Degree Type
Honors Capstone Project
Date of Submission
Spring 5-1-2010
Capstone Advisor
Dr. Karin Ruhlandt-Senge
Honors Reader
Dr. Michael Sponsler
Capstone Major
Biology
Capstone College
Arts and Science
Audio/Visual Component
no
Capstone Prize Winner
no
Won Capstone Funding
yes
Honors Categories
Sciences and Engineering
Subject Categories
Biochemistry | Biochemistry, Biophysics, and Structural Biology
Abstract
We here attempt to synthesize heterobimetallic alkali metal complexes with bulky phenolate ligands via solid state direct metallation. The solid state route may offer a facile method of producing these heterobimetallic species. Synthesis of heterobimetallic alkali metal compounds remains a challenge, as the homometallic complexes are generally favored over formation of the heterobimetallic species. Previous work has shown that the alkali metals have a strong solvent dependency; the recrystallization of heterobimetallic products from toluene yields the heterobimetallic, while recrystallization from THF yields the homometallic. However, the ability for phenolate ligands to stabilize metal centers through secondary interactions, such as M∙∙∙π interactions, has also been observed to compete with solvents in saturating the coordination spheres of the metals.
A novel group of potassium-containing 1-D coordination polymers demonstrates the importance and role of K-Cp interactions. [K(Odpp)]∞, 1,(Odpp = 2,6-diphenylphenolate) forms a ladder-type polymer where extensive K-Cp interactions provide additional coordinative saturation. {[K2(Odpp)2H2O]2}∞, 2, consists of tetrameric cores of K4O6 polyhedra linked via a network of K-Cp interactions. Compound 2 displays not only inter- and intramolecular K-Cp contacts, but also several K-H agostic interactions that provide further coordinative saturation.
Recommended Citation
Nagle, Elizabeth D., "Role of Secondary Interactions (π, agostic) as well as Solvent Influence on Alkali metal complexes" (2010). Honors Capstone Projects - All. 352.
https://surface.syr.edu/honors_capstone/352
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