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Cover Picture: Molecular Heterogeneous Catalysis: A Single‐Site Zeolite‐Supported Rhodium Complex for Acetylene Cyclotrimerization (Chem. Eur. J. 26/2007)
Author(s) -
Kletnieks Philip W.,
Liang Ann J.,
Craciun Raluca,
Ehresmann Justin O.,
Marcus David M.,
Bhirud Vinesh A.,
Klaric Meghan M.,
Hayman Miranda J.,
Guenther Darryl R.,
Bagatchenko Olesya P.,
Dixon David A.,
Gates Bruce C.,
Haw James F.
Publication year - 2007
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200790096
Subject(s) - rhodium , acetylene , faujasite , ethylene , zeolite , chemistry , catalysis , photochemistry , polymer chemistry , crystallography , organic chemistry
Essentially molecular surface catalysis was demonstrated by D. A. Dixon, B. C. Gates, J. F. Haw et al. and is reported in their Full Paper on page 7294 ff. [Rh(C 2 H 4 ) 2 (acac)] reacted with a dealuminated faujasite zeolite to give anchored rhodium complexes that retained their ethylene ligands, with each Rh atom bonded to two zeolite oxygen atoms, as shown by EXAFS, IR, and 13 C NMR spectroscopy. Temperature‐dependent NMR spectra demonstrated the structural uniformity of the complexes; acetylene reacted with the complexes, replacing ethylene and initiating catalytic acetylene cyclotrimerization.