Alkali Metal-Directed Assembly and Structural Characterization of Layered Uranyl Tetrakisphosphonates

Pius O. Adelani; Jennifer E.S. Szymanowski; Cale B. Gaster; Carmen E. Chamberlain

doi:10.1021/acs.cgd.5c00903

Alkali Metal-Directed Assembly and Structural Characterization of Layered Uranyl Tetrakisphosphonates

Pius O. Adelani
, Jennifer E.S. Szymanowski
, Cale B. Gaster
, Carmen E. Chamberlain

Research output: Contribution to journal › Article › peer-review

Abstract

Two uranyl-organic hybrid compounds were self-assembled from the reaction of uranyl cations with 1,4-phenylenebis(methylidyne)tetrakis(phosphonic acid) in the presence of alkali metal cations (Rb⁺and Cs⁺): Rb_0.40{(UO₂)₂[(H_0.90O₃P)₂CH–C₆H₄–CH(PO₃H_0.90)₂](H₂O)₂} (1) and [Cs_0.33(H₂O)₂]₂{(UO₂)₂[(H_0.67O₃P)(HO₃P)CH–C₆H₄–CH(PO₃H)(PO₃H_0.67)](H₂O)₂} (2). Compound 1 consists of chains of UO₇pentagonal bipyramids linked by the tetrakisphosphonate moieties into two-dimensional layered networks. In compound 2, the –CH(PO₃)₂groups chelate the uranyl centers in an exclusively bidentate mode, forming corrugated chains within a uranyl-tetrakisphosphonate framework. In both structures, the uranyl tetrakisphosphonate sheets are stabilized by weak intermolecular forces and noncovalent interactions involving water molecules and alkali metal ions.

Original language	English
Pages (from-to)	8108-8114
Number of pages	7
Journal	Crystal Growth and Design
Volume	25
Issue number	19
DOIs	https://doi.org/10.1021/acs.cgd.5c00903
State	Published - Oct 1 2025
Externally published	Yes

Funding

This research was supported by the Internal Faculty Research Grant (FY 2023-2024) through the Office of Sponsored Projects, Academic Research and Compliance (SPARC), St. Mary’s University, San Antonio. The authors sincerely thank Prof. Peter C. Burns for his generous support and for allowing the use of his research facilities at the University of Notre Dame during the course of this study.

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title = "Alkali Metal-Directed Assembly and Structural Characterization of Layered Uranyl Tetrakisphosphonates",

abstract = "Two uranyl-organic hybrid compounds were self-assembled from the reaction of uranyl cations with 1,4-phenylenebis(methylidyne)tetrakis(phosphonic acid) in the presence of alkali metal cations (Rb+and Cs+): Rb0.40\{(UO2)2[(H0.90O3P)2CH–C6H4–CH(PO3H0.90)2](H2O)2\} (1) and [Cs0.33(H2O)2]2\{(UO2)2[(H0.67O3P)(HO3P)CH–C6H4–CH(PO3H)(PO3H0.67)](H2O)2\} (2). Compound 1 consists of chains of UO7pentagonal bipyramids linked by the tetrakisphosphonate moieties into two-dimensional layered networks. In compound 2, the –CH(PO3)2groups chelate the uranyl centers in an exclusively bidentate mode, forming corrugated chains within a uranyl-tetrakisphosphonate framework. In both structures, the uranyl tetrakisphosphonate sheets are stabilized by weak intermolecular forces and noncovalent interactions involving water molecules and alkali metal ions.",

author = "Adelani, \{Pius O.\} and Szymanowski, \{Jennifer E.S.\} and Gaster, \{Cale B.\} and Chamberlain, \{Carmen E.\}",

note = "Publisher Copyright: {\textcopyright} 2025 American Chemical Society",

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doi = "10.1021/acs.cgd.5c00903",

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T1 - Alkali Metal-Directed Assembly and Structural Characterization of Layered Uranyl Tetrakisphosphonates

AU - Adelani, Pius O.

AU - Szymanowski, Jennifer E.S.

AU - Gaster, Cale B.

AU - Chamberlain, Carmen E.

PY - 2025/10/1

Y1 - 2025/10/1

N2 - Two uranyl-organic hybrid compounds were self-assembled from the reaction of uranyl cations with 1,4-phenylenebis(methylidyne)tetrakis(phosphonic acid) in the presence of alkali metal cations (Rb+and Cs+): Rb0.40{(UO2)2[(H0.90O3P)2CH–C6H4–CH(PO3H0.90)2](H2O)2} (1) and [Cs0.33(H2O)2]2{(UO2)2[(H0.67O3P)(HO3P)CH–C6H4–CH(PO3H)(PO3H0.67)](H2O)2} (2). Compound 1 consists of chains of UO7pentagonal bipyramids linked by the tetrakisphosphonate moieties into two-dimensional layered networks. In compound 2, the –CH(PO3)2groups chelate the uranyl centers in an exclusively bidentate mode, forming corrugated chains within a uranyl-tetrakisphosphonate framework. In both structures, the uranyl tetrakisphosphonate sheets are stabilized by weak intermolecular forces and noncovalent interactions involving water molecules and alkali metal ions.

AB - Two uranyl-organic hybrid compounds were self-assembled from the reaction of uranyl cations with 1,4-phenylenebis(methylidyne)tetrakis(phosphonic acid) in the presence of alkali metal cations (Rb+and Cs+): Rb0.40{(UO2)2[(H0.90O3P)2CH–C6H4–CH(PO3H0.90)2](H2O)2} (1) and [Cs0.33(H2O)2]2{(UO2)2[(H0.67O3P)(HO3P)CH–C6H4–CH(PO3H)(PO3H0.67)](H2O)2} (2). Compound 1 consists of chains of UO7pentagonal bipyramids linked by the tetrakisphosphonate moieties into two-dimensional layered networks. In compound 2, the –CH(PO3)2groups chelate the uranyl centers in an exclusively bidentate mode, forming corrugated chains within a uranyl-tetrakisphosphonate framework. In both structures, the uranyl tetrakisphosphonate sheets are stabilized by weak intermolecular forces and noncovalent interactions involving water molecules and alkali metal ions.

UR - https://www.scopus.com/pages/publications/105017604556

U2 - 10.1021/acs.cgd.5c00903

DO - 10.1021/acs.cgd.5c00903

M3 - Article

AN - SCOPUS:105017604556

SN - 1528-7483

VL - 25

SP - 8108

EP - 8114

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 19

ER -

Alkali Metal-Directed Assembly and Structural Characterization of Layered Uranyl Tetrakisphosphonates

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