Aggregation of a Crown Ether Decorated Zinc-Phthalocyanine by Collision-Induced Desolvation of Electrospray Droplets.

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autorinnen und Autoren: Kellner I, Hahn U, Dürr M, Torres T, Ivanovic-Burmazovic I, Drewello T
Zeitschrift: Journal of Physical Chemistry A
Jahr der Veröffentlichung: 2015
Band: 119
Heftnummer: 46
Seitenbereich: 11454-60
ISSN: 1520-5215
eISSN: 1089-5639


Abstract


The aggregation of phthalocyanines is well-known in solution but has never before been studied in the gas phase. We investigated the tetra-[18]crown-6 ether functionalized zinc-phthalocyanine (ZnPcTetCr, M) with electrospray ionization mass spectrometry (ESI-MS) in the absence of coordinating metal cations. Apart from the molecular ion M(+•), singly and multiply charged aggregates Mn(z(+•)) were observed, bound together by electrostatic interactions, without alkali metal cations inside the crown ethers. Collision-induced dissociation (CID) experiments indicate that these clusters consist of stacked neutral M and radical cations M(+•). After the oxidation of individual molecules at the electrospray needle, the aggregation occurs during desolvation of the charged droplets created in the source. Complete evaporation of the solvent and detection of the aggregates was found to require an additional acceleration of the droplets in the transfer region of the instrument, the resulting collisions with neutral gas assisting the desolvation process.



FAU-Autorinnen und Autoren / FAU-Herausgeberinnen und Herausgeber

Drewello, Thomas Prof. Dr.
Professur für Physikalische Chemie
Dürr, Maximilian
Lehrstuhl für Bioanorganische Chemie
Ivanovic-Burmazovic, Ivana Prof. Dr.
Lehrstuhl für Bioanorganische Chemie
Kellner, Ina Dr.
Professur für Physikalische Chemie


Zitierweisen

APA:
Kellner, I., Hahn, U., Dürr, M., Torres, T., Ivanovic-Burmazovic, I., & Drewello, T. (2015). Aggregation of a Crown Ether Decorated Zinc-Phthalocyanine by Collision-Induced Desolvation of Electrospray Droplets. Journal of Physical Chemistry A, 119(46), 11454-60. https://dx.doi.org/10.1021/acs.jpca.5b08790

MLA:
Kellner, Ina, et al. "Aggregation of a Crown Ether Decorated Zinc-Phthalocyanine by Collision-Induced Desolvation of Electrospray Droplets." Journal of Physical Chemistry A 119.46 (2015): 11454-60.

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Zuletzt aktualisiert 2019-06-08 um 09:07