Benzoxaborolate ligands in group 13 metal complexes

Eliza Jaśkowska , Iwona Justyniak , Michał K. Cyrański , Agnieszka Adamczyk-Woźniak , Andrzej Sporzyński , Ewa Zygadło-Monikowska , Wanda Ziemkowska


A series of group 13 metal benzoxaborolates [R2MOB(o-CH2O)(C6H4)]2 [R = tBu, M = Al (2), R = Me, M = Ga (3), R = tBu, M = Ga (4), R = tBu, M = In (5)] were synthesized in reactions of 1,3-dihydro-1-hydroxy-2,1-benzoxaborole (1) with group 13 metal trialkyls. The compounds were characterized by elemental analysis, melting point measurements, 1H, 13C NMR, and IR spectroscopy. The molecular structure of 2–5 was determined by single-crystal X-ray diffraction. The structure of the compounds depends on the kind of metallic center. Reaction of tBu3Al with the benzoxaborole 1 leads to the aluminum derivative 2, similar to typical dialkylaluminum carboxylates, with a central eight-membered B2Al2O4 ring, in which two oxygen atoms of the benzoxaborolate unit are bonded to aluminum atoms. In the presence of gallium and indium trialkyls, the benzoxaborole 1 acts as an alcohol yielding complexes 3–5, similar to dialkylmetal alkoxides, with a central M2O2 (where M = Ga, In) ring. Thermal decomposition of compounds 2 and 4 revealed the liberation of a mixture of organoboron compounds.
Author Eliza Jaśkowska (FC / DCOC)
Eliza Jaśkowska,,
- Department Of Catalysis And Organometallic Chemistry
, Iwona Justyniak - [Institute of Physical Chemistry Polish Academy of Sciences (IChF PAN) [Polish Academy of Sciences (PAN)]]
Iwona Justyniak,,
- Instytut Chemii Fizycznej Polskiej Akademii Nauk
, Michał K. Cyrański - [Faculty of Chemistry (WChUW) [University of Warsaw (UW)]]
Michał K. Cyrański,,
- Wydział Chemii
, Agnieszka Adamczyk-Woźniak (FC / DPC)
Agnieszka Adamczyk-Woźniak,,
- Department Of Physical Chemistry
, Andrzej Sporzyński (FC / DPC)
Andrzej Sporzyński,,
- Department Of Physical Chemistry
, Ewa Zygadło-Monikowska (FC / CPCT)
Ewa Zygadło-Monikowska,,
- Chair Of Polymer Chemistry And Technology
, Wanda Ziemkowska (FC / DCOC)
Wanda Ziemkowska,,
- Department Of Catalysis And Organometallic Chemistry
Journal seriesJournal of Organometallic Chemistry, ISSN 0022-328X
Issue year2013
Publication size in sheets0.5
Keywords in EnglishAluminum, Gallium, Indium, Benzoxaborole, Thermogravimetric analysis
ASJC Classification2505 Materials Chemistry; 1604 Inorganic Chemistry; 1605 Organic Chemistry; 1606 Physical and Theoretical Chemistry; 1303 Biochemistry
Languageen angielski
1-s2.0-S0022328X13000508-main.pdf 615.43 KB
Score (nominal)30
Score sourcejournalList
ScoreMinisterial score = 30.0, 09-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 30.0, 09-01-2020, ArticleFromJournal
Publication indicators Scopus Citations = 11; WoS Citations = 10; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 0.794; WoS Impact Factor: 2013 = 2.302 (2) - 2013=2.109 (5)
Citation count*9 (2016-06-01)
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