Home
Resources
Publications
Uptake and Accommodation of Water Clusters by Adamantane Clusters in Helium Droplets: Interplay Between Magic Number Clusters

Uptake and Accommodation of Water Clusters by Adamantane Clusters in Helium Droplets: Interplay Between Magic Number Clusters

Lorenz Kranabetter, Paul Martini, Norbert Gitzl, Martin Kuhn, Fatima Saleem, Bilal Rasul, Masoomeh Mahmoodi Darian, Elias Jabbour Al Maalouf, Ivan Sukuba, Alexander Kaiser, Marcelo Goulart, Diethard K Böhme, etc.

Phys Chem Chem Phys. 2018 Aug 22;20(33):21573-21579.

PMID: 30095137

Abstract:

We report an experimental study of water clusters as guests in interactions with clusters of adamantane (Ad) as hosts that occur in doped helium droplets at extremely low temperatures. Separate experiments with pure water as dopant showed ready formation of a distribution of water clusters (H2O)mH+ that peaks at m = 11 and extends beyond m = 100 with local maxima at m = 4, 11, 21, 28 and 30 with (H2O)21H+ being the most anomalous and showing the greatest stability with respect to clusters immediately adjacent in water content. When adamantane is also added as a dopant, extensive hydration is seen in the formation of water/adamantane clusters, (H2O)mAdn+; magic number clusters (H2O)21Adn+ are seen for all the adamantane clusters. Other magic numbers for water clusters attached to adamantane, (H2O)mAdn+, are as for pristine protonated water, with m = 28 and m = 30. The icosahedral shell closure of pure adamantane at n = 13 and 19 appears to be preserved with (H2O)21 replacing one adamantane. (H2O)21Ad12+ and (H2O)21Ad18+ stand out in intensity and demonstrate the interplay of magic number water clusters with magic number adamantane clusters, observed perhaps for the first time in gas-phase cluster chemistry. There was no clear evidence for the formation of clathrate hydrates in which adamantane is trapped within structured water.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP804560007	MADN		804560-00-7	Price

As a specialist in analytical chemical Products, Alfa Chemistry offers consumers a wealth of raw materials and a full range of technologies and services.

QUICK LINKS

HEADQUARTERS

Tel:

Fax:

Email: