Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions

Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions

Bibliographic Details
Main Author: Yidan, Shen
Language:English
Published: University of Akron / OhioLINK 2018
Subjects:
Polymers
Isotope effect
hydrogen bond
self-assembly
macroions
Online Access:http://rave.ohiolink.edu/etdc/view?acc_num=akron1522256710854143
id ndltd-OhioLink-oai-etd.ohiolink.edu-akron1522256710854143
record_format oai_dc
spelling ndltd-OhioLink-oai-etd.ohiolink.edu-akron15222567108541432021-08-03T07:05:31Z Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions Yidan, Shen Polymers Isotope effect hydrogen bond self-assembly macroions Macroions are nanoscale ions which have a unique solution behavior that can self-assembly into 3D, single layer, hollow spherical, vesical-like structure called “blackberry” structure. There is a critical problem that how the like-charged macroions could stay together to form the beautiful structure. Studying the self-assembly process by regulating the dielectric constant of solvent and the charge density of polyoxometalates (POMs), the major driving force of the self-assembly process is the counterion mediate attraction. Similarly, the nano-sized metal-organic nanocages also have the same self-assembly behaviors. Moreover, the self-recognition was found during blackberry formation process of two mixed POMs with different charge densities. It is intriguing that the solution properties are of great importance on the behaviors of macroions. The solvent isotopic effect may also have great effect on the self-assembly process. Herein, we report the disparity in the assembly behavior of macroions induced by isotopic substitution of Protium (H) to Deuterium (D) in solvent molecules. The assembly rate is slower in D2O than H2O due to the stronger D-bond or higher viscosity in D-solvent. Meanwhile, the assembly sizes of different macroions have different trend. For strong electrolyte such as {SrPd12} and {U60} with alkali metal ions as counterions, they have been demonstrated similar assembly sizes in both solvents; while the weak acid type POMs {Mo72Fe30} shows unusually larger assembly size in H2O, which comes from the higher degree of deprotonation in H2O strengthening the hydrogen bond to provide extra attraction between macroions. 2018-06-08 English text University of Akron / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=akron1522256710854143 http://rave.ohiolink.edu/etdc/view?acc_num=akron1522256710854143 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection NDLTD
language English
sources NDLTD
topic Polymers
Isotope effect
hydrogen bond
self-assembly
macroions
spellingShingle Polymers
Isotope effect
hydrogen bond
self-assembly
macroions
Yidan, Shen
Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions
author Yidan, Shen
author_facet Yidan, Shen
author_sort Yidan, Shen
title Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions
title_short Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions
title_full Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions
title_fullStr Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions
title_full_unstemmed Solvent Isotope Effect and Hydrogen Bond Effect on The Self-assembly Process of Macroions
title_sort solvent isotope effect and hydrogen bond effect on the self-assembly process of macroions
publisher University of Akron / OhioLINK
publishDate 2018
url http://rave.ohiolink.edu/etdc/view?acc_num=akron1522256710854143
work_keys_str_mv AT yidanshen solventisotopeeffectandhydrogenbondeffectontheselfassemblyprocessofmacroions
_version_ 1719453267426017280

Similar Items