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Related Experiment Video

Updated: Jan 19, 2026

Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method

Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method

Published on: May 15, 2021

The Crystalline Sponge Method in Water.

Wester de Poel¹, Paul Tinnemans¹, Alexander L L Duchateau²

¹Radboud University, Institute for Molecules and Materials, Heyendaalseweg 135, Nijmegen, 6525, AJ, The Netherlands.

Chemistry (Weinheim an Der Bergstrasse, Germany)

|September 19, 2019

Summary

New crystalline sponges using f-block metals enhance molecular structure determination. These stable host crystals expand the crystalline sponge method

Keywords:

absorption crystalline sponge method lanthanides metal-organic frameworks structure elucidation

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Last Updated: Jan 19, 2026

Estimation of Crystalline Cellulose Content of Plant Biomass using the Updegraff Method

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Published on: May 15, 2021

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Published on: September 29, 2020

Microfluidic Preparation of Liquid Crystalline Elastomer Actuators

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Published on: May 20, 2018

Area of Science:

Supramolecular Chemistry
Crystal Engineering
X-ray Crystallography

Background:

The crystalline sponge method determines molecular structures from solution using single-crystal X-ray diffraction.
A key limitation is the instability of current host crystals in various solvents and with certain guest molecules.

Purpose of the Study:

To develop novel, solvent- and guest-tolerant crystalline sponges.
To expand the applicability of the crystalline sponge method, particularly in aqueous environments.

Main Methods:

Synthesis of new host crystals based on f-block metals.
Application of these novel hosts in the crystalline sponge method for structure elucidation.
Testing host stability in protic, nucleophilic solvents and with Lewis basic guests.

Main Results:

A new class of f-block metal-based host crystals was successfully synthesized.
These hosts exhibit enhanced stability in a wider range of solvents and with diverse guest molecules.
The method was successfully applied to aqueous solutions, enabling the study of hydrophilic guest molecules.

Conclusions:

The developed f-block metal-based crystalline sponges overcome the limitations of previous hosts.
This advancement significantly broadens the scope of the crystalline sponge method, enabling its use in water-based chemistry.
This opens new avenues for molecular structure determination in challenging chemical environments.