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Article

Studies Directed to Understanding the Structure of Chitosan−Metal Complexes: Investigations of Mono- and Disaccharide Models with Platinum(II) Group Metals

Supporting Info

Sine A. Johannesen,^† Bent O. Petersen,^‡ Jens Ø. Duus,*^‡ and Troels Skrydstrup*^†

Department of Chemistry and Interdisciplinary Nanoscience Center, University of Aarhus, Langelandsgade 140, 8000 Aarhus C, Denmark, and Carlsberg Laboratory, Gamle Carlsberg Vej 10, 2500 Valby, Denmark

Inorg. Chem., 2007, 46 (10), pp 4326–4335

DOI: 10.1021/ic070016r

Publication Date (Web): April 20, 2007

†

University of Aarhus.

‡

Carlsberg Laboratory.

To whom correspondence should be addressed. E-mail: ts@chem.au.dk.

Abstract

X-ray and NMR experiments were performed with simple chitosan models based on glucosamine monosaccharides and disaccharides to understand the binding properties and structures of the complexes formed between this polysaccharide and platinum(II) metals. Subjection of the glucosamine derivatives with [PdCl₂(PhCN)₂] provided trans-diamine complexes which upon further treatment with excess (NH₄)PF₆ generated complexes possessing two 5-membered chelate rings involving the C2-amine and the C3-hydroxyl group of the two individual glucosamine units.

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