Osmium 1995

Ward, Michael D.

doi:10.1016/s0010-8545(97)00036-2

Cited by 3 publications

(1 citation statement)

References 91 publications

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“…9 Since the pioneering work of Olabe and coworkers, 6 relatively little attention has been paid to the [Os II (bpy)(CN) 4 ] 2family of complexes. [10][11][12] These complexes absorb light throughout the visible region and are strong reductants in both ground and excited states. Additionally, since ligand photolabilization processes are disfavoured (Os II d-d transitions are not excited in the visible region) and redox potentials can be readily tuned (using ligand substitution and/or changing solvent medium), they are prime candidates for investigations of charge and energy transport.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic and redox properties of amine-functionalized K2[OsII(bpy)(CN)4] complexes

Ahrens¹,

Bertin²,

Gaustad³

et al. 2011

Dalton Trans.

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We report the first examples of amine-functionalized K(2)[Os(II)(bpy)(CN)(4)] (bpy = 2,2'-bipyridine) complexes. The tetracyanoosmate complexes were prepared by UV irradiation (λ = 254 nm) of K(4)[Os(II)(CN)(6)] and primary amine-functionalized bpy ligands in acidic aqueous media. The aqueous solution pH dependences of the spectroscopic and redox properties of 4,4'- and 5,5'-substituted complexes have been investigated. The pendant amine functional groups and coordinated cyanide ligands are basic sites that can be sequentially protonated, thereby allowing systematic tuning of electrochemical and optical spectroscopic properties.

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