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Investigation of Praseodymium Fluorides: A Combined Matrix-Isolation and Quantum-Chemical Study

Investigation of Praseodymium Fluorides: A Combined Matrix-Isolation and Quantum-Chemical Study

Thomas Vent-Schmidt, Sebastian Riedel

Inorg Chem. 2015 Dec 7;54(23):11114-20.

PMID: 26544761

Abstract:

The chemistry of the lanthanides is mostly dominated by compounds in the oxidation state +III. Only few compounds of Ce, Pr, and Tb are known with the metal in the +IV oxidation state. Removal of the last f-electron on praseodymium +IV would lead to a closed-shell system with formal oxidation state V. In this work we investigated the stability of the PrF5 molecule by theory and matrix-isolation techniques through the reaction of laser-ablated praseodymium atoms with fluorine in excess of neon, argon, krypton, or neat fluorine. Besides the known PrF3 molecule, unreported IR bands for PrF4 could be observed, and there is evidence for the formation of PrF and PrF2 but not for the formation of PrF5.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12037295	Praseodymium(III,IV) oxide		12037-29-5	Price

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