TY - JOUR
T1 - Functionalization of UiO-66 metal-organic framework and highly cross-linked polystyrene with Cr(CO)3
T2 - In situ formation, stability, and photoreactivity
AU - Chavan, Sachin
AU - Vitillo, Jenny G.
AU - Uddin, Mohammed J.
AU - Bonino, Francesca
AU - Lamberti, Carlo
AU - Groppo, Elena
AU - Lillerud, Karl Petter
AU - Bordiga, Silvia
PY - 2010/8/24
Y1 - 2010/8/24
N2 - The formation and stability of (arene)Cr(CO)3 species inside two highly porous materials-UiO-66, which is a recently synthesized metal-organic framework, and a cross-linked poly(styrene-co-divinylbenzene) resin-are investigated in detail by means of complementary spectroscopic techniques and theoretical calculations. In particular, Fourier transform infrared (FT-IR), ultraviolet-visible (UV-vis), and X-ray absorption near-edge structure (XANES) spectroscopies, coupled with theoretical calculations, allow the formation of the (arene)Cr(CO)3 species to be followed in situ, starting from the Cr(CO)6 precursor, monitoring the changes in the vibrational and electronic properties of the materials. EXAFS spectroscopy gives the structural evidence of the functionalized unities. Finally, the photoinduced reactivity of Cr(CO)3 in UiO-66 is also explored, by following the substitution of one CO ligand with a N2 molecule. The overall presented data would become the starting point for the development of a systematic procedure for investigating functionalized porous matrices.
AB - The formation and stability of (arene)Cr(CO)3 species inside two highly porous materials-UiO-66, which is a recently synthesized metal-organic framework, and a cross-linked poly(styrene-co-divinylbenzene) resin-are investigated in detail by means of complementary spectroscopic techniques and theoretical calculations. In particular, Fourier transform infrared (FT-IR), ultraviolet-visible (UV-vis), and X-ray absorption near-edge structure (XANES) spectroscopies, coupled with theoretical calculations, allow the formation of the (arene)Cr(CO)3 species to be followed in situ, starting from the Cr(CO)6 precursor, monitoring the changes in the vibrational and electronic properties of the materials. EXAFS spectroscopy gives the structural evidence of the functionalized unities. Finally, the photoinduced reactivity of Cr(CO)3 in UiO-66 is also explored, by following the substitution of one CO ligand with a N2 molecule. The overall presented data would become the starting point for the development of a systematic procedure for investigating functionalized porous matrices.
UR - http://www.scopus.com/inward/record.url?scp=77955688076&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955688076&partnerID=8YFLogxK
U2 - 10.1021/cm1005899
DO - 10.1021/cm1005899
M3 - Article
AN - SCOPUS:77955688076
SN - 0897-4756
VL - 22
SP - 4602
EP - 4611
JO - Chemistry of Materials
JF - Chemistry of Materials
IS - 16
ER -