Preparation and Properties of Inclusion Compounds of Cyclodextrins with Organotransition Metal Complexes
作者:
Akira Harada,
Shigetoshi Takahashi,
期刊:
Journal of Macromolecular Science: Part A - Chemistry
(Taylor Available online 1989)
卷期:
Volume 26,
issue 2-3
页码: 373-380
ISSN:0022-233X
年代: 1989
DOI:10.1080/00222338908051980
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Inclusion compounds of transition metal complexes of cycloocta-1,5-diene (cod) and norbornadiene (nbd) with cyclodextrins were prepared. Two-to-one (cyclodextrin:guest) inclusion compounds were obtained in high yields by the treatment of β-cyclodextrin (β-CD) with [(L)RhCl]2(L = nbd or cod) and 1:1 inclusion compounds were obtained by the reaction of β-CD with (cod)PtX2(X = Cl, Br, or I) in high yields, while γ-CD formed 1:1 inclusion compounds with (cod)PtX2(X = Br or I). The formation of inclusion compounds is selective. α-CD did not form inclusion compounds with any transition-metal complexes with cycloocta-1,5-diene. Thermogravimetric measurements show that the complexes are stabilized by inclusion in cyclodextrin cavities. The inclusion compounds were characterized by1H-NMR, IR, UV, and circular dichroism spectra.
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