Complexes of zirconium with aryl substituted triamidoamines: molecular structures of amide and alkyl derivatives

Reactions of the arylated TREN derivatives N(CH 2CH 2NHAr) 3 [Ar=2,4,6-C 6Me 3H 2 (H 3TMT), 3,5-C 6Bu t 2H 3 (H 3TDT)] individually with Zr(NMe 2) 4 and Zr(CH 2Ph) 4 give the azazirconatranes [Zr(TMT)(NMe 2)], [Zr(TDT)(NMe 2)] and [Zr(TDT)(CH 2Ph)] and unexpectedly [Zr(HTMT)(CH 2Ph) 2]. The molecula...

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Bibliographic Details
Published inJournal of organometallic chemistry Vol. 606; no. 2; pp. 141 - 146
Main Authors Morton, Colin, Gillespie, Kevin M, Sanders, Christopher J, Scott, Peter
Format Journal Article
LanguageEnglish
Published LAUSANNE Elsevier B.V 28.07.2000
Elsevier
Subjects
Alkyl
Amide
Azametallatrane
Chemistry
Chemistry, Inorganic & Nuclear
Chemistry, Organic
Physical Sciences
Science & Technology
TREN
X-ray structure
Zirconium
TREN
Azametallatrane
Amide
Zirconium
Alkyl
X-ray structure
URANIUM
OXIDATION
ACTIVATION
MOLYBDENUM
<(ME3SINCH2CH2)N>(3-) LIGAND
DECOMPOSITION
azametallatrane
TITANIUM COMPLEXES
amide
CONTAIN
DINITROGEN
TUNGSTEN
alkyl
zirconium
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Summary:Reactions of the arylated TREN derivatives N(CH 2CH 2NHAr) 3 [Ar=2,4,6-C 6Me 3H 2 (H 3TMT), 3,5-C 6Bu t 2H 3 (H 3TDT)] individually with Zr(NMe 2) 4 and Zr(CH 2Ph) 4 give the azazirconatranes [Zr(TMT)(NMe 2)], [Zr(TDT)(NMe 2)] and [Zr(TDT)(CH 2Ph)] and unexpectedly [Zr(HTMT)(CH 2Ph) 2]. The molecular structures of [Zr(TMT)(NMe 2)] and [Zr(TDT)(CH 2Ph)] show that the triamidoamine ligand is arranged with the usual three-fold symmetry about the metal and that the aryl substituents form a bowl cavity with the apical ligand at the base. The reactions of the alkyl with dihydrogen lead to decomposition, and a hydride species such as that proposed in earlier studies could not be detected.
ISSN:0022-328X
1872-8561
DOI:10.1016/S0022-328X(00)00310-7