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Stepwise Water Splitting: Thermal H2 and Light-Induced O2 Liberation
A sequence of reactions leading to
thermal reduction of water with
liberation of H2, and light-induced
oxidation of water with liberation of O2,
involving fully characterized mononuclear Ru(II) complexes, with overall
retention of the metal oxidation state,
has been demonstrated; O-O bond
formation is intramolecular and involves
a single metal center.
Science 2009, 324, 74
2
Catalytic Dehydrogenative Coupling of Alcohols to Acetals
R
R
Catalyst
O
2H2 +
Catalyst
R
R = alkyl, aryl groups
O
R
N
R
O
-H2O
Base
O
R
HO
Cl
+ H2
P
Ru
H
O
catalyst
P
4
Complex 4, which bears a non-planar
acridine moiety, catalyzes in a neutral
medium the unprecedented
transformation of primary alcohols to
acetals with the liberation of H2. In the
presence of base, dehydrogenative
coupling of alcohols to form esters
takes place.
J. Am. Chem. Soc. 2009, 131, 3146
Stepwise Water Splitting: Thermal H2 and Light-Induced O2 Liberation
2
A sequence of reactions leading to
thermal reduction of water with
liberation of H2, and light-induced
oxidation of water with liberation of O2,
involving fully characterized mononuclear Ru(II) complexes, with overall
retention of the metal oxidation state,
has been demonstrated; O-O bond
formation is intramolecular and involves
a single metal center.
Science 2009, 324, 74