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Updated: May 18, 2026

Accessing Valuable Ligand Supports for Transition Metals: A Modified, Intermediate Scale Preparation of 1,2,3,4,5-Pentamethylcyclopentadiene
Published on: March 20, 2017
3-Methyl-1,2-BN-cyclopentane: a promising H2 storage material?
Wei Luo1, Doinita Neiner, Abhi Karkamkar
1Department of Chemistry, University of Oregon, Eugene, Oregon 97403-1253, USA.
This study characterizes 3-methyl-1,2-BN-cyclopentane, a liquid carrier for hydrogen storage. It exhibits favorable viscosity, thermal stability, and produces pure hydrogen gas upon desorption.
Area of Science:
- Materials Science
- Chemical Engineering
- Hydrogen Energy
Background:
- Hydrogen storage is critical for clean energy applications.
- Developing efficient and safe hydrogen carriers is an ongoing research area.
Purpose of the Study:
- To characterize the properties of 3-methyl-1,2-BN-cyclopentane (1) for hydrogen storage.
- To evaluate its potential as a liquid hydrogen carrier.
Main Methods:
- Viscosity measurements at room temperature.
- Thermogravimetric analysis coupled with mass spectrometry (TGA/MS).
- Residual Gas Analysis (RGA) for H(2) desorption purity.
- Solvatochromic studies for polarity assessment.
Main Results:
- Compound 1 has a viscosity of 25 ± 5 cP at room temperature.
- It is thermally stable up to 30 °C, with slow decomposition at 50 °C.
- Hydrogen desorption is a clean process, yielding high-purity H(2) gas.
- Compound 1 is a polar, zwitterionic-type liquid.
Conclusions:
- 3-methyl-1,2-BN-cyclopentane shows promise as a liquid carrier for hydrogen storage.
- Its properties align with requirements for efficient and pure hydrogen delivery.
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