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

被引：4

作者：

Raina, G ^{[1
]}

Kulkarni, GU ^{[1
]}

Rao, CNR ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, Chem & Phys Mat Unit, Bangalore 560064, Karnataka, India

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 372卷 / 1-2期

关键词：

D O I：

10.1016/S0009-2614(03)00375-0

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

New cluster species of the type (HCN)(m)(NH3)(n)H+ with m up to 4 and n up to 7 alongwith (NH3)(n)H+ 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)(4)H+, (HCN)(1)(NH3)(3)H+ and (HCN)(2) (NH3)(3)H+. 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)(n)H+, decreases monotonically with increasing n, for n > 2. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：121 / 127

页数：7

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