A 1ST ROBUST COMPLEX OF TETRADENTATE TCNQ - EVIDENCE FOR 2 WEAKLY COUPLED DIRUTHENIUM(II,III) SUBSYSTEMS IN SYMMETRICAL TETRANUCLEAR COMPLEXES ((MU-4-TCNX)[RU(NH3)5]4)8+ (TCNX=TCNE, TCNQ)

Authors
MOSCHEROSCH M KAIM W
Citation
M. Moscherosch et W. Kaim, A 1ST ROBUST COMPLEX OF TETRADENTATE TCNQ - EVIDENCE FOR 2 WEAKLY COUPLED DIRUTHENIUM(II,III) SUBSYSTEMS IN SYMMETRICAL TETRANUCLEAR COMPLEXES ((MU-4-TCNX)[RU(NH3)5]4)8+ (TCNX=TCNE, TCNQ), Inorganica Chimica Acta, 206(2), 1993, pp. 229-230
Citations number
6
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Inorganica Chimica Acta → ACNP
ISSN journal
00201693
Volume
206
Issue
2
Year of publication
1993
Pages
229 - 230
Database
ISI
SICI code
0020-1693(1993)206:2<229:A1RCOT>2.0.ZU;2-R
Abstract
The air-stable complexes {(mu4-TCNX)[Ru(NH3)5]4}(PF6)8 which contain r educed TCNX ligands show spectroscopic equivalence of the four metal c oordination sites on the H-1 NMR and vibrational time scales and very close lying frontier orbitals (UV-Vis-NIR, electrochemistry). Both the two-electron oxidation behaviour and the magnetic moment of mu(eff) = 2.7 suggest a weak interaction between two mixed-valent malonodinitri lato/(Ru2.5)2 subsystems.