Synthesis and structure of alkylzinc 3,5-diphenylpyrazolates: Dramatic influence of steric and solvent effects

Szymon Komorski , Michał K. Leszczynski , Iwona Justyniak , Janusz Lewiński


Three new structurally varied alkylzinc derivatives of 3,5-diphenylpyrazole with different coordination modes of pyrazolate ligands were synthesized and structurally characterized. The observed aggregation mode of the original trimeric aggregate [tBuZn(pzPh2)]3 is entirely different from the commonly anticipated ring-stacking and ring-laddering principle for the related compounds, thus providing a new look at the aggregation and stabilization of alkylzinc species. The reaction of R2Zn (R = Et, tBu) with 3,5-diphenylpyrazole results in the formation of three structurally diverse alkylzinc pyrazolates: a novel dinuclear tetrahydrofuran solvate, an unprecedented trimeric structure, and a spiro trinuclear aggregate. Structural analysis of the resulting complexes provides a new look at the aggregation and stabilization of alkylzinc species.
Author Szymon Komorski ZKChM
Szymon Komorski,,
- Department Of Catalysis And Organometallic Chemistry
, Michał K. Leszczynski
Michał K. Leszczynski,,
, Iwona Justyniak
Iwona Justyniak,,
, Janusz Lewiński ZKChM
Janusz Lewiński,,
- Department Of Catalysis And Organometallic Chemistry
Journal seriesInorganic Chemistry, ISSN 0020-1669
Issue year2016
Publication size in sheets0.3
Languageen angielski
inorg_2016_pyrazolates.pdf 996.74 KB
Score (nominal)45
ScoreMinisterial score = 40.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 4.857 (2) - 2016=4.503 (5)
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