@article {Sharma:2016:0095-8972:135,
title = "Homometallic glycolates containing hydroxyl functionality for anchoring another metal: synthesis and characterization of heterometallic alkoxideglycolates of Ti and Zr incorporating Al and Nb",
journal = "Journal of Coordination Chemistry",
parent_itemid = "infobike://tandf/gcoo",
publishercode ="tandf",
year = "2016",
volume = "69",
number = "1",
publication date ="2016-01-02T00:00:00",
pages = "135-148",
itemtype = "ARTICLE",
issn = "0095-8972",
eissn = "1029-0389",
url = "https://www.ingentaconnect.com/content/tandf/gcoo/2016/00000069/00000001/art00013",
doi = "doi:10.1080/00958972.2015.1112900",
keyword = "heterometallics, X-ray structure, precursors, alkoxides, Metal glycolates",
author = "Sharma, Nandu Bala and Shahai, Jayshree and Ghadwal, Rajendra Singh and Singh, Anirudh and Jeanneau, Erwann and Mishra, Shashank",
abstract = "Reaction of Ti(OPr
i
)4 with 2-methyl-2,4-pentanediol [HOGOH, where G=CMe2CH2CH(Me)] in 1:3M ratio under reflux afforded the monomeric [Ti(OGO)(OGOH)2] (1), which on further reactions
with [Al(OPr
i
)3] or [Nb(OPr
i
)5] in 1:1 and 1:2M ratios afforded heterometallic derivatives, [Ti(OGO)3{M(OPr
i
)n2}] and [Ti(OGO)3{M(OPr
i
)n1}2]
[where M=Al (n=3), Nb (n=5)], respectively. Similar reactions of Zr(OPr
i
)4Pr
i
OH with a number of glycols [HOGOH, where G=CH(Me)CH(Me), CMe2CMe2, CMe2CH2CH(Me)]
yielded dimeric [Zr2(OGO)2(OGOH)4]. [Zr2(OGO)6{M(OPr
i
)n2}2] and [Zr2(OGO)4(OGOH)2M(OPr
i
)n2] [M=Al (n=3),
Ti (n=4), Nb (n=5)] were prepared by 1:2 and 1:1 reactions, respectively, of [Zr2(OGO)2(OGOH)4] with Al(OPr
i
)3, Ti(OPr
i
)4, or Nb(OPr
i
)5.
Surprisingly, a 1:2 reaction of [VO(OPr
i
)3] with 2,2-diethyl-1,3-propanediol in benzene followed a different reaction and produced a neutral tetranuclear derivative [V4(O)4(-OCH2CEt2CH2O)2(OCH2CEt2CH2O)4]
(18). All of these derivatives were characterized by elemental analysis, molecular weight measurements, FT-IR, and 1H NMR (and wherever possible, by 27Al or 51V NMR) spectroscopic studies. The derivatives [Zr2(OCMe2CH2CH(Me)O)2(OCMe2CH2CH(Me)OH)4]
(9 and 18) were additionally characterized by single-crystal X-ray structure analysis.",
}