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Coordination Chemistry of N ‐(2‐Pyridylethyl)‐Substituted Bulky Amidinates and Triazenides of Magnesium
Author(s) -
Kalden Diana,
Krieck Sven,
Görls Helmar,
Westerhausen Matthias
Publication year - 2018
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201800890
Subject(s) - chemistry , triazene , magnesium , amine gas treating , medicinal chemistry , molecule , intermolecular force , stereochemistry , organic chemistry
The amidines Dipp‐N=C( R )‐NH(C 2 H 4 R′) [R = t Bu, R′ = Ph ( 1a ); R = Ph, R′ = Py ( 1b )] as well as 1‐(2,4,6‐triisopropylphenyl)‐3‐(2‐pyridylethyl)triazene ( 1c ) are magnesiated with commercially available dibutylmagnesium yielding the complexes [(thf)Mg{Dipp‐N=C( t Bu)‐N(C 2 H 4 Ph)} 2 ] ( 3a ), [Mg{Dipp‐N=C(Ph)‐N(C 2 H 4 Py)} 2 ] ( 3b ), and [Mg{Tripp‐N=N‐N(C 2 H 4 Py)} 2 ] ( 3c ). Handling and isolation of triazene 1c has been performed at room temperature or below to avoid elimination of dinitrogen and formation of 2‐pyridylethyl‐(2,4,6‐triisopropylphenyl)amine ( 2 ). In the solid state, the compounds 1b and 1c form dimers via intermolecular hydrogen bridges to the pyridyl groups of neighbouring molecules.