ChemInform Abstract: Preparation and Characterisation of 2,2′‐Bipyridine‐4,4′‐disulphonic and ‐5‐sulphonic Acids and Their Ruthenium(II) Complexes.

Anderson, Susan R.; Constable, E. C.; Seddon, Kenneth R.; Turp, Janet E.; Baggott, J. E.; Pilling, Michael J.

doi:10.1002/chin.198609290

Cited by 5 publications

(3 citation statements)

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“…The red fraction was evaporated to dryness to give a red solid. Characterization was consistent with the literature (18). It should be noted that this compound is a mixture of several isomers.…”

Section: Synthesis Of (Ru[dpp(so 3 Na) 2 ] 3 )Cl 2 •6h 2 Osupporting

confidence: 87%

“…This short component appears to be unaffected by O 2 in all measurements, which leads us to believe that it may be a result of using the FD method. In fact, previous time domain work shows homogeneous decays with related Ru(II) compounds (18).…”

Section: Resultsmentioning

confidence: 86%

“…This compound was synthesized as previously stated with slight modification (18). The RuCl 3 (57 mg, 0.0276 mmol) was reacted with 3.5 equivalents of 4,7-diphenyl-1,10phenanthrolinedisulfonic acid disodium salt (518 mg, 0.0965 mmol) in 20 mL deionized H 2 O and refluxed with stirring for 2 days.…”

Section: Synthesis Of (Ru[dpp(so 3 Na) 2 ] 3 )Cl 2 •6h 2 Omentioning

confidence: 99%

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A Water-Soluble Luminescence Oxygen Sensor

Castellano

Lakowicz

1998

Photchem. Photbio.

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We developed a water-soluble luminescent probe for dissolved oxygen. This probe is based on (Ru[dpp(SO3Na)2]3) cl2, which is a sulfonated analogue of the well-known oxygen probe (Ru[dpp]3)cl2. The compound dpp is 4,7-diphenyl-1,10-phenanthroline and dpp(SO3Na)2 is a disulfonated derivative of the same ligand. In aqueous solution in the absence of oxygen (Ru[dpp(SO3Na)2]3)cl2 displays a lifetime of 3.7 microseconds that decreases to 930 ns on equilibrium with air and 227 ns on equilibrium with 100% oxygen. The Stern-Volmer quenching constant is 11,330 M-1. This high oxygen-quenching constant means that the photoluminescence of Ru(dpp[SO3Na]2)3cl2 is 10% quenched at an oxygen concentration of 8.8 x 10(-6) M, or equilibration with 5.4 torr of oxygen. The oxygen probe dissolved in water displays minimal interactions with lipid vesicles composed of dipalmityl-L-alpha-phosphatidyl glycerol but does appear to interact with human serum albumin. The absorption maximum near 480 nm, long lifetime and large Stokes' shift allow this probe to be used with simple instrumentation based on a light-emitting diode light source, allowing low-cost oxygen sensing in aqueous solutions. To the best of our knowledge this is the first practical water-soluble oxygen sensor.

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Section: Synthesis Of (Ru[dpp(so 3 Na) 2 ] 3 )Cl 2 •6h 2 Osupporting

confidence: 87%

Section: Resultsmentioning

confidence: 86%