Alumazene adducts with triphenylphosphine oxide

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00016265" target="_blank" >RIV/00216224:14310/06:00016265 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Alumazene adducts with triphenylphosphine oxide

Original language description

1,3,5-trimethyl-2,4,6-tris(2,6-diisopropylphenyl)alumazene [2,6-(i-Pr)2C6H3NAlMe]3, (1) is a benzene-like iminoalane with a planar hexagonal (Al-N)3 core. The aluminum centers are highly Lewis acidic due to the low delocalization of nitrogen lone pairs.We examined the alumazene ability to form acid-base adducts with triphenylphosphine oxide. Both monoadduct, 1(OPPh3), (2) and bisadduct 1(OPPh3)2, (3) were prepared, isolated, and spectroscopically characterized. Their molecular structures were determined by the single-crystal X-ray diffraction method. The monoadduct 2 displays a boat conformation of the central ring with very short Al[sbnd]N bonds (1.779, 1.769(2) ?). The bisadduct 3 features the expected trans geometry in contrast to the previously reported bisadduct cis-1[OP(OMe)3]2. A different behavior of 2 and 3 in solution was observed by NMR spectroscopy. The monoadduct 2 is stable to dissociation while 3 shows signal broadening by chemical exchange because of the weakening of t

Czech name

Adukty alumazenu s trifenylfosfinoxidem

Czech description

1,3,5-trimethyl-2,4,6-tris(2,6-diisopropylfenyl)alumazen [2,6-(i-Pr)2C6H3NAlMe]3, (1) je iminoalan analogický benzenu s planárním šestičlenným (Al-N)3 centrálním kruhem. Hliníkové atomy jsou Lewisovsky kyselé z důvodu nízké delokalizace volných e párů naN. Adukty alumazenu s trifenylfosfin oxidem - monoadukt, 1(OPPh3), (2) a bisadukt 1(OPPh3)2, (3) byly připraveny, isolovány a IR a NMR spektroskopicky charakterizovány. Jejich molekulové struktury byly určeny rtg. difrakčními metodami.

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CA - Inorganic chemistry

OECD FORD branch

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Project

<a href="/en/project/GA203%2F04%2F0296" target="_blank" >GA203/04/0296: Sonochemical synthesis of oxide and phosphate materials</a><br>

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2006

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Main Group Chemistry

ISSN

1024-1221

e-ISSN

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Volume of the periodical

5

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

79-88

UT code for WoS article

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EID of the result in the Scopus database

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