(HCN)m(NH3)nH+ clusters formed by the reaction of carbon vapor with jet-cooled ammonia

Raina, G. ; Kulkarni, G. U. ; Rao, C. N. R. (2003) (HCN)m(NH3)nH+ clusters formed by the reaction of carbon vapor with jet-cooled ammonia Chemical Physics Letters, 372 (1-2). pp. 121-127. ISSN 0009-2614

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00092...

Related URL: http://dx.doi.org/10.1016/S0009-2614(03)00375-0

Abstract

New cluster species of the type (HCN)m(NH3)nH+ with m up to 4 and n up to 7 alongwith (NH3)nH+ species are observed using mass spectrometry, on the reaction of carbon vapor with jet-cooled NH3 in admixture with helium. The most preponderant species correspond to m=1 and 2, viz. (HCN)1(NH3)4H+, (HCN)1(NH3)3H+ and (HCN)2(NH3)3H+. These clusters involving the tetrahedral coordination in the first solvation shell of the NH4+ ion are the most stable species, as corroborated by molecular-orbital calculations. The incremental complexation energy due to successive addition of the NH3 molecule to (HCN)(NH3)nH+, decreases monotonically with increasing n, for n>2.

Item Type:Article
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Deposited On:02 Jun 2011 10:02
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