Cobalt bis(dicarbollides)(1-) covalently attached to the calix[4]arene platform: The first combination of organic bowl-shaped matrices and inorganic metallaborane cluster anions

0029906 - ÚACH 2006 RIV DE eng J - Journal Article
Grüner, Bohumír - Mikulášek, Libor - Báča, Jiří - Císařová, I. - Böhmer, V. - Danila, C. - Reinoso-García, M.M. - Verboom, W. - Reinhoudt, D.N. - Casnati, A. - Ungaro, R.
Cobalt bis(dicarbollides)(1-) covalently attached to the calix[4]arene platform: The first combination of organic bowl-shaped matrices and inorganic metallaborane cluster anions.
[Kobalt bis(dicarbollidy)(-1)kovalentně navázané na calix[4]aronovou platformu. První kombinace organických matic tvaru košíku a anorganických metallaboranových klastrových aniontů.]
European Journal of Organic Chemistry. -, č. 10 (2005), s. 2022-2039. ISSN 1434-193X. E-ISSN 1099-0690
R&D Projects: GA MŠMT(CZ) LC523; GA AV ČR KSK4050111
Grant - others:EEC(XE) F16W-CT-2003-508854
Institutional research plan: CEZ:AV0Z40320502
Keywords : calixarenes * carboranes * dicarbollides
Subject RIV: CA - Inorganic Chemistry
Impact factor: 2.548, year: 2005

Various calix[4]arene and resorc[4]arene ionic compounds substituted by cobalt bis(dicarbollide) anions (1) have been prepared for the first time. From tBu-calix[4]arene (A) the complete series of mono-, di-, tri- and tetrasubstituted derivatives bearing one to four cluster anions on the lower rim (36) have been obtained in the form of their alkali-metal salts by O-alkylation with the 1-dioxane derivative [8-O(CH2-CH2)(2)O(+)-1,2-C2B9H10)-(1',2'-C2B9H11)-3,3'-Co] (2), all of which are syn or cone isomers. In contrast, disubstitution of the dipropyl ether of tBu-calix[4]arene (B) led to a mixture of the cone and 1,3-alternate conformers 7a and 7b, respectively.

Doposud byly připraveny iontové supramolekulární látky založené na calix[4]arenech a resorc[4]arenech, které nesou paralelně vázané hydrofolní anionty kobalt bis(dikarbollidu).
Permanent Link: http://hdl.handle.net/11104/0119692