Secondary organic aerosol from limona ketone:: insights into terpene ozonolysis via synthesis of key intermediates

被引：38

作者：

Donahue, Neil M. ^{[1
]}

Tischuk, Joshua E. ^{[1
]}

Marquis, Bryce J. ^{[1
]}

Huff Hartz, Kara E. ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Ctr Atmospher Particle Studies, Pittsburgh, PA 15213 USA

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2007年 / 9卷 / 23期

关键词：

D O I：

10.1039/b701333g

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：

Limona ketone was synthesized to explore the secondary organic aerosol (SOA) formation mechanism from limonene ozonolysis and also to test group-additivity concepts describing the volatility distribution of ozonolysis products from similar precursors. Limona ketone SOA production is indistinguishable from alpha-pinene, confirming the expected similarity. However, limona ketone SOA production is significantly less intense than limonene SOA production. The very low vapor pressure of limonene ozonolysis products is consistent with full oxidation of both double bonds in limonene and furthermore with production of products other than ketones after oxidation of the exo double bond in limonene. Mass-balance constraints confirm that ketone products from exo double-bond ozonolysis have a minimal contribution to the ultimate product yield. These results serve as the foundation for an emerging framework to describe the effect on volatility of successive generations of organic compounds in the atmosphere.

引用

页码：2991 / 2998

页数：8

共 45 条

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