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酮取代三儿茶酚钛（IV）配合物单体 - 二聚体平衡的溶剂依赖性

Solvent Dependence of the Monomer-Dimer Equilibrium of Ketone-Substituted Triscatecholate Titanium(IV) Complexes.

作者信息

Kwamen A Carel N, Jenniches Judith, Oppel Iris M, Albrecht Markus

机构信息

Institut für Organische Chemie, RWTH Aachen University, Landoltweg 1, Aachen, 52074, Germany.

Institut für Anorganische Chemie, RWTH Aachen University, Landoltweg 1, Aachen, 52074, Germany.

出版信息

Chemistry. 2020 Aug 17;26(46):10550-10554. doi: 10.1002/chem.202001053. Epub 2020 Jul 20.

DOI:10.1002/chem.202001053
PMID:32222003
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7496165/
Abstract

Hierarchical helicates based on ketone-substituted titanium(IV)triscatecholates show different monomer-dimer behavior depending on different solvents. The dimerization constants of a whole series of differently alkyl-substituted complexes is analyzed to show that the solvent has a very strong influence on the dimerization. Hereby, effects like solvophobicity/philicity, sterics, electronics of the substituents and weak side-chain-side-chain interactions seem to act in concert.

摘要

基于酮取代的三儿茶酚钛（IV）的分级螺旋配合物在不同溶剂中表现出不同的单体-二聚体行为。分析了一系列不同烷基取代配合物的二聚常数，结果表明溶剂对二聚作用有非常强烈的影响。因此，诸如疏溶剂性/亲溶剂性、空间位阻、取代基的电子效应以及弱的侧链-侧链相互作用等因素似乎共同起作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/14cd28ffceee/CHEM-26-10550-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/2c8d9c8c4ced/CHEM-26-10550-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/e9f9a56f3778/CHEM-26-10550-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/368a870b393c/CHEM-26-10550-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/c6e2845ac743/CHEM-26-10550-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/678e907a4702/CHEM-26-10550-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/2b073835f4bc/CHEM-26-10550-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/483aa9a1c6dc/CHEM-26-10550-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/14cd28ffceee/CHEM-26-10550-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/2c8d9c8c4ced/CHEM-26-10550-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/e9f9a56f3778/CHEM-26-10550-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/368a870b393c/CHEM-26-10550-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/c6e2845ac743/CHEM-26-10550-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/678e907a4702/CHEM-26-10550-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/2b073835f4bc/CHEM-26-10550-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/483aa9a1c6dc/CHEM-26-10550-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/c71a/7496165/14cd28ffceee/CHEM-26-10550-g005.jpg

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Shedding Light on the Interactions of Hydrocarbon Ester Substituents upon Formation of Dimeric Titanium(IV) Triscatecholates in DMSO Solution.
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