Research

Extending the family of titanium heterometallic-oxo-alkoxy cages


Reference:

Eslava, S., Goodwill, B.P.R., McPartlin, M. and Wright, D.S., 2011. Extending the family of titanium heterometallic-oxo-alkoxy cages. Inorganic Chemistry, 50 (12), pp. 5655-5662.

Related documents:

This repository does not currently have the full-text of this item.
You may be able to access a copy if URLs are provided below. (Contact Author)

Official URL:

http://dx.doi.org/10.1021/ic200350j

Related URLs:

Abstract

Here we investigate the synthesis of high-nuclearity heterometallic titanium oxo-alkoxy cages using the reactions of metal chlorides with [Ti(OEt) ] or the pre-formed homometallic titanium-oxo-alkoxy cage [Ti O (OEt) ] (A). The octanuclear Ti Co cage [Ti CoO (OEt) Cl] (1) (whose low-yielding synthesis we reported earlier) can be made in better yield, reproducibly by the reaction of a mixture of heptanuclear [Ti O (OEt) ] (A) and [KOEt] with [Co Cl ] in toluene. A alone reacts with [Co Cl ] and [Fe Cl ] to form [Ti Co O (OEt) Cl ] (2) and [Ti Fe O (OEt) Cl ] (3), respectively. Like 1, compounds 2 and 3 retain the original Ti fragment of A and the II-oxidation state of the transition metal ions (Tm). In contrast, from the reaction of [Ti(OEt) ] with [Cr Cl ] it is possible to isolate [Ti Cr O(OEt) Cl] (4) in low yield, containing a Ti Cr core in which oxidation of Cr from the II to V oxidation state has occurred. Reaction of [Mo Cl ] with [Ti(OEt)] in [EtOH] gives the Ti Mo cage [{Ti Mo O (OEt) } ] (5). The single-crystal X-ray structures of the new cages 2, 3, 4, and 5 are reported. The results show that the size of the heterometallic cage formed can be influenced by the nuclearity of the precursor. In the case of 5, the presence of homometallic Mo-Mo bonding also appears to be a significant factor in the final structure. © 2011 American Chemical Society.

Details

Item Type Articles
CreatorsEslava, S., Goodwill, B.P.R., McPartlin, M. and Wright, D.S.
DOI10.1021/ic200350j
Related URLs
URLURL Type
http://www.scopus.com/inward/record.url?scp=79958805005&partnerID=8YFLogxKUNSPECIFIED
DepartmentsFaculty of Engineering & Design > Chemical Engineering
RefereedYes
StatusPublished
ID Code41018

Export

Actions (login required)

View Item