Catalytic water oxidation by an in situ generated ruthenium nitrosyl complex bearing a bipyridine-bis(alkoxide) ligand

Yingying Liu; Siu-Mui Ng; Shek-Man Yiu; Tai-Chu Lau

doi:10.1039/d1dt01918j

Catalytic water oxidation by an in situ generated ruthenium nitrosyl complex bearing a bipyridine-bis(alkoxide) ligand

Yingying Liu^*
, Siu-Mui Ng
, Shek-Man Yiu
, Tai-Chu Lau^*

^*Corresponding author for this work

Department of Chemistry

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

10 Citations (Scopus)

Abstract

Oxidative degradation and transformation of catalysts are commonly observed in water oxidation by molecular catalysts, especially when a highly oxidizing reagent such as (NH₄)₂[Ce(NO₃)₆] [Ce(iv)] is used. We report herein the synthesis of a ruthenium(III) complex bearing an oxidative resistant bipyridine-bis(alkoxide) ligand, [Ru(bdalk)(pic)₂]⁺(1, H₂bdalk = 2,2′-([2,2′-bipyridine]-6,6′-diyl)bis(propan-2-ol), pic = 4-picoline) as a water oxidation catalyst (WOC). A ruthenium(II) nitrosyl complex [Ru(Hbdalk)(NO)(pic)₂]²⁺(3) was also formed during the water oxidation process by1/Ce(iv), and was isolated and structurally characterized. Complex 3 was found to be an active WOC, with the nitrosyl group remaining intact during water oxidation.

Original language	English
Pages (from-to)	12316-12323
Journal	Dalton Transactions
Volume	50
Issue number	35
Online published	31 Jul 2021
DOIs	https://doi.org/10.1039/d1dt01918j
Publication status	Published - 21 Sept 2021

RGC Funding Information

RGC-funded

Access Output

10.1039/d1dt01918j

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{bcf495869088487caec84450e620275e,

title = "Catalytic water oxidation by an in situ generated ruthenium nitrosyl complex bearing a bipyridine-bis(alkoxide) ligand",

abstract = "Oxidative degradation and transformation of catalysts are commonly observed in water oxidation by molecular catalysts, especially when a highly oxidizing reagent such as (NH4)2[Ce(NO3)6] [Ce(iv)] is used. We report herein the synthesis of a ruthenium(III) complex bearing an oxidative resistant bipyridine-bis(alkoxide) ligand, [Ru(bdalk)(pic)2]+ (1, H2bdalk = 2,2′-([2,2′-bipyridine]-6,6′-diyl)bis(propan-2-ol), pic = 4-picoline) as a water oxidation catalyst (WOC). A ruthenium(II) nitrosyl complex [Ru(Hbdalk)(NO)(pic)2]2+ (3) was also formed during the water oxidation process by1/Ce(iv), and was isolated and structurally characterized. Complex 3 was found to be an active WOC, with the nitrosyl group remaining intact during water oxidation.",

author = "Yingying Liu and Siu-Mui Ng and Shek-Man Yiu and Tai-Chu Lau",

year = "2021",

month = sep,

day = "21",

doi = "10.1039/d1dt01918j",

language = "English",

volume = "50",

pages = "12316--12323",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "Royal Society of Chemistry",

number = "35",

}

TY - JOUR

T1 - Catalytic water oxidation by an in situ generated ruthenium nitrosyl complex bearing a bipyridine-bis(alkoxide) ligand

AU - Liu, Yingying

AU - Ng, Siu-Mui

AU - Yiu, Shek-Man

AU - Lau, Tai-Chu

PY - 2021/9/21

Y1 - 2021/9/21

N2 - Oxidative degradation and transformation of catalysts are commonly observed in water oxidation by molecular catalysts, especially when a highly oxidizing reagent such as (NH4)2[Ce(NO3)6] [Ce(iv)] is used. We report herein the synthesis of a ruthenium(III) complex bearing an oxidative resistant bipyridine-bis(alkoxide) ligand, [Ru(bdalk)(pic)2]+ (1, H2bdalk = 2,2′-([2,2′-bipyridine]-6,6′-diyl)bis(propan-2-ol), pic = 4-picoline) as a water oxidation catalyst (WOC). A ruthenium(II) nitrosyl complex [Ru(Hbdalk)(NO)(pic)2]2+ (3) was also formed during the water oxidation process by1/Ce(iv), and was isolated and structurally characterized. Complex 3 was found to be an active WOC, with the nitrosyl group remaining intact during water oxidation.

AB - Oxidative degradation and transformation of catalysts are commonly observed in water oxidation by molecular catalysts, especially when a highly oxidizing reagent such as (NH4)2[Ce(NO3)6] [Ce(iv)] is used. We report herein the synthesis of a ruthenium(III) complex bearing an oxidative resistant bipyridine-bis(alkoxide) ligand, [Ru(bdalk)(pic)2]+ (1, H2bdalk = 2,2′-([2,2′-bipyridine]-6,6′-diyl)bis(propan-2-ol), pic = 4-picoline) as a water oxidation catalyst (WOC). A ruthenium(II) nitrosyl complex [Ru(Hbdalk)(NO)(pic)2]2+ (3) was also formed during the water oxidation process by1/Ce(iv), and was isolated and structurally characterized. Complex 3 was found to be an active WOC, with the nitrosyl group remaining intact during water oxidation.

UR - https://www.scopus.com/pages/publications/85114906561

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85114906561&origin=recordpage

U2 - 10.1039/d1dt01918j

DO - 10.1039/d1dt01918j

M3 - RGC 21 - Publication in refereed journal

SN - 1477-9226

VL - 50

SP - 12316

EP - 12323

JO - Dalton Transactions

JF - Dalton Transactions

IS - 35

ER -

Catalytic water oxidation by an in situ generated ruthenium nitrosyl complex bearing a bipyridine-bis(alkoxide) ligand

Abstract

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

GRF: Synthesis and Reactivity of Iron(VI) Nitrido Complexes

Cite this

Catalytic water oxidation by an in situ generated ruthenium nitrosyl complex bearing a bipyridine-bis(alkoxide) ligand

Abstract

RGC Funding Information

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Projects

GRF: Synthesis and Reactivity of Iron(VI) Nitrido Complexes

Cite this