J. Braz. Chem. Soc., Vol. 21, No. 7, S1, 2010. Printed in Brazil - ©2010 Sociedade Brasileira de Química 0103 - 5053 $6.00+0.00 Lucilene L. de Oliveira, Roberta R. Campedelli, Adão L. Bergamo, Ana H. D. P dos Santos and Osvaldo L. Casagrande* Laboratório de Catálise Molecular, Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, 90501-970 Porto Alegre-RS, Brazil Figura S1. HMBC spectra of 1-(2-hydroxyethyl)-3-methyl-5-phenylpyrazole (isomer A). *e-mail: [email protected] Supplementary Information Substituted Tridentate Pyrazolyl Ligands for Chromium and Nickel-Catalyzed Ethylene Oligomerization Reactions. Effect of Auxiliary Ligand on Activity and Selectivity