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Published February 28, 2011 | Version Supplemental Material + Published
Journal Article Open

Spectroscopic and redox properties of amine-unctionalized K_2[Os-^(II)(bpy)(CN)_4] complexes

Creators

  • 1. ROR icon Ohmx (United States)
  • 2. ROR icon California Institute of Technology
  • 3. ROR icon Northwestern University

Abstract

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.

Additional Information

© 2011 Royal Society of Chemistry. Received 26th October 2010, Accepted 13th December 2010. We acknowledge the Integrated Molecular Structure Education and Research Center (IMSERC) at Northwestern University for instrument use (NMR, HRMS). Work at California Institute of Technology is supported by NIH DK019038.

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Published - Ahrens2011p12835Dalton_Transactions.pdf

Supplemental Material - C0DT01478H.pdf

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Additional details

Identifiers

Eprint ID
22680
Resolver ID
CaltechAUTHORS:20110307-093950733

Funding

NIH
DK019038

Dates

Created
2011-03-08
Created from EPrint's datestamp field
Updated
2021-11-09
Created from EPrint's last_modified field