New dinuclear arene ruthenium complexes with P,S- or P,O-chelating ligands
Author(s)
Date issued
2004
In
Inorg. Chim. Acta
Vol
4
No
357
From page
1213
To page
1218
Subjects
phosphorus sulfur mixed donor ligand prepn structure coordination oxygen phosphorus mixed donor ligand prepn structure reactivity diphosphino benzoyl diaminonaphthalene mono phosphine oxide deriv prepn structure ruthenium cymene thiophosphine cationic dinuclear complex prepn structure diruthenium arene amidophosphine cationic complex prepn structure crystal structure bisphosphinobenzoyl dithioethane diaminonaphthalene ligand ruthenium complex mol structure bisphosphinobenzoyl dithioethane diaminonaphthalene ligand ruthenium complex
Abstract
Two equivalents of 2-diphenylphosphinobenzoic acid react with 1,2-ethanedithiol and 1,8-diaminonaphthalene under peptidic coupling conditions to give the new ligands 1,2-bis-S-[2'-(diphenylphosphino)benzoyl]dithioethane (dppte) (1) and 1,2-bis-N-[2'-(diphenylphosphino)benzoyl]diaminonaphthalene (dppan) (2), resp. Compds. 1 and 2 have been characterized by mass spectrometry, elemental anal., NMR, IR spectroscopy, and by single-crystal X-ray structure anal. Ligand 2 is easily oxidized by air to give the monophosphine oxide derivs. (3). Single-crystal X-ray structure anal. of 3 shows an intramol. hydrogen bond between an amido and the phosphoryl oxygen atom. Compds. 1 and 2 react with [RuCl2(?6-p-cymene)]2 to give the dinuclear complexes [RuCl(?6-p-cymene)(dppte)RuCl(?6-p-cymene)]2+ (4) and [RuCl(?6-p-cymene)(dppan)RuCl(?6-p-cymene)]2+ (5). As detd. by single-crystal X-ray structure anal., 4 and 5 adopt different coordination modes to the ruthenium atoms. In 4 the sym. dppte ligand is P,S coordinated to the ruthenium atom, whereas in 5 the dppan ligand prefers a P,O coordination mode. [on SciFinder(R)]
Publication type
journal article