C=N vibration correlates with the EL values of the ligands. We found that the o-benzoquinonediimine ligand modulates the vibrational energies depending on the nature of the innocent ligands bonded to the ruthenium atom