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Probing the early stages of solvation of cis-pinate dianions by water, acetonitrile, and methanol: a photoelectron spectroscopy and theoretical study
Hou, Gao-Lei1; Kong, Xiang-Tao2; Valiev, Marat1; Jiang, Ling2; Wang, Xue-Bin1
Source PublicationPHYSICAL CHEMISTRY CHEMICAL PHYSICS
2016-02-07
ISSN1463-9076
DOI10.1039/c5cp05974g
Volume18Issue:5Pages:3628-3637
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Physical ; Physics, Atomic, Molecular & Chemical
WOS Research AreaChemistry ; Physics
WOS KeywordSECONDARY ORGANIC AEROSOL ; DOUBLY-CHARGED ANIONS ; INTRAMOLECULAR COULOMB REPULSION ; DICARBOXYLATE DIANIONS ; ALPHA-PINENE ; PINIC ACID ; ATMOSPHERIC IMPLICATIONS ; PARTICLE FORMATION ; SULFURIC-ACID ; OZONOLYSIS
Abstractcis-Pinic acid is one of the most important oxidation products of alpha-pinene - a key monoterpene compound in biogenic emission processes. Molecular level understanding of its interaction with water in cluster formation is an important and necessary prerequisite for ascertaining its role in the aerosol formation processes. In this work, we studied the structures and energetics of the solvated clusters of cis-pinate (cis-PA(2-)), the doubly deprotonated dicarboxylate of cis-pinic acid, with H2O, CH3OH, and CH3CN by negative ion photoelectron spectroscopy and ab initio theoretical calculations. We found that cis-PA(2-) prefers being solvated alternately on the two -CO2- groups with increase of solvent coverage, a well-known solvation pattern that has been observed in microhydrated linear dicarboxylate dianion (DCn2-) clusters. Experiments and calculations further reveal an intriguing feature for the existence of the asymmetric type isomers for cis-PA(2-)((HO)-O-2)(2) and cis-PA(2-)(CH3OH)(2), in which both solvent molecules interact with only one of the -CO2- groups, a phenomenon that has not been observed in DCn2- water clusters and exhibits that the subtle effect of the rigid four-membered carbon ring brought on the cis-PA(2-) solvation. The dominant interactions between cis-PA(2-) and solvent molecules form bidentate O- center dot center dot center dot H-O H-bonds for H2O, O- center dot center dot center dot H-C and O- center dot center dot center dot H-C H-bonds for CH3OH, and tridentate O- center dot center dot center dot H-C H-bonds for CH3CN. The formation of inter-solvent H-bonds between H2O and CH3CN is found to be favorable in mixed solvent clusters, different from that between H2O and CH3OH. These findings have important implications for understanding the mechanism of cluster growth and the formation of atmospheric organic aerosols, as well as for rationalizing the nature of structure-function relationship of proteins containing carboxylate groups in various solvent environments.
Language英语
WOS IDWOS:000369508100031
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/171367
Collection中国科学院大连化学物理研究所
Corresponding AuthorJiang, Ling; Wang, Xue-Bin
Affiliation1.Pacific NW Natl Lab, 902 Battelle Blvd,POB 999,MS K8-88, Richland, WA 99352 USA
2.Chinese Acad Sci, State Key Lab Mol React Dynam, Collaborat Innovat Ctr Chem Energy & Mat, Dalian Inst Chem Phys, 457 Zhongshan Rd, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Hou, Gao-Lei,Kong, Xiang-Tao,Valiev, Marat,et al. Probing the early stages of solvation of cis-pinate dianions by water, acetonitrile, and methanol: a photoelectron spectroscopy and theoretical study[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2016,18(5):3628-3637.
APA Hou, Gao-Lei,Kong, Xiang-Tao,Valiev, Marat,Jiang, Ling,&Wang, Xue-Bin.(2016).Probing the early stages of solvation of cis-pinate dianions by water, acetonitrile, and methanol: a photoelectron spectroscopy and theoretical study.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,18(5),3628-3637.
MLA Hou, Gao-Lei,et al."Probing the early stages of solvation of cis-pinate dianions by water, acetonitrile, and methanol: a photoelectron spectroscopy and theoretical study".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 18.5(2016):3628-3637.
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