TY - JOUR
T1 - Use of a structurally characterized molecular cluster to form Yb3Al5O12 under ambient conditions
AU - Liu, Shengming
AU - Wei, Pingrong
AU - Wang, Yuzhong
AU - Santillan-Jimenez, Eduardo
AU - Bakus, Ronald C.
AU - Atwood, David A.
PY - 2005
Y1 - 2005
N2 - The synthesis and structure of the novel octametallic cluster [(Yb4(µ4-O)(µ2-OPri)2(µ2-Me)4)((µ2-Me)(µ2-OiPr)AlMe2)4] 1 and its use to form Yb3Al5O12 under ambient conditions is reported. The compound was formed by combining AlMe3 with 99.8% pure Yb(OiPr)3. Nevertheless, the compound has similarities with the known hydrolysis product Yb5(O)(OiPr)13, including a central Ybn-µn−oxide. In the structure each AlMe2 unit is joined to an ytterbium atom by bridging Me and OiPr groups in a manner that is observed for many other aluminum - lanthanide alkoxides. What is unprecedented for lanthanide oxide - alkoxide clusters, however, is the bridging of each pair of Yb atoms by two Me groups. The use of 1 to form Yb3Al5O12 is an indication that oxophilic mixed-metal oxide clusters that contain extensive metal - oxygen connectivity may be predisposed to hydrolyze to the mixed-metal oxide solid-state material. This concept was established previously for the aluminum-only Mitsubishi molecules [Al(µ-OEt)2AlR2)3], which are converted into nanoparticulate alumina by exposure of hexane solutions of the molecule to moist air.
AB - The synthesis and structure of the novel octametallic cluster [(Yb4(µ4-O)(µ2-OPri)2(µ2-Me)4)((µ2-Me)(µ2-OiPr)AlMe2)4] 1 and its use to form Yb3Al5O12 under ambient conditions is reported. The compound was formed by combining AlMe3 with 99.8% pure Yb(OiPr)3. Nevertheless, the compound has similarities with the known hydrolysis product Yb5(O)(OiPr)13, including a central Ybn-µn−oxide. In the structure each AlMe2 unit is joined to an ytterbium atom by bridging Me and OiPr groups in a manner that is observed for many other aluminum - lanthanide alkoxides. What is unprecedented for lanthanide oxide - alkoxide clusters, however, is the bridging of each pair of Yb atoms by two Me groups. The use of 1 to form Yb3Al5O12 is an indication that oxophilic mixed-metal oxide clusters that contain extensive metal - oxygen connectivity may be predisposed to hydrolyze to the mixed-metal oxide solid-state material. This concept was established previously for the aluminum-only Mitsubishi molecules [Al(µ-OEt)2AlR2)3], which are converted into nanoparticulate alumina by exposure of hexane solutions of the molecule to moist air.
KW - Aluminum
KW - Oxide
KW - Ytterbium
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U2 - 10.1080/10241220500046059
DO - 10.1080/10241220500046059
M3 - Article
AN - SCOPUS:85013612098
SN - 1024-1221
VL - 4
SP - 3
EP - 10
JO - Main Group Chemistry
JF - Main Group Chemistry
IS - 1
ER -