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Title: Iridium complexes for electrocatalysis

Abstract

Solution-phase (e.g., homogeneous) or surface-immobilized (e.g., heterogeneous) electrode-driven oxidation catalysts based on iridium coordination compounds which self-assemble upon chemical or electrochemical oxidation of suitable precursors and methods of making and using thereof are. Iridium species such as {[Ir(LX).sub.x(H.sub.2O).sub.y(.mu.-O)].sub.z.sup.m+}.sub.n wherein x, y, m are integers from 0-4, z and n from 1-4 and LX is an oxidation-resistant chelate ligand or ligands, such as such as 2(2-pyridyl)-2-propanolate, form upon oxidation of various molecular iridium complexes, for instance [Cp*Ir(LX)OH] or [(cod)Ir(LX)] (Cp*=pentamethylcyclopentadienyl, cod=cis-cis,1,5-cyclooctadiene) when exposed to oxidative conditions, such as sodium periodate (NaIO.sub.4) in aqueous solution at ambient conditions.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
Yale Univ., New Haven, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1400232
Patent Number(s):
9,790,605
Application Number:
14/317,906
Assignee:
Yale University CHO
DOE Contract Number:  
FG02-07ER15909
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jun 27
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Sheehan, Stafford Wheeler, Hintermair, Ulrich, Thomsen, Julianne M, Brudvig, Gary W, and Crabtree, Robert H. Iridium complexes for electrocatalysis. United States: N. p., 2017. Web.
Sheehan, Stafford Wheeler, Hintermair, Ulrich, Thomsen, Julianne M, Brudvig, Gary W, & Crabtree, Robert H. Iridium complexes for electrocatalysis. United States.
Sheehan, Stafford Wheeler, Hintermair, Ulrich, Thomsen, Julianne M, Brudvig, Gary W, and Crabtree, Robert H. Tue . "Iridium complexes for electrocatalysis". United States. https://www.osti.gov/servlets/purl/1400232.
@article{osti_1400232,
title = {Iridium complexes for electrocatalysis},
author = {Sheehan, Stafford Wheeler and Hintermair, Ulrich and Thomsen, Julianne M and Brudvig, Gary W and Crabtree, Robert H},
abstractNote = {Solution-phase (e.g., homogeneous) or surface-immobilized (e.g., heterogeneous) electrode-driven oxidation catalysts based on iridium coordination compounds which self-assemble upon chemical or electrochemical oxidation of suitable precursors and methods of making and using thereof are. Iridium species such as {[Ir(LX).sub.x(H.sub.2O).sub.y(.mu.-O)].sub.z.sup.m+}.sub.n wherein x, y, m are integers from 0-4, z and n from 1-4 and LX is an oxidation-resistant chelate ligand or ligands, such as such as 2(2-pyridyl)-2-propanolate, form upon oxidation of various molecular iridium complexes, for instance [Cp*Ir(LX)OH] or [(cod)Ir(LX)] (Cp*=pentamethylcyclopentadienyl, cod=cis-cis,1,5-cyclooctadiene) when exposed to oxidative conditions, such as sodium periodate (NaIO.sub.4) in aqueous solution at ambient conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {10}
}

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