Strong light fields coax intramolecular reactions on femtosecond time scales

被引：27

作者：

Krishnamurthy, M ^{[1
]}

Rajgara, FA ^{[1
]}

Mathur, D ^{[1
]}

机构：

[1] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India

来源：

JOURNAL OF CHEMICAL PHYSICS | 2004年 / 121卷 / 20期

关键词：

D O I：

10.1063/1.1819895

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：

Energetic H-2(+) ions are formed as a result of intramolecular rearrangement during fragmentation of linear alcohols (methanol, ethanol, propanol, hexanol, and dodecanol) induced by intense, pulsed optical fields. The laser intensity regime that is accessed in these experiments (peak intensity of 8x10(15) W cm(-2)) ensures multiple ionization of the irradiated alcohol molecules such that Coulomb explosions would be expected to dominate the overall fragmentation dynamics. Polarization dependent measurements show, counterintuitively, that rearrangement is induced by the strong optical field within a single, 100 fs long laser pulse, and that it occurs before Coulomb explosion of the field-ionized multiply charged alcohols. (C) 2004 American Institute of Physics.

引用

页码：9765 / 9768

页数：4

共 14 条

[1]

[Anonymous], 1999, HYP MOL MOD SYST REL

[2]

[Anonymous], 1994, FEMTOCHEMISTRY ULTRA

[3]

Bandrauk A.D., 1994, MOL LASER FIELDS

[4] Intensity-selective, field-induced dissociative ionization of CS2 by femtosecond-duration light pulses [J].

Banerjee, S ;

Kumar, GR ;

Mathur, D .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1999, 32 (17) :4277-4292

[5]

HASSON KC, 1996, P NATL ACAD SCI USA, V93, P1512

[6]

Jensen P., 2000, COMPUTATIONAL MOL SP

[7] Selective bond dissociation and rearrangement with optimally tailored, strong-field laser pulses [J].

Levis, RJ ;

Menkir, GM ;

Rabitz, H .

SCIENCE, 2001, 292 (5517) :709-713

[8] Nonadiabatic multielectron dynamics in strong field molecular ionization [J].

Lezius, M ;

Blanchet, V ;

Rayner, DM ;

Villeneuve, DM ;

Stolow, A ;

Ivanov, MY .

PHYSICAL REVIEW LETTERS, 2001, 86 (01) :51-54

[9] MULTIPLY CHARGED MOLECULES [J].

MATHUR, D .

PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1993, 225 (04) :193-272

[10] MASS SPECTROMETRIC ANALYSIS - MOLECULAR REARRANGEMENTS [J].

MCLAFFERTY, FW .

ANALYTICAL CHEMISTRY, 1959, 31 (01) :82-87

← 1 2 →