An alkoxide cluster with 18 Li+ ions encapsulating two borate anions, [(tBuO)12Li18(BO3)2]
Yükleniyor...
Tarih
2003
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Blackwell Munksgaard
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The title compound, bis(borato) dodeca(tert-butoxo)octadeca-lithium, [Li-18(BO3)(2)(C4H9O)(12)], is formulated conveniently as [{((BuOLi)-Bu-t)(3)(Li3BO3)}(2)((BuOLi)-Bu-t)(6)]. A central 12-membered ring and two outer six-membered rings are formed by alternating Li+ cations and alkoxide O atoms. Sandwiched between the central ring and each of the outer rings is a planar array of three further Li+ cations surrounding a [BO3](3-) anion. Thus, the molecule consists of a cationic [Li-18((OBu)-Bu-t)(12)](6+) cage encapsulating two borate anions. This compound is the first example of a structurally characterized polynuclear lithium borate, and a rare case of a lithium alkoxide cage with nuclearity greater than eight. All the alkoxide ligands are triply bridging, and the lithium ions have trigonal-planar, trigonal-pyramidal and fourfold coordination, all with major distortions from regular coordination geometry.
Açıklama
Errington, John/0000-0001-5696-0332; Clegg, William/0000-0003-1643-5298
Anahtar Kelimeler
Kaynak
Acta Crystallographica Section C-Crystal Structure Communications
WoS Q Değeri
Q3
Scopus Q Değeri
N/A
Cilt
59
Sayı
Künye
closedAccess
