Cavity-size-dependent dissociation of crown ether/ammonium ion complexes in the gas phase

Abstract. A coupled box model of photochemistry and aerosol microphysics which explicitly accounts for size-dependent chemical properties of the condensed-phase has been developed to simulate the multi-phase chemistry of chlorine, bromine and iodine in the marine boundary layer (MBL). The model contains separate seasalt and non-seasalt modes, each of which may be composed of 1–16 size-sections. By comparison of gaseous and aerosol compositions predicted using different size-resolutions with both fixed and size-dependent aerosol turnover rates, it was found that, for halogen-activation processes, the physical property initialisation of the aerosol-mode has a significant influence on gas-phase chemistry. Failure to adequately represent the appropriate physical properties can lead to substantial errors in gas-phase chemistry. The size-resolution of condensed-phase composition has a less significant influence on gas-phase chemistry.

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Size-Dependent Hydrogen Atom Attachment to Gas-Phase Hydrogen-Deficient Polypeptide Radical Cations

Journal of the American Chemical Society ◽

10.1021/jacs.7b10318 ◽

2018 ◽

Vol 140 (2) ◽

pp. 531-533 ◽

Cited By ~ 2

Author(s):

Luciano H. Di Stefano ◽

Dimitris Papanastasiou ◽

Roman A. Zubarev

Keyword(s):

Hydrogen Atom ◽

Gas Phase ◽

Radical Cations ◽

Size Dependent

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Reactions of multidentate ligands with ligated alkali cation complexes: self-exchange and “sandwich” complex formation kinetics of gas phase crown ether–alkali cation complexes

International Journal of Mass Spectrometry ◽

10.1016/s1387-3806(00)00329-8 ◽

2001 ◽

Vol 204 (1-3) ◽

pp. 171-183 ◽

Cited By ~ 27

Author(s):

Jeremy B Nicoll ◽

David V Dearden

Keyword(s):

Complex Formation ◽

Crown Ether ◽

Gas Phase ◽

Alkali Cation ◽

Multidentate Ligands ◽

Sandwich Complex ◽

Formation Kinetics ◽

Kinetics Of ◽

Cation Complexes

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Self-assembly of daisy chain oligomers from heteroditopic molecules containing secondary ammonium ion and crown ether moieties

Journal of Polymer Science Part A Polymer Chemistry ◽

10.1002/pola.23861 ◽

2010 ◽

Vol 48 (4) ◽

pp. 975-985 ◽

Cited By ~ 54

Author(s):

Harry W. Gibson ◽

Nori Yamaguchi ◽

Zhenbin Niu ◽

Jason W. Jones ◽

Carla Slebodnick ◽

...

Keyword(s):

Crown Ether ◽

Self Assembly ◽

Ammonium Ion

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Host-guest complexation of imine-type meta-bridged bis(benzo crown ether)s with alkali cations in the gas phase under fast atom bombardment conditions

Rapid Communications in Mass Spectrometry ◽

10.1002/(sici)1097-0231(19980815)12:15<1021::aid-rcm270>3.0.co;2-i ◽

1998 ◽

Vol 12 (15) ◽

pp. 1021-1027 ◽

Cited By ~ 6

Author(s):

K. B. Reiche ◽

I. Starke ◽

E. Kleinpeter ◽

H. -J. Holdt

Keyword(s):

Crown Ether ◽

Gas Phase ◽

Fast Atom Bombardment ◽

Alkali Cations

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Discrete multiporphyrin pseudorotaxane assemblies from di- and tetravalent porphyrin building blocks

Beilstein Journal of Organic Chemistry ◽

10.3762/bjoc.11.85 ◽

2015 ◽

Vol 11 ◽

pp. 748-762 ◽

Cited By ~ 3

Author(s):

Mirko Lohse ◽

Larissa K S von Krbek ◽

Sebastian Radunz ◽

Suresh Moorthy ◽

Christoph A Schalley ◽

...

Keyword(s):

Gas Phase ◽

Self Assembly ◽

Building Blocks ◽

Ammonium Ion ◽

Ion Binding ◽

Binding Motif ◽

Functional Nanostructures ◽

Alternative Structures ◽

Binding Stoichiometry ◽

Esi Mass Spectrometry

Two pairs of divalent and tetravalent porphyrin building blocks carrying the complementary supramolecular crown ether/secondary ammonium ion binding motif have been synthesized and their derived pseudorotaxanes have been studied by a combination of NMR spectroscopy in solution and ESI mass spectrometry in the gas phase. By simple mixing of the components the formation of discrete dimeric and trimeric (metallo)porphyrin complexes predominates, in accordance to binding stoichiometry, while the amount of alternative structures can be neglected. Our results illustrate the power of multivalency to program the multicomponent self-assembly of specific entities into discrete functional nanostructures.

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