Zucchi C, Tiddia S, Boese R, Tschoerner C M, Bencze L, Pályi G
Department of Chemistry, University of Modena and Reggio Emilia, Via Campi 183; I-41100 Modena, Italy.
Chirality. 2001 Aug;13(8):458-64. doi: 10.1002/chir.1062.
A carbohydrate-derivative alkylcobalt carbonyl,([(1,2:5,6-di-O,O-isopropylidene-alpha-D-glucofuranos-3-yl)oxycarbonyl]methyl)cobalt tricarbonyl triphenylphosphene(3) was prepared and characterized by IR, NMR, and CD spectra, as well as by X-ray diffraction. The supramolecular chemistry in the crystalline P2(1)2(1)2(1) (chiral) phase and in solution was analyzed and compared. The bulky carbohydrate-based ligand stabilized one chiral conformation, which, however, is less ordered than for analogous compounds with more flexible and less bulky chiral groups. Intermolecular, H-bond interactions are more important in the P2(1)2(1)2(1) phase of complex 3 than at other analogous compounds.