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  • Daniel, QuentinKTH,Skolan för kemi, bioteknologi och hälsa (CBH) (author)

Water Oxidation Initiated by In Situ Dimerization of the Molecular Ru(pdc) Catalyst

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018-03-28
  • AMER CHEMICAL SOC,2018
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-231630
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-231630URI
  • https://doi.org/10.1021/acscatal.7b03768DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • QC 20211129
  • The mononuclear ruthenium complex [Ru(pdc)L-3] (H(2)pdc = 2,6-pyridinedicarboxylic acid, L = N-heterocycles such as 4-picoline) has previously shown promising catalytic efficiency toward water oxidation, both in homogeneous solutions and anchored on electrode surfaces. However, the detailed water oxidation mechanism catalyzed by this type of complex has remained unclear. In order to deepen understanding of this type of catalyst, in the present study, [Ru(pdc)(py)(3)] (py = pyridine) has been synthesized, and the detailed catalytic mechanism has been studied by electrochemistry, UV-vis, NMR, MS, and X-ray crystallography. Interestingly, it was found that once having reached the Ru-IV state, this complex promptly formed a stable ruthenium dimer [Ru-III(pdc)(py)(2)-O-Ru-IV(pdc)(py)(2)](+). Further investigations suggested that the present dimer, after one pyridine ligand exchange with water to form [Ru-III(pdc)(py)(2)-O-Ru-IV(pdc)(py)(H2O)](+), was the true active species to catalyze water oxidation in homogeneous solutions.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Duan, LeleKTH,Molekylär elektronik, CMD(Swepub:kth)u1hcqy43 (author)
  • Timmer, Brian J. J.KTH,Skolan för kemi, bioteknologi och hälsa (CBH)(Swepub:kth)u17oyi4g (author)
  • Chen, HongKTH,Skolan för kemi, bioteknologi och hälsa (CBH)(Swepub:kth)u1e510e0 (author)
  • Luo, XiaodanPeking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. (author)
  • Ambre, RamKTH,Skolan för kemi, bioteknologi och hälsa (CBH)(Swepub:kth)u18cbd7b (author)
  • Wang, YingKTH,Skolan för kemi, bioteknologi och hälsa (CBH)(Swepub:kth)u1baz51s (author)
  • Zhang, BiaobiaoKTH,Skolan för kemi, bioteknologi och hälsa (CBH)(Swepub:kth)u1lxnvcf (author)
  • Zhang, PeiliKTH,Kemi(Swepub:kth)u1jnq2ns (author)
  • Wang, LeiKTH,Skolan för kemi, bioteknologi och hälsa (CBH)(Swepub:kth)u1rjxvx7 (author)
  • Li, Fusheng,1985-KTH,Molekylär elektronik, CMD(Swepub:kth)u16naruo (author)
  • Sun, JunliangPeking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China. (author)
  • Ahlquist, Mårten S. G.,1979-KTH,Teoretisk kemi och biologi(Swepub:kth)u1agoeae (author)
  • Sun, Licheng,1962-KTH,Molekylär elektronik, CMD,Kemi(Swepub:kth)u1umfd9h (author)
  • KTHSkolan för kemi, bioteknologi och hälsa (CBH) (creator_code:org_t)

Related titles

  • In:ACS Catalysis: AMER CHEMICAL SOC8:5, s. 4375-43822155-5435

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