Photoionization Study of Fe(CO)5 and Ni(CO)4

Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry
G Distefano

Abstract

Photoionization yield curves from onset to 600Å, and ionization threshold values have been obtained for the ions Fe ( CO ) 5 + , Fe ( CO ) 4 + , Fe ( CO ) 3 + , Fe ( CO ) 2 + , Fe ( CO ) + , Fe+ and CO+ from iron penta-carbonyl, and for Ni ( CO ) 4 + , Ni ( CO ) 3 + , Ni ( CO ) 2 + , Ni ( CO ) + , Ni+, and CO+ from nickel tetracarbonyl. From these curves, information on the ionization-fragmentation processes of Fe(CO)5 and Ni(CO)4 under photon impact, have been obtained. Differences in the threshold energies as determined by photon and by electron impact methods increase with the fragmentation. The appearance potentials and the heats of formation of the metal-ions, agree within 0.1 eV, with those calculated from thermochemical data. The average bond dissociation energy of the neutral molecule agrees within 0.02 eV, with the thermochemical values. The kinetic shift for the formation of Fe+ and Ni+ ions is very small. The Ni ion is most likely formed directly from the molecule ion rather than by a cascade fragmentation process.

Citations

Mar 12, 2004·Annual Review of Physical Chemistry·P E Siegbahn, M R Blomberg
Mar 10, 2016·Chemical Reviews·M T Rodgers, P B Armentrout
Apr 8, 2016·The Journal of Physical Chemistry. a·A MansellD J Bellert
Feb 10, 2017·Langmuir : the ACS Journal of Surfaces and Colloids·Donya FarhanianJason R Tavares
Apr 16, 2020·Journal of Chemical Theory and Computation·Benjamin RudshteynJames Shee
Oct 27, 2021·Inorganic Chemistry·Roberto LinguerriRaimund Feifel

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.