By Dr. Edwin Weber, Prof. Dr. Fritz Vögtle (auth.), Professor Dr. Fritz Vögtle, Dr. Edwin Weber (eds.)
The medical and functional curiosity in coronands (crown ethers), cryptands, podands as complexing brokers for cations in addition to for anions and impartial low molecular species is indisputable 1,2). The chemistry of crown compounds is gradually expanding. approximately 250 unique papers facing crown chemistry seemed merely in 1980. New molecules· with crown ether homes are continually synthesized and new purposes discov,?red. due to loss of area, just a small variety of the unique guides is males tioned right here. hence, within the literature compilation just some, yet suitable works are chosen for every bankruptcy. each time attainable, reference is made to studies or review-like articles on my own via which origin,al works could be consulted. The studies given lower than ref. 1) are thought of to be the main correct. The formulae provided within the figures can be understood as consultant buildings outlining a particular box. 2 category of Oligo-/Multidentate impartial Ligands and in their Complexes this day, a contrast is made among the classical ring oligoethers (crown ethers) and monocyclic coronands, oligocyclic round cryptands and the acyclic podands with recognize to topological points 3). This type and the topology are illustrated in Fig. 1, every one determine representing the minimal variety of donor atoms and chain segments attribute of every type of compounds. Multidentate mono cyclic ligands with any form of donor atoms are known as coronands ("crown compounds"), whereas the time period crown ether might be reserved for cyclic oligoethers completely containing oxygen as donor atom.
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Extra info for Host Guest Complex Chemistry / Macrocycles: Synthesis, Structures, Applications
Chern. Ber. 112, 899 (1979) a) Fornasier, R. : Tetrahedron Lett. 1976, 1381 b) Haines, A. : Carbohydr. Res. : Angew. Chern. 86, 896 (1974); Angew. , Int. Ed. Eng!. 13, 814 (1974); b) Hyatt, J. : 1. Org. Chern. 43, 1808 (1978) a) Gokel, G. , Dishong, D. , Diamond, C. : J. Chern. Soc. Chern. Commun. 1980, 1053; b) cf. also Lehn, J. , Sauvage, 1. : J. Am. Chern. Soc. 97, 6700 (1975); c) Weitl, F. , Raymond, K. , Smith, W. , Howard, T. : ibid. 100, 1170 (1978) a) Beresford, G. , Stoddart, J. : Tetrahedron Lett.
2 The Ion-Cavity Concept. . . . . . . . . . . 3 Effects of Anion and Cation Type on Complex Structure . . . 5 Sandwich Formation . . . 6 Ternary Crown Ether Complexes. . . . . . 91 6 Macropolycyclic Host Molecules: Cryptands and their Cation Complexes 7 Open-Chain Polyethers: Wrapping of Metal Ions . . . 1 Podands with Aromatic Donor End Groups . . . 2 Complexes ofPodands Containing End Groups Capable of Hydrogen Bonding. . . . . . 4 Tripode Ligands .
Coord. Chern. Rev. : Chemiker-Ztg. : Bull. Soc. Chim. Fr. 1974, 89; j) Christensen, 1. , Eatough, D. , Izatt, R. : Chern. Rev. 74,351 (1974); k) Bradshaw, J. , Stott, P. : Coord. Chern. Rev. : Inorg. Chim. Acta 45, L65 (1980) Reviews: a) Chock, P. , Titus, E. : Progr. Inorg. Chern. , Morf, W. , Meier, P. Ch. in Lit. 1'1 c) Ovchinnikov, Yu. , Ivanov, V. , Shkrob, A. : Membraneactive Complexones, B. B. A. Library Vol. 12, Elsevier, Amsterdam, Oxford, New York, 1974; d) Pressman, B. : Ann. Rev. Biochem.
Host Guest Complex Chemistry / Macrocycles: Synthesis, Structures, Applications by Dr. Edwin Weber, Prof. Dr. Fritz Vögtle (auth.), Professor Dr. Fritz Vögtle, Dr. Edwin Weber (eds.)