Journal of Organometallic Chemistry p. 1 - 8 (2014)
Update date:2022-08-05
Topics:
Rafikova, Khadichakhan
Kystaubayeva, Nurzhamal
Aydemir, Murat
Kayan, Cezmi
Ocak, Yusuf Selim
Temel, Hamdi
Zazybin, Alexey
Gürbüz, Nevin
?zdemir, Ismail
The reaction of [Rh(μ-Cl)(cod)]2 and Ir(η5- C5Me5)(μ-Cl)Cl]2 with aminophosphine ligands Cy2PNHCH2-C4H3X (X: O; S) gave a range of new monodendate [Rh(Cy2PNHCH2-C4H 3O)(cod)Cl], (1), [Rh(Cy2PNHCH2-C 4H3S)(cod)Cl], (2), [Ir(Cy2PNHCH 2-C4H3O)(η5-C5Me 5)Cl2], (3) and [Ir(Cy2PNHCH2-C 4H3S)(η5-C5Me 5)Cl2], (4) complexes, which were characterized by analytical and spectroscopic methods. The new rhodium(I) and iridium(III) catalysts were applied to transfer hydrogenation of acetophenone derivatives using 2-propanol as a hydrogen source. The results showed that the corresponding alcohols could be obtained with high activity (up to 99%) under mild conditions. Notably, [Rh(Cy2PNHCH2-C4H 3O)(cod)Cl] complex (1) is much more active than the other analogous complexes in the transfer hydrogenation. Moreover, organic-inorganic rectifying contacts were fabricated forming rhodium(I) and iridium(III) complex thin films on n-Si semiconductors and evaporating Au metal on the structures. Electrical properties of the contacts including ideality factor, barrier height and series resistance were determined using their current-voltage (I-V) data. The photoelectrical characteristics of the devices were examined under the light with 40-100 mW/cm2 illumination conditions. It was seen that light had strong effects on I-V characteristics of the devices and the ones fabricated using 3 and 4 complexes had unusually forward and reverse bias photoconducting behavior.
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