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Bis(pyrazol‐1‐yl)acetato Ligands in Ruthenium Chemistry: Syntheses and Structures of Ruthenium(II) and Ruthenium(III) Complexes with bpza and bdmpza
Author(s) -
LópezHernández Alberto,
Müller Rainer,
Kopf Henning,
Burzlaff Nicolai
Publication year - 2002
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 - 10.1002/1099-0682(200203)2002:3<671::aid-ejic671>3.0.co;2-v
Subject(s) - ruthenium , chemistry , combinatorial chemistry , organic chemistry , polymer chemistry , catalysis
New ruthenium(II) and ruthenium(III) complexes with the ligands bis(pyrazol‐1‐yl)acetate (bpza) and bis(3,5‐dimethylpyrazol‐1‐yl)acetate (bdmpza) are reported. The reaction of ruthenium trichloride hydrate, H[bpza], and excess PPh 3 yielded [Ru(bpza)Cl(PPh 3 ) 2 ] as a racemic mixture of an unsymmetrical isomer with traces of a symmetrical isomer. Similar reaction conditions using the more bulky H[bdmpza] yielded [Ru(bdmpza)Cl 2 (PPh 3 )]. Reaction of K[bpza] with [RuCl 2 (PPh 3 ) 3 ] offered a second route to [Ru(bpza)Cl(PPh 3 ) 2 ]. Also, [Ru(bdmpza)Cl(PPh 3 ) 2 ] was accessed by this synthetic approach. All three new complexes were characterized by X‐ray structure determination.