Ion formation pathways of crown ether-fullerene conjugates in the gas phase

Kellner I, Nye LC, von Gernler M, Li J, Tzirakis MD, Orfanopoulos M, Drewello T (2014)

Publication Type: Journal article

Publication year: 2014

Journal

Physical Chemistry Chemical Physics Royal Society of Chemistry

Book Volume: 16

Pages Range: 18982-18992

Journal Issue: 35

DOI: 10.1039/c4cp02374a

Abstract

The ion formation of crown ether-[60]fullerene conjugates of the type (crown - H)-C60-H with crown = 12cr4, 15cr5 and 18cr6 has been studied with matrix-assisted laser desorption/ionisation (MALDI) and electrospray ionisation mass spectrometry (ESI MS). In total five different ways of ion formation are presented, including metalation (MALDI, ESI), protonation and oxidation (both in MALDI) in the positive-ion mode and deprotonation (MALDI, ESI) and reduction (MALDI) in the negative-ion mode. In line with thermochemistry, the deprotonation and electron transfer processes involve the C60 moiety as the charge-carrying entity, while protonation and metalation occur at the crown ether. Particular emphasis has been placed on the study of metal cation attachment in MALDI varying the crown ether size in the conjugate and using different alkali metal chlorides in the target preparation. Dissociation reactions of the metalated conjugates are influenced by the interaction strength of the metal cation to the crown ether fullerene conjugate. The data confirm an increase in bond strength with smaller metal cations, supporting the notion of charge density-driven interactions. © the Partner Organisations 2014.

Authors with CRIS profile

Ina Kellner Lehrstuhl für Physikalische Chemie I Marc von Gernler Sonderforschungsbereich 953/3 Synthetische Kohlenstoffallotrope Jing Li Professur für Physikalische Chemie Thomas Drewello Professur für Physikalische Chemie

Involved external institutions

University of Crete / Πανεπιστήμιο Κρήτης GR Greece (GR)

How to cite

APA:

Kellner, I., Nye, L.C., von Gernler, M., Li, J., Tzirakis, M.D., Orfanopoulos, M., & Drewello, T. (2014). Ion formation pathways of crown ether-fullerene conjugates in the gas phase. Physical Chemistry Chemical Physics, 16(35), 18982-18992. https://dx.doi.org/10.1039/c4cp02374a

MLA:

Kellner, Ina, et al. "Ion formation pathways of crown ether-fullerene conjugates in the gas phase." Physical Chemistry Chemical Physics 16.35 (2014): 18982-18992.

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