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On the Question of Site‐Selective Ligand Exchange in Carboxylate‐Substituted Metal Oxo Clusters
Author(s) -
Kreutzer Johannes,
Czakler Matthias,
Puchberger Michael,
Pittenauer Ernst,
Schubert Ulrich
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500193
Subject(s) - chemistry , carboxylate , acetylacetone , isostructural , ligand (biochemistry) , cluster (spacecraft) , medicinal chemistry , metal , stereochemistry , crystallography , inorganic chemistry , crystal structure , organic chemistry , biochemistry , receptor , computer science , programming language
Reaction of [Ti 4 Zr 4 O 6 (OBu) 4 (OMc) 16 ] (OMc = methacrylate) with acetylacetone (acacH) resulted in dissection of the cluster and formation of [Ti(OBu) 2 (acac) 2 ] and the smaller cluster [Ti 2 Zr 4 O 4 (OMc) 16 ]. In contrast, the same reaction with [Zr 6 O 4 (OH) 4 (OOCR) 12 ] 2 · 6RCOOH (R = Et, CH 2 CH=CH 2 ) led to site‐selective substitution of two carboxylate ligands and formation of isostructural [Zr 6 O 4 (OH) 4 (OOCR) 12– x (acac) x ] 2 · 6RCOOH ( x ≤ 1).