English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Reactions between pyridine containing water cluster ions, H+(pyridine)1(H2O)n, H+(pyridine)2(H2O)n and H+(NH3)1(pyridine)1(H2O)n (n up to 15) with NH3 have been studied experimentally using a quadrupole time-of-flight mass spectrometer. The product ions in the reaction between H+(pyridine)m(H2O)n (m = 1 to 2) and NH3 have been determined for the first time. It is found that the reaction mainly leads to cluster ions of the form H+(NH3)1(pyridine)m(H2O)n-x, with x = 1 or 2 depending on the initial size of the reacting cluster ion. For a given number of water molecules (from 5 to 15) in the cluster ion, rate coefficients are found to be slightly lower than those for protonated pure water clusters reacting with ammonia. The rate coefficients obtained from this study are used in a kinetic cluster ion model under tropospheric conditions. The disagreement between ambient ground level measurements and previous models are discussed in relation to the results from our model and future experimental directions are suggested

atmospheric chemistry and physics

Reactions of H&amp;lt;sup&amp;gt;+&amp;lt;/sup&amp;gt;(pyridine)&amp;lt;sub&amp;gt;&amp;lt;i&amp;gt;m&amp;lt;/i&amp;gt;&amp;lt;/sub&amp;gt;(H&amp;lt;sub&amp;gt;2&amp;lt;/sub&amp;gt;O)&amp;lt;sub&amp;gt;&amp;lt;i&amp;gt;n&amp;lt;/i&amp;gt;&amp;lt;/sub&amp;gt; and H&amp;lt;sup&amp;gt;+&amp;lt;/sup&amp;gt;(NH&amp;lt;sub&amp;gt;3&amp;lt;/sub&amp;gt;)&amp;lt;sub&amp;gt;1&amp;lt;/sub&amp;gt;(pyridine)&amp;lt;sub&amp;gt;&amp;lt;i&amp;gt;m&amp;lt;/i&amp;gt;&amp;lt;/sub&amp;gt;(H&amp;lt;sub&amp;gt;2&amp…