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

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

Abstract

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 (FC / DCOC)
Szymon Komorski,,
- Department Of Catalysis And Organometallic Chemistry
, Michał K. Leszczynski - [Institute of Physical Chemistry of the Polish Academy of Sciences]
Michał K. Leszczynski,,
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, Iwona Justyniak - [Institute of Physical Chemistry of the Polish Academy of Sciences]
Iwona Justyniak,,
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, Janusz Lewiński (FC / DCOC)
Janusz Lewiński,,
- Department Of Catalysis And Organometallic Chemistry
Journal seriesInorganic Chemistry, ISSN 0020-1669
Issue year2016
Vol55
No11
Pages5104-5106
Publication size in sheets0.3
ASJC Classification1604 Inorganic Chemistry; 1606 Physical and Theoretical Chemistry
DOIDOI:10.1021/acs.inorgchem.6b00745
URL http://pubs.acs.org/doi/abs/10.1021/acs.inorgchem.6b00745
Languageen angielski
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inorg_2016_pyrazolates.pdf 996.74 KB
Score (nominal)45
Score sourcejournalList
ScoreMinisterial score = 40.0, 31-01-2020, ArticleFromJournal
Ministerial score (2013-2016) = 45.0, 31-01-2020, ArticleFromJournal
Publication indicators Scopus Citations = 6; WoS Citations = 5; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.203; WoS Impact Factor: 2016 = 4.857 (2) - 2016=4.503 (5)
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