inorganic chemistry

Numerous molecular metal complexes have been examined as photocatalysts in homogenous solution. The reduction of water to hydrog ...

This reaction is facilitated by the high oxidizing power of Fe(IV). When suitable independent reactions for the reduction and ox ...

2 Cp 2 OsIII hiþ ! Cp 2 OsIV hi 2 þ þCp 2 OsII ð 15 Þ Accordingly, we suggest that the photolysis is preceded by a reversible di ...

This reaction proceeds also photochemically as indicated by the concomitant spectral changes that are identical in both cases. W ...

generated in the singlet state, at least partially. When the pho- tolysis is carried out in acetonitrile in the presence of diph ...

Finally, LMCT excitation leads to the reduction to Os(II) and oxi- dation of hydroxide, oxide, or peroxide to oxygen. It is appa ...

A. PHOTOREDUCTION OFCARBONATE IN ACOPPER(I) PHOSPHINECOMPLEX The photoreduction of CO 2 to CO by metal complexes has been studie ...

stabilize Cu(I) but provides also an IL state for light absorption. For our purpose, the complex (Pf 3 ) 2 CuI(m-CO 32
)CuI(Pf ...

f¼0.01 atlirr¼313 nm. Even at higher concentrations ofIchar- acteristic LF bands of Cu(II) cannot be detected in the spectrum of ...

that they are close in energy, although such complexes are unknown (38,39). Since the CuO 2 Cu fragment should be quite oxidizin ...

2CuITpþCO ORðÞ 2 þ2H 2 O!TpCuIIðÞm
OH 2 CuIITpþCOþ2ROH ð 28 Þ The photoreduction to CO was also observed when CO(OR) 2 was re ...

The primary photoproduct TpCuII(OH) 2 CuIITp is itself also photoactive. The photolysis of TpCuII(OH) 2 CuIITp in CH 3 CN at rat ...

(Eq. 28) they combine to the well-known binuclear hydroxy- bridged complex TpCuII(OH) 2 CuIITp ( 42 ). Generally, Cu(II) complex ...

Accordingly, it is of considerable interest to accomplish this reac- tion at ambient conditions. In principle, catalysis can be ...

with considerable electronic delocalization between both metal centers, the triple bond of free N 2 is also present in the coord ...

3.0 2.0 b a a 1.0 0.0 200 300 400 l (nm) 500 600 700 A FIG. 5. Spectral changes during the photolysis of 4.1 10
^4 M [(NH 3 ) ...

to be roughly 1:2. Accordingly, a further Os complex should have been formed. It was assumed to be [OsIII(NH 3 ) 5 (H 2 O)]^3 þ ...

ðÞNH 35 OsIIðÞN 2 OsIIIðÞNH (^35) hi 5 þ ! OsVIðÞNH 34 N hi 3 þ þ OsVðÞNH 34 N hi 2 þ þ2NH 3 ð 33 Þ thermal (63,64) and photoche ...

irradiated. Does the photolysis take place according to the simple Eq. (37)? ðÞNH 35 OsIIIðÞm-N 2 OsIIIðÞNH (^35) hi 6 þ !2 OsVI ...

V. Conclusion Even the most stable and least reactive molecules such as H 2 O, CO 2 , and N 2 can be photocleaved by intramolecu ...