Title: Examining steric and electronic effects on dimer formation of dioxovanadium(V) complexes in the solid state
Category: Research Poster
Author(s): Bridger Yett
Presenter(s): Bridger Yett
Mentors(s): Debbie Crans, Adam Miller
Authors: Bridger N. Yett, Adam R. Miller and Debbie Crans Purpose and project: Dioxovanadium(V)(N-(salicylideneaminato)-N’-(2-hydroxyethyl)-1,2-ethanediamine) [VO2(HSHED)] primarily forms dimers in the solid state. There are 26 related structures in the Cambridge Crystal Database, almost all of which are dimers in the solid state. We have previously synthesized a 3-tert-Butyl analogue that formed a monomer in the solid state. We are interested in whether substitution patterns, either through steric or electronic effects, can modify this preference. Approach: We will synthesize complexes to expand upon our library of compounds and examine trends in the solid state. The complexes will be chosen with substituents in the 3 and/or 5 position on the aromatic ring. We are therefore interested in adding some electron withdrawing and sterically bulky groups and examining their effect on dimerization. We propose to synthesize 3-nitro, 3,5-adamantyl, and 3,5-iodo analogues and determine whether these substitutions influence dimerization and compare these to complexes we have already synthesized.