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Title: Influence of Countercation Hydration Enthalpies on the Formation of Molecular Complexes: A Thorium–Nitrate Example

Journal Article · · Journal of the American Chemical Society

Here, the influence of countercations (An+) in directing the composition of monomeric metal–ligand (ML) complexes that precipitate from solution are often overlooked despite the wide usage of An+ in materials synthesis. Herein, we describe a correlation between the composition of ML complexes and A+ hydration enthalpies found for two related series of thorium (Th)–nitrate molecular compounds obtained by evaporating acidic aqueous Th–nitrate solutions in the presence of A+ counterions. Analyses of their chemical composition and solid-state structures demonstrate that A+ not only affects the overall solid-state packing of the Th–nitrato complexes but also influences the composition of the Th–nitrato monomeric anions themselves. Trends in composition and structure are found to correlate with A+ hydration enthalpies, such that the A+ with smaller hydration enthalpies associate with less hydrated and more anionic Th–nitrato complexes. This perspective, broader than the general assumption of size and charge as the dominant influence of An+, opens a new avenue for the design and synthesis of targeted metal–ligand complexes.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1421980
Journal Information:
Journal of the American Chemical Society, Vol. 139, Issue 49; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (48)

Ligand Substitution Reactions at Inorganic Centers journal June 2005
Cationic Noncovalent Interactions: Energetics and Periodic Trends journal March 2016
Understanding the Role of Aqueous Solution Speciation and Its Application to the Directed Syntheses of Complex Oxidic Zr Chlorides and Sulfates journal September 2013
Anion-Templated Synthesis journal April 2003
Cations in control: crystal engineering polyoxometalate clusters using cation directed self-assembly journal January 2010
Molecular and electronic structure of terminal and alkali metal-capped uranium(V) nitride complexes journal December 2016
Cation-Dependent Hierarchical Assembly of U60 Nanoclusters into Macro-Ion Assemblies Imaged via Cryogenic Transmission Electron Microscopy journal December 2015
Anion-Templated Nanosized Silver Alkynyl Clusters: Cluster Engineering and Solution Behavior journal February 2017
Pressure-Induced Metallization of the Halide Perovskite (CH 3 NH 3 )PbI 3 journal March 2017
Ion Pairing journal November 2006
Effect of Ions on the Structure of Water: Structure Making and Breaking journal March 2009
Cooperativity in Ion Hydration journal May 2010
Thorium coordination: A comprehensive review based on coordination number journal February 2017
Redox and environmentally relevant aspects of actinide(IV) coordination chemistry journal May 2014
Solution and Solid-State Structural Chemistry of Actinide Hydrates and Their Hydrolysis and Condensation Products journal October 2012
Structural aspects of co-ordinated nitrate groups journal January 1971
Actinide nitrate complexes journal May 1981
Structure of bis(tetraethylammonium) hexanitratouranium(IV) journal December 1988
Coordination around thorium(IV) in aqueous perchlorate, chloride and nitrate solutions journal August 1991
Structure of bis(ammonium) hexanitratoplutonium(IV) and bis(ammonium) hexanitratothorium(V) journal July 1992
Characterization of the nitrate complexes of Pu(IV) using absorption spectroscopy, 15N NMR, and EXAFS journal October 1994
Two Polymorphic Forms of Ceric Potassium Nitrate, K2Ce(NO3)6 journal June 1995
Characterization of Aqueous Plutonium(IV) Nitrate Complexes by Extended X-ray Absorption Fine Structure Spectroscopy journal January 1996
Electrochemical and Complexation Behavior of Neptunium in Aqueous Perchlorate and Nitrate Solutions journal September 2008
Nitrate and Perchlorate Complexes of Uranium(IV) journal October 2009
[N( n -Bu) 4 ] 2 [Pu(NO 3 ) 6 ] and [N( n -Bu) 4 ] 2 [PuCl 6 ]: Starting Materials To Facilitate Nonaqueous Plutonium(IV) Chemistry journal August 2012
A thermodynamic model of plutonium (IV) nitrate solutions journal March 2012
Crystal chemistry of thorium nitrates and chromates journal July 2010
Synthesis, thermal analysis, IR spectrum and crystal structure of K2Th2(NO3)10·15H2O. Structural evolution of thorium nitrate complexes journal October 2016
Linking Solution Structures and Energetics: Thorium Nitrate Complexes journal August 2017
The System Thorium Nitrate-Water-Nitric Acid at 25° and the Hydrates of Thorium Nitrate 1 journal February 1954
Salt hydrates. VII. The crystal structures of sodium ammonium orthochromate dihydrate and magnesium diammonium bis(hydrogen orthophosphate) tetrahydrate and a discussion of the ammonium ion journal March 1972
A simple empirical model describing the thermodynamics of hydration of ions of widely varying charges, sizes, and shapes journal August 1994
Extension of Computational Chemistry to the Study of Lanthanide(III) Ions in Aqueous Solution:  Implementation and Validation of a Continuum Solvent Approach journal August 2000
Tetraalkylammonium Ions in Aqueous and Non-aqueous Solutions journal June 2008
Recent Developments in the Methods and Applications of the Bond Valence Model journal December 2009
Oxonium Ions from Aqua Regia:  Isolation by Hydrogen Bonding to Crown Ethers journal September 2001
Aggregation of Heteropolyanions Implicates the Presence of Zundel Ions Near Air-Water Interfaces journal July 2016
Structure and dynamics of hydrated ions journal May 1993
Direct Observation of Contact Ion-Pair Formation in Aqueous Solution journal August 2009
The Crystal Structures of Ammonium, Potassium and Rubidium Cupric Chloride Dihydrates journal September 1927
The Configuration of the Tetrachlorocuprate(Ii) ion journal January 1961
A Study of the Absorption of Light by Solutions of Cupric Lithium Chloride journal April 1922
Interactions between macromolecules and ions: the Hofmeister series journal December 2006
Beyond the Hofmeister Series: Ion-Specific Effects on Proteins and Their Biological Functions journal February 2017
A short history of SHELX journal December 2007
EXPGUI , a graphical user interface for GSAS journal April 2001
GSAS-II : the genesis of a modern open-source all purpose crystallography software package journal March 2013

Cited By (4)

Crystal Structure of Regularly T h -Symmetric [U(NO 3 ) 6 ] 2− Salts with Hydrogen Bond Polymers of Diamide Building Blocks journal December 2018
Crystal Structure of Regularly T h -Symmetric [U(NO 3 ) 6 ] 2− Salts with Hydrogen Bond Polymers of Diamide Building Blocks journal December 2018
Ion association with tetra-n-alkylammonium cations stabilizes higher-oxidation-state neptunium dioxocations journal January 2019
Ion association with tetra-n-alkylammonium cations stabilizes higher-oxidation-state neptunium dioxocations journal January 2019


Figures / Tables (6)


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