Trapping ions at high temperatures: thermal decay of C60 +

Gerlich, D.; Decker, Savannah M.

doi:10.1007/s00340-013-5668-y

Cited by 21 publications

(20 citation statements)

References 26 publications

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“…C 60 + ions were heated with a CO 2 laser reaching stationary high temperatures in the range of 2000 K. The temperature was determined by blackbody radiation. This setup allowed the authors to measure decay rates below 1/min …”

Section: Developments Of Radiofrequency Ion Trapsmentioning

confidence: 99%

“…This setup allowed the authors to measure decay rates below 1/min. 15 The detection scheme used by Paul et al was based on image currents and therefore pioneered this nondestructive method of detection. A different approach which is nowadays more common for commercially available ion traps detects the ions directly.…”

Section: Developments Of Radiofrequency Ion Trapsmentioning

confidence: 99%

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Ion traps in modern mass spectrometry

Nolting

Malek

Makarov

2017

Mass Spectrometry Reviews

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This review is devoted to trapping mass spectrometry wherein ions are confined by electromagnetic fields for prolonged periods of time within limited volume, with mass measurement taking place within the same volume. Three major types of trapping mass spectrometers are discussed, specifically radiofrequency ion trap, Fourier transform ion cyclotron resonance and Orbitrap. While these three branches are intricately interwoven with each other over their recent history, they also differ greatly in their fundamentals, roots and historical origin. This diversity is reflected also in the difference of viewpoints from which each of these directions is addressed in this review. Following the theme of the issue, we focus on developments mainly associated with the country of Germany but, at the same time, we use this review as an illustration of the rapidly increasing globalization of science and expanding multi-national collaborations.

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Section: Developments Of Radiofrequency Ion Trapsmentioning

confidence: 99%

Section: Developments Of Radiofrequency Ion Trapsmentioning

confidence: 99%

Ion traps in modern mass spectrometry

Nolting

Malek

Makarov

2017

Mass Spectrometry Reviews

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“…There are many more applications of ion traps possible if one goes in the opposite direction, to high temperatures. A first example has been to monitor the decay of hot C 60 + ions via their black body radiation …”

Section: Discussionmentioning

confidence: 99%

“…In the last decade, I had the privilege to participate actively in experiments in Köln, in Basel, and especially in Prague . It is not the aim of this review to describe all the technical improvements that were necessary to tune the performance of special ion traps for dedicated aims, such as for low‐temperature ion chemistry or for monitoring the radiation from 2,000 K hot C 60 + . In the following section, some selected hints are provided to optimize a trapping instrument for ion spectroscopy based on He tagging or to hinder He tagging with selected excitation.…”

Section: Selected Technical Hints To Cryogenic Ion Trapsmentioning

confidence: 99%

Infrared spectroscopy of cold trapped molecular ions using He‐tagging

Gerlich

2018

J Chinese Chemical Soc

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This review summarizes experimental activities to study the structure of molecular ions via He tagging. The method is based on the attachment of a weakly bound helium atom to a cold ion followed by laser-induced predissociation (LIP). Since my early involvements (it started in 1977 with a letter from Y.T. Lee), radio frequency (rf ) ion traps and ion guides have been important elements in instruments dedicated to ion spectroscopy. Accumulating ions in a ring electrode trap (RET) and confining them together with the laser-induced photofragments in a long octopole has been demonstrated in 1978 in Berkeley via photodissociation of metastable O 2 + ions. In the early stage of this instrument, as well as in various further developments, supersonic expansions have been used to create weakly bound complexes. An important step forward for ion spectroscopy was to push the conditions of cryogenic ion traps so far that, finally, He atoms could be attached to almost any mass-selected ion of interest, including multiply charged ions and C 60 + . Currently, modern ion storage instruments reach temperatures below 3 K and can be operated at helium densities above 10 16 cm −3 , opening up many avenues of application in spectroscopy, reaction dynamics, and analytical chemistry. In addition to a personal historical review, I discuss recent progress made with new cryogenic ion traps, especially in the field of He tagging. He-M + ions have been formed via ternary association for all kind of M + ions ranging from atoms such as He + , N + , or Fe + via molecules N 2 + , VO + , and H 3 + to various polyatomic ions. The in situ synthesis of tagged ions made unique discoveries possible, such as determining the structure of doubly charged benzene, the first identification of a carrier of diffuse interstellar bands, or the characterization of the fundamental 4 electron 4 center system He-H 3 + . In the conclusions, hints to additional applications will be given, emphasizing on the versatility of temperature-variable ion traps. K E Y W O R D Scryogenic ion traps, He tagging, ion spectroscopy, linear multipoles, LIP and LIICG

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“…We have recently developed an instrument to measure single nanoparticle action spectra at cryogenic temperatures (cryo-SNAS). To this end, we have combined a split ring-electrode trap (SRET), a Paul-type ion trap for nondestructive NP mass monitoring, with a closed-cycle He-cryostat for the controlled adsorption of gases, N 2 in the present case, at a NP’s surface . These inert adsorbates function as messengers for photoabsorption in cryo-SNAS, similar to gas-phase infrared vibrational predissociation spectroscopy. , In more detail, photoabsorption leads to an increase of the NPs internal energy.…”

mentioning

confidence: 99%

Electronic Action Spectroscopy on Single Nanoparticles in the Gas Phase

Hoffmann

Esser

Abel

et al. 2020

J. Phys. Chem. Lett.

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We present electronic excitation spectra of individual nanoparticles (NPs) in the gas phase obtained by messenger-mediated single nanoparticle action spectroscopy at cryogenic temperatures (cryo-SNAS). Single ∼100 nm diameter SiO 2 NPs, either colorless or dye-loaded, are trapped and coated with multiple layers of N 2 in a temperature-controllable modified quadrupole ion-trap at 100 K. The NP's mass is monitored quasi-continuously and nondestructively by light scattering. Absorption of electromagnetic radiation from a tunable (400−800 nm), quasi-continuous, supercontinuum laser leads to heating of the NP and subsequent evaporation of N 2 molecules. The average change in NP mass as a function of the irradiation wavelength then yields the cryo-SNAS spectrum without further correction. The obtained spectra are similar to direct absorption spectra of the corresponding NP suspensions but reveal narrower bands due to the lower NP temperature. These experiments demonstrate that cryo-SNAS allows the determination of photoabsorption spectra of single, free NPs independently of scattering processes.

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Trapping ions at high temperatures: thermal decay of C60 +

Cited by 21 publications

References 26 publications

Ion traps in modern mass spectrometry

Ion traps in modern mass spectrometry

Infrared spectroscopy of cold trapped molecular ions using He‐tagging

Electronic Action Spectroscopy on Single Nanoparticles in the Gas Phase

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