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Early Metal Di(pyridyl) Pyrrolide Complexes with Second Coordination Sphere Arene−π Interactions: Ligand Binding and Ethylene Polymerization

Sampson, Jessica and Choi, Gyeongshin and Akhtar, Muhammed Naseem and Jaseer, E. A. and Theravalappil, Rajesh and Garcia, Nestor and Agapie, Theodor (2019) Early Metal Di(pyridyl) Pyrrolide Complexes with Second Coordination Sphere Arene−π Interactions: Ligand Binding and Ethylene Polymerization. ACS Omega, 4 (14). pp. 15879-15892. ISSN 2470-1343. PMCID PMC6776977. https://resolver.caltech.edu/CaltechAUTHORS:20190919-113941856

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Abstract

Early metal complexes supported by hemilabile, monoanionic di(pyridyl) pyrrolide ligands substituted with mesityl and anthracenyl groups were synthesized to probe the possibility of second coordination sphere arene−π interactions with ligands with potential for allosteric control in coordination chemistry, substrate activation, and olefin polymerization. Yttrium alkyl, indolide, and amide complexes were prepared and structurally characterized; close contacts between the anthracenyl substituents and Y-bound ligands are observed in the solid state. Titanium, zirconium, and hafnium tris(dimethylamido) complexes were synthesized, and their ethylene polymerization activity was tested. In the solid state structure of one of the Ti tris(dimethylamido) complexes, coordination of Ti to only one of the pyridine donors is observed pointing to the hemilabile character of the di(pyridyl) pyrrolide ligands.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1021/acsomega.9b01788DOIArticle
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6776977PubMed CentralArticle
ORCID:
AuthorORCID
Theravalappil, Rajesh0000-0002-6022-6461
Agapie, Theodor0000-0002-9692-7614
Additional Information:© 2019 American Chemical Society. This is an open access article published under an ACS AuthorChoice License, which permits copying and redistribution of the article or any adaptations for non-commercial purposes. Received 19 June 2019. Accepted 27 August 2019. Published online 19 September 2019. Mike Takase and Larry Henling are acknowledged for crystallographic assistance. The authors are grateful for the support provided by King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, offered under the KFUPM-Caltech Research Collaboration. The authors declare no competing financial interest.
Funders:
Funding AgencyGrant Number
King Fahd University of Petroleum and Minerals (KFUPM)UNSPECIFIED
CaltechUNSPECIFIED
Issue or Number:14
PubMed Central ID:PMC6776977
Record Number:CaltechAUTHORS:20190919-113941856
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20190919-113941856
Official Citation:Early Metal Di(pyridyl) Pyrrolide Complexes with Second Coordination Sphere Arene−π Interactions: Ligand Binding and Ethylene Polymerization. Jessica Sampson, Gyeongshin Choi, Muhammed Naseem Akhtar, E.A. Jaseer, Rajesh Theravalappil, Nestor Garcia, and Theodor Agapie. ACS Omega 2019 4 (14), 15879-15892 DOI: 10.1021/acsomega.9b01788
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:98748
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:20 Sep 2019 14:40
Last Modified:09 Oct 2019 14:44

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