Journal
MOLECULES
Volume 27, Issue 22, Pages -Publisher
MDPI
DOI: 10.3390/molecules27227663
Keywords
polyoxometalate; hybrid; decaborate; DFT; NMR; hydrogen evolution reaction
Funding
- French National Research Agency, ''Investissements d'Avenir'' program (Labex Charm3at) [ANR-11-LABX-0039]
- Paris Ile-de-France Region-DIM Respore
- mobility program PHC CEDRE (project POMBORON) [42237UG]
- AZM association
- IUF
- Campus France
- CERCA Program of the Generalitat de Catalunya
- ICIQ Foundation
- Spanish Ministerio de Ciencia e Innovacion [PID2020-112806RB-I00]
- Severo Ochoa Excellence Accreditation (MCI/AEI) [CEX2019-000925-S]
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Herein, the synthesis of a new class of compounds associating Keggin and Dawson-type Polyoxometalates (POMs) with a derivative of the anionic decahydro-closo-decaborate cluster [B10H10](2-) through aminopropylsilyl ligand (APTES) acting as both a linker and a spacer is reported. Three new adducts were isolated and characterized, including an unprecedented monofunctionalized SiW10 derivative stabilized through intramolecular H-H dihydrogen contacts. DFT and electrochemical studies revealed the electronic effect of grafting the decaborate cluster on the POM moiety and its impact on the hydrogen evolution reaction (HER) properties.
Herein we report the synthesis of a new class of compounds associating Keggin and Dawson-type Polyoxometalates (POMs) with a derivative of the anionic decahydro-closo-decaborate cluster [B10H10](2-) through aminopropylsilyl ligand (APTES) acting as both a linker and a spacer between the two negatively charged species. Three new adducts were isolated and fully characterized by various NMR techniques and MALDI-TOF mass spectrometry, notably revealing the isolation of an unprecedented monofunctionalized SiW10 derivative stabilized through intramolecular H-H dihydrogen contacts. DFT as well as electrochemical studies allowed studying the electronic effect of grafting the decaborate cluster on the POM moiety and its consequences on the hydrogen evolution reaction (HER) properties.
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