Citation
Sm. Ivanova et al., Relative Lewis basicities of six Al(ORF)(4)(-) superweak anions and the structures of LiAl{OCH(CF3)(2)}(4) and [1-Et-3-Me-1,3-C3H3N2]- [Li{Al{OCH(CF3)(2)}(4)}(2)], CHEM-EUR J, 7(2), 2001, pp. 503-510
Citations number
38
Categorie Soggetti
Chemistry
Journal title
CHEMISTRY-A EUROPEAN JOURNAL
ISSN journal
09476539
→ ACNP
Volume
7
Issue
2
Year of publication
2001
Pages
503 - 510
Database
ISI
SICI code
0947-6539(20010119)7:2<503:RLBOSA>2.0.ZU;2-G
Abstract
The relative Lewis basicities of six Al(ORF)(4)(-) ions, Al{OC(CH3)-(CF3)(2
)}(4), Al{OC(CF3)(3)}(4)(-), Al{OCPh-(CF3)(2)}(4)(-), Al{OC{4-C6H4(tBu)}(CF
3)2}(4)(-), Al{OC(Cy)(CF3)(2)}(4)(-), and Al{OCPh2-(CF3)}(4)(-), have been
determined by measuring their relative coordinating abilities towards Li+ i
n dichlorome-thane. The relative Li+ Lewis basicities of the Al(ORF)(4)(-)
ions are linearly related to the aqueous pK(a) values of the corresponding
parent HORF fluoroalco-hols. The Lewis basicity of Al{OCH-(CF3)(2)}(4)(-) c
ould not be measured because two of these anions can coordinate to one Lication. The structures of LiAl-{OCH(CF3)(2)}(4) and [1-Et-3-Me-1,3-C-3-H3N2
][Li{Al{OCH(CF3)(2)}(4)}(2)] were determined.