Abstract
Structural analysis of the resting state of [NiFe]hydrogenase ([NiFe]H 2ase) shows that the active site has a characteristic bis(μ-thiolato)NiFe unit, where the Ni atom and the Fe atom are bridged by an undetermined oxygen-bearing ligand. This ligand probably derives from the aqueous solvent and is therefore most likely to be H2O, OH - or O2-. Here, we compare the reactivities of a NiFe and a NiRu complex when bearing either acetonitrile or aqueous ligands and demonstrate the critical role of an aqueous ligand in hydrogenase and its mimics. We also make observations on the necessity of organometallic metal-carbon bonds to the supporting frameworks.
| Original language | English |
|---|---|
| Pages (from-to) | 4304-4309 |
| Number of pages | 6 |
| Journal | Dalton Transactions |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - Jun 29 2009 |
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All Science Journal Classification (ASJC) codes
- Inorganic Chemistry
Cite this
Critical aspects of [NiFe]hydrogenase ligand composition. / Ichikawa, Koji; Matsumoto, Takahiro; Ogo, Seiji.
In: Dalton Transactions, No. 22, 29.06.2009, p. 4304-4309.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Critical aspects of [NiFe]hydrogenase ligand composition
AU - Ichikawa, Koji
AU - Matsumoto, Takahiro
AU - Ogo, Seiji
PY - 2009/6/29
Y1 - 2009/6/29
N2 - Structural analysis of the resting state of [NiFe]hydrogenase ([NiFe]H 2ase) shows that the active site has a characteristic bis(μ-thiolato)NiFe unit, where the Ni atom and the Fe atom are bridged by an undetermined oxygen-bearing ligand. This ligand probably derives from the aqueous solvent and is therefore most likely to be H2O, OH - or O2-. Here, we compare the reactivities of a NiFe and a NiRu complex when bearing either acetonitrile or aqueous ligands and demonstrate the critical role of an aqueous ligand in hydrogenase and its mimics. We also make observations on the necessity of organometallic metal-carbon bonds to the supporting frameworks.
AB - Structural analysis of the resting state of [NiFe]hydrogenase ([NiFe]H 2ase) shows that the active site has a characteristic bis(μ-thiolato)NiFe unit, where the Ni atom and the Fe atom are bridged by an undetermined oxygen-bearing ligand. This ligand probably derives from the aqueous solvent and is therefore most likely to be H2O, OH - or O2-. Here, we compare the reactivities of a NiFe and a NiRu complex when bearing either acetonitrile or aqueous ligands and demonstrate the critical role of an aqueous ligand in hydrogenase and its mimics. We also make observations on the necessity of organometallic metal-carbon bonds to the supporting frameworks.
UR - http://www.scopus.com/inward/record.url?scp=67649217834&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67649217834&partnerID=8YFLogxK
U2 - 10.1039/b819395a
DO - 10.1039/b819395a
M3 - Article
C2 - 19662307
AN - SCOPUS:67649217834
SP - 4304
EP - 4309
JO - Dalton Transactions
JF - Dalton Transactions
SN - 1477-9226
IS - 22
ER -